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    Crappy fuel econ/sugglish power...

    I will try and keep this as short as possible because it is a long story. I'll give you all the facts so you are well informed. If you are bored at work, at home, or waiting for that bus, have a read. Or a drink!

    -I got a 1994 SE, bought it in 2004 with 64,400kms, granny owned.
    -Mom got a 1995 S (not a second gen, just overstock branded as a '95, its just a base DX), bought it in 2003 with 68,000kms, granny owned.
    -My car currently: 131k. Her car currently: 168k. Both automatic. Same 1.8L SOHC.

    Moms car: Always being more realible than mine, her car has always ran better and gotten better fuel econ, and always has just a bit more "pep" under hard throttle. I can squawk her tires no problem. She gets her oil changes done every 5000kms and usually goes over being too busy/forgetful. She doesn't do much else than that other than reg service. She drives it a bit more lightly than I do, and she easily gets 500-550kms a tank, sometimes 600 if going back and forth to Toronto alot.

    My car: Lemon, basically. I have replaced soooo many parts compared to the minimal stuff she's replaced ($3000 in repairs in 2008 alone). Both cars were low k and in excellent shape when bought, and yet I have had to replace MANY things. My worst foe - the distributor - I'm, including the factory one, on number four in five years. Her's - still on the factory one at 15 years old. I had decent power/econ when I first had the Pro - I could get 500kms a tank easy city/highway, most I got was 720kms on a trip back/forth to Parry Sound in 2005. But starting in winter 2007 I was getting an awful 300kms to a tank, and in warmer weather only 430-440kms a tank with alot of highway. I have crammed up to 47L of fuel into the tank, I think its larger than the factory one that rotted out and had to be replaced in 2005. I have always done my oil changes every 3000-3500k with high mileage oil, and I've used tons of additives in both oil and fuel. I baby this motor, which currently doesn't burn a drop or turn it black. When the valve cover was off during timing belt replacement, **** was clean. I drive my car a bit harder than my mom, but even so, it still has bad economy and under heavy throttle, its awful! Lots of gas is being fed, but its so boggy sometimes I have to shift it into lower gears myself. Couple this with the a/c on and a passenger and trunk full of cargo on a humid day, and you are going nowhere fast! I can barley squawk my tires uphill in a rainstorm.

    I used to drive alot of highway before I got my current job, now I only drive 20kms a day back/forth. And when I got a second car, the Protege did alot of sitting for the summer of 2007. Mind you to offest that, I took alot of trips to London and Toronto with it, however it wasn't quite the same afterwards. I did everything I could think of in January 2008 to get better econ/more power:

    -NGK plugs (already got new wires in 2005).
    -NAPA Gold fuel filter to replace the original, it was very corroded.
    -Ran three tanks of 94 octane during this time.
    -Cut down time on my cold idle starts.
    -Fresh oil.
    -Lucas Fuel Injector cleaner.
    -Tire pressures were fine, air filter was a couple months old.
    -13 inch steelies/tires, alignment was fine.

    Even after all this was done while it got slighty better, it was still ****ty. I had a mechanic jump the ODBI, and counted the CEL to a code of 17, which is "o2 sensor has detected a rich or lean condition". My guess was the sensor was not causing enough havoc to trigger the CEL. I had a buddy try and get the o2 sensor off - bitch would not come off. Torched the **** out of it until it was red hot, each time it barley moved. I gave up not wanting to replace the entire manfold if it threaded, and also seeing my heat shield bolts were f'ed too I'd know that would never come off without a fight. The CEL has barley ever been triggered in my five years of ownership - two days after the failed o2 sensor removal, as I left work it came on for about five seconds, then went off. It only did it one other time before back in October 2007, and it only lasted a couple seconds.

    I had the timing belt done in May of 2008; afterwards it felt even worse than before, plus come winter the RPMs were dropping too soon after extreme cold starts, causing the engine to sputter until it got warm enough. Not wanting to argue with my mechanic who stated he set the timing right, I had someone else check it and they re-adjusted it earlier this year, but I still wonder if its off.

    I did a whole bunch of stuff earlier this year (oil, air, PCV valve, additives, cleaned the throttle body, newer tires, flex pipe), again only a small change. Now to throw a large monkey wrench into all of this mess - for every e-test I have gotten on this car, I have managed to pass with lower numbers as the car got older and higher in k. It don't add up! I have a test from the previous owner from 2003 when the car had maybe 50,000kms, and the numbers were passible but not "as clean running". My current test from this year with 125,000kms on the clock - it barley registered! If its so "tuned" and passing e-tests without an issue, than why is the accleration crap and fuel econ crap?

    And yes, I know its an automatic, I couldn't drive stick back then. I know the error of my ways. The 5 speed '91 323 LX I'm trying to sell with the same 1.8L with 70,000 more k than my motor - this thing rips like ****! It begs to be revved high as it moves so effortlessly, it squawks in second gear, lots of life. Its not even tuned up, long overdue on an oil change and air filter, and the fourth cyl spark plug wire is arching and causing it to bounce and make noise...and it still runs better/has more power than my car.

    If you've read this far, thanks for your time! I'm hoping other 1st gen owners can help me out. From all what I've done to try and make it run better, here are the only things (I can see) that are left:

    -Filler neck has been leaking for a long time but I am lazy to get it replaced as it only smells like gas when extremely full. But would this cause lack of fuel pressure? Therefore lack of power?
    -Fuel injectors need professional cleaning?
    -I am more than likely due for plugs again but I know that won't be the full cure. (recommendations?)
    -I have a recent exhuast leak but believe me, it was still bad before this.
    -Cat converter is clogged? But if it was, could I have passed my e-test?
    -MAF is old, could it be ****ed?
    -I bet if I tripped the ODB again I'd still get "code 17". Does that mean the o2 sensor itself is bad, or something else is making the car run too rich? But again, if I had a bad o2 sensor and the car was running rich, could I have passed my e-test?
    -Lastly, could it not even be the motor at all, and is the transmission? These autos in these cars were always bad for rough shifting, moreso between first and second. Are these Escort trannies? My moms - always smooth shifting, never an issue, matches the motor fine. (Did they ever change the transmissions used for 1st gen models branded as '95s?) Mine - cost me $1700 in repeairs in 2008 at 117kms to replace the torque converter and a whole bunch of seals and gaskets that were ****ed. I was having issues in late 2007 with the "Hold" button not working correctly, or at all, and issues between 30-45km/h where the car would keep "bucking" if between 2-3000 RPM.

    The overall cause - granny didn't drive the car enough over ten years to keep things lubed, so stuff dried out. Another factor - in winter 2005 I had unknownly driven the car very low on tranny fuild for a while - it had gained a leak which ended up costing me $330. I often wonder if I did enternal damage to the tranny. But if I did, it should have been repaired in 2008 in my $1700 bill. As of 2009 it still up/downshifts kinda rough between 1st and 2nd, but its always been that way. Moms car - never any issues.

    tl;dr - both family owned Proteges bought with low k, same motor, auto. One more babied but more abused, one "forgotten and overdue on oil changes" but driven lighty. One with tranny issues, one without. One that has had too many parts to list replaced, one working on almost all of its originals. One with currently lower k, one with 37,000kms more. One gets horrible fuel ecomony/accleration/power, the other represents what an old auto Protege should be getting in fuel ecomony/accleration/power.

    Again, thanks for your time in reading this. Sometimes I wonder if my Protege was made at 4pm right before the long weekend.
    Last edited by Cool_Steve; 09-10-2009, 10:27 PM.
    ~ Stephen ~
    -1993 Ford Taurus LX (R.I.P.)
    -1994 Mazda Protegé SE (Canadian market trim pkg)
    -1990 Mazda 929 S
    -1991 Mazda 323 LX (Sold)
    -1992 Toyota Corolla LE (Davesfarm) <R.I.P. Sept. 2009>
    -1990 Toyota Corolla SE (Davesfarm) (still alive in 2013!)
    -1994 Buick Regal Custom (Davesfarm) <R.I.P. Sept. 2009>
    -1983 Pontiac Parisienne (Sold)

    #2
    Dam that is a lot of writing.

    The only thing that I can suggest is to replace the cables went you replace the plugs and check that your air mass flow sensor is working smoothly.

    Also what I did when I change my plugs last time was to pour some seafoam into the hole so it can penetrate from the to of the piston to free any stuck rings and clean out deposits.

    Do you have all of your splash guards since they help to improve aerodynamics and there fore save gasoline.
    Last edited by ivan15; 09-11-2009, 12:01 AM.

    Comment


      #3
      Originally posted by ivan15 View Post
      Dam that is a lot of writing.

      The only thing that I can suggest is to replace the cables went you replace the plugs and check that your air mass flow sensor is working smoothly.

      Also what I did when I change my plugs last time was to pour some seafoam into the hole so it can penetrate from the to of the piston to free any stuck rings and clean out deposits.

      Do you have all of your splash guards since they help to improve aerodynamics and there fore save gasoline.
      Cables? You mean spark plug wires? They are still good. How do you test if a mass air flow sensor is working correctly? I'm not doing Seafoam on such an old motor, besides I know my motor is clean inside.

      I know I wrote a novel but I'd still appreciate input from others who may have had the same issues I am having.
      ~ Stephen ~
      -1993 Ford Taurus LX (R.I.P.)
      -1994 Mazda Protegé SE (Canadian market trim pkg)
      -1990 Mazda 929 S
      -1991 Mazda 323 LX (Sold)
      -1992 Toyota Corolla LE (Davesfarm) <R.I.P. Sept. 2009>
      -1990 Toyota Corolla SE (Davesfarm) (still alive in 2013!)
      -1994 Buick Regal Custom (Davesfarm) <R.I.P. Sept. 2009>
      -1983 Pontiac Parisienne (Sold)

      Comment


        #4
        try replacing the pcv valve.
        -Steve

        94' Protege < Worklog<SOLD!
        VF10 powered!
        262 Whp & 257 Wtq
        13.1@107

        '02 Suzuki Bandit 600s

        Comment


          #5
          did you ever do a compression test on your engine? that would help. Also, run some injector cleaner to clean the injectors, check the fuel filter and the pump.

          P.S. get a manual, less trouble

          Comment


            #6
            Originally posted by Ace View Post
            try replacing the pcv valve.
            I did recently.

            Originally posted by 323driver View Post
            did you ever do a compression test on your engine? that would help. Also, run some injector cleaner to clean the injectors, check the fuel filter and the pump.

            P.S. get a manual, less trouble
            No, and I wonder how much that would cost. I run Lucas Fuel Injector cleaner several times. As stated in the OP, I did the fuel filter. If it was the pump the car wouldn't even run lol! I was 19 when I got this car and didn't know how to drive manual. I can now, but damn I'm lazy.
            ~ Stephen ~
            -1993 Ford Taurus LX (R.I.P.)
            -1994 Mazda Protegé SE (Canadian market trim pkg)
            -1990 Mazda 929 S
            -1991 Mazda 323 LX (Sold)
            -1992 Toyota Corolla LE (Davesfarm) <R.I.P. Sept. 2009>
            -1990 Toyota Corolla SE (Davesfarm) (still alive in 2013!)
            -1994 Buick Regal Custom (Davesfarm) <R.I.P. Sept. 2009>
            -1983 Pontiac Parisienne (Sold)

            Comment


              #7
              "I had the timing belt done in May of 2008; afterwards it felt even worse than before, plus come winter the RPMs were dropping too soon after extreme cold starts, causing the engine to sputter until it got warm enough. Not wanting to argue with my mechanic who stated he set the timing right, I had someone else check it and they re-adjusted it earlier this year, but I still wonder if its off"


              i think you have answered your own question


              Comment


                #8
                +1 on timing
                My car was sluggish and powerless when I first got it and I was getting awful mpg. When I replaced the timing belt I found out that when it was last done they used the wrong mark on the crank and it wasn't at TDC when it was set.
                Check it by taking out spark plug #1 and put a screwdriver in there. While holding the screwdriver turn the engine (clockwise) and feel when the piston is directly at the top. Then check the alignment of your cam. It's possible that you will need to adjust the cam a few teeth.
                1987 Acura Integra LS (Now Parting Out)
                1989 Acura Integra LS
                1992 Mazda 323 (Current DD)

                Comment


                  #9
                  how old are you now? if you got the car when you were 19, has the fuel filter been replaced? that all by itself can make a heck of a difference in fuel flow, especially if you were paying for gas since you were 19. the cheap stuff has a lot of crap in it that can clog up fuel filters over time. +1 for PCV too. cant go wrong replacing such cheap parts. checking the timing is easy, you can reference another post i just did on how to check it visually.. that's about $10 in parts (fuel filter, PCV] and 10 minutes to replace them and check the timing. (oh.. replace or temporarily remove the air filter too if its old, that can choke power as well.. but be sure to not run it without one in the rain!) let us know!
                  Last edited by cablemirc; 09-29-2009, 04:14 AM.
                  Guess who's back, back again. cable's back.. tell a friend.

                  Comment


                    #10
                    Originally posted by Cool_Steve View Post
                    -I bet if I tripped the ODB again I'd still get "code 17". Does that mean the o2 sensor itself is bad, or something else is making the car run too rich? But again, if I had a bad o2 sensor and the car was running rich, could I have passed my e-test?
                    So you have never changed the O2?
                    That thing is most likely buggered. Get a new Denso, Delphi/Delco or NTK/NTG unit. DO NOT get a BOSCH, they blow ass. That is the 5th spark plug, you replace that when you replace plugs. The problem with pre OBDII is that unless the O2 completely fails it will not set a code. O2s become either lazy which plays hell with power and mileage, or it becomes contaminated. Both of which do you no good.

                    Douse that sucker with liquid wrench and drive around, douse it again and again heat it up let it cool down and gently work it. It will come out.
                    A bad O2 will toast a cat.

                    The timing belt and dist timing may be off, only way to tell would be to set the crank to 1 TDC and verify that the upper sprocket is lined up with the notch in the head. Remove the upper cam cover and see.
                    On SOHC if the side without the tensioner is not taught when the idler is locked dow you can rotated the cam a tooth.

                    Beg/borrow/steal a timing light. Warm up the engine, shut it off. Jump the TEN and GRD terminals. Start the car and let the idle stabilize. Make sure everything is off, lights, AC, fan, radio etc. Verify that the timing is correct.
                    Its hard to see on the SOHC, its a funky angle.

                    The SOHC is a robust little engine.

                    I would also reccommend dumping in a quart of ATF into the gas tank at your next fill-up.

                    Shouldn't this be in the Engine/Drivetrain section? Wheres Deadly Sleeper?
                    Last edited by MADMIKE; 09-29-2009, 09:14 AM. Reason: Move to correct section?
                    -Michael
                    '90 Protege SE
                    Originally posted by charles
                    It's probably to fix that ****ing automatic seatbelt

                    Comment


                      #11
                      Originally posted by MADMIKE View Post

                      The SOHC is a robust little engine.

                      I would also recommend dumping in a quart of ATF into the gas tank at your next fill-up.

                      Shouldn't this be in the Engine/Drivetrain section? Wheres Deadly Sleeper?
                      What will the automatic transmission fluid do in the gas tank?

                      Comment


                        #12
                        Forgot about this thread, playin' catch up.

                        Originally posted by MazdaNoob View Post
                        "I had the timing belt done in May of 2008; afterwards it felt even worse than before, plus come winter the RPMs were dropping too soon after extreme cold starts, causing the engine to sputter until it got warm enough. Not wanting to argue with my mechanic who stated he set the timing right, I had someone else check it and they re-adjusted it earlier this year, but I still wonder if its off"


                        i think you have answered your own question
                        The person who re-checked my timing didn't do the GRD/TEN thing, so I don't think he fixed anything (although he had a light and adjusted something). I wasn't sure at the time which things I had to jump and I didn't want to **** up my car and fry something.

                        Originally posted by MinkelR View Post
                        +1 on timing
                        My car was sluggish and powerless when I first got it and I was getting awful mpg. When I replaced the timing belt I found out that when it was last done they used the wrong mark on the crank and it wasn't at TDC when it was set.
                        Check it by taking out spark plug #1 and put a screwdriver in there. While holding the screwdriver turn the engine (clockwise) and feel when the piston is directly at the top. Then check the alignment of your cam. It's possible that you will need to adjust the cam a few teeth.
                        TDC? Forgive my noobness. And I'm no mechanic.

                        Originally posted by cablemirc View Post
                        how old are you now? if you got the car when you were 19, has the fuel filter been replaced? that all by itself can make a heck of a difference in fuel flow, especially if you were paying for gas since you were 19. the cheap stuff has a lot of crap in it that can clog up fuel filters over time. +1 for PCV too. cant go wrong replacing such cheap parts. checking the timing is easy, you can reference another post i just did on how to check it visually.. that's about $10 in parts (fuel filter, PCV] and 10 minutes to replace them and check the timing. (oh.. replace or temporarily remove the air filter too if its old, that can choke power as well.. but be sure to not run it without one in the rain!) let us know!
                        I have had the car for over five years, second owner. Original fuel filter was replaced Jan. 2008. And yes I have been paying for my own gas. The new filter made little difference to economy. As stated, I did the PCV recently. Air filter too.

                        Originally posted by MADMIKE View Post
                        So you have never changed the O2?
                        That thing is most likely buggered. Get a new Denso, Delphi/Delco or NTK/NTG unit. DO NOT get a BOSCH, they blow ass. That is the 5th spark plug, you replace that when you replace plugs. The problem with pre OBDII is that unless the O2 completely fails it will not set a code. O2s become either lazy which plays hell with power and mileage, or it becomes contaminated. Both of which do you no good.

                        Douse that sucker with liquid wrench and drive around, douse it again and again heat it up let it cool down and gently work it. It will come out.
                        A bad O2 will toast a cat.

                        The timing belt and dist timing may be off, only way to tell would be to set the crank to 1 TDC and verify that the upper sprocket is lined up with the notch in the head. Remove the upper cam cover and see.
                        On SOHC if the side without the tensioner is not taught when the idler is locked dow you can rotated the cam a tooth.

                        Beg/borrow/steal a timing light. Warm up the engine, shut it off. Jump the TEN and GRD terminals. Start the car and let the idle stabilize. Make sure everything is off, lights, AC, fan, radio etc. Verify that the timing is correct.
                        Its hard to see on the SOHC, its a funky angle.

                        The SOHC is a robust little engine.

                        I would also reccommend dumping in a quart of ATF into the gas tank at your next fill-up.

                        Shouldn't this be in the Engine/Drivetrain section? Wheres Deadly Sleeper?
                        No, as stated me and someone else gave like hell to get it free, and it would not budge. I had ordered an OEM sensor to replace it but returned it. I bet its lazy, and its been like that for many years. If my O2 has been bad for years I'm sure my cat would have been toast by now (as per what you said). But its not. And on my latest e-test I blew some of the cleanest, lowest numbers yet. It was heated red hot when we tried. It would not come out. Again, I'm not a mechanic. I wish someone who knew these motors would take a quick look at mine. dist timing?

                        Anyway, I had a compression test done on the motor. I don't know if it was done correctly the first time, as he did it twice and the sets of numbers are way off each other.

                        Cyl 1 - 120 175
                        Cyl 2 - 120 170
                        Cyl 3 - 119 170
                        Cyl 4 - 185 180

                        What does someone make of these two sets of numbers? This motor burns no oil for its age, stays orange for a while, I change it every 3000-3500kms and have been using Valvoline Max Life and Fram filters for five years. Its a very well kept 1.8L SOHC. And yet, lacks power and good mpg's.
                        Last edited by Cool_Steve; 10-19-2009, 11:03 PM.
                        ~ Stephen ~
                        -1993 Ford Taurus LX (R.I.P.)
                        -1994 Mazda Protegé SE (Canadian market trim pkg)
                        -1990 Mazda 929 S
                        -1991 Mazda 323 LX (Sold)
                        -1992 Toyota Corolla LE (Davesfarm) <R.I.P. Sept. 2009>
                        -1990 Toyota Corolla SE (Davesfarm) (still alive in 2013!)
                        -1994 Buick Regal Custom (Davesfarm) <R.I.P. Sept. 2009>
                        -1983 Pontiac Parisienne (Sold)

                        Comment


                          #13
                          Check your timing, and by that I mean you will need to pull the timing cover off and check to make sure that the marks are lining up correctly! There are two sets on the top crank, MAKE SURE YOU USE THE CORRECT ONE! Then put it all back together, ground out the connection on the dia connector (can't remember off hand) and check the timing.
                          Remember with this step, check - check and then check again.

                          Also, the only real way to clean a fuel injector is to take it out and send it off like www.witchhunter.com, this means that your car will be down for a week or two unless you go to the junk yard and buy an extra set (and send those off).

                          Change the O2 sensor out (if you haven't already)! And when you do make sure you put some anti-seeze on the threads.

                          That is all that I can think of right now..
                          Roads? Where we are going we don't need roads...

                          Comment


                            #14
                            Anyone else think those compression numbers are okay? Also, if I knew my o2 sensor was bad years ago, will it get worse and worse as years pass? Now the weather is getting colder and the motor is working harder. Its horrible, I have 189kms and I'm at half a tank, mixture of city and highway.
                            Last edited by Cool_Steve; 11-09-2009, 06:31 AM.
                            ~ Stephen ~
                            -1993 Ford Taurus LX (R.I.P.)
                            -1994 Mazda Protegé SE (Canadian market trim pkg)
                            -1990 Mazda 929 S
                            -1991 Mazda 323 LX (Sold)
                            -1992 Toyota Corolla LE (Davesfarm) <R.I.P. Sept. 2009>
                            -1990 Toyota Corolla SE (Davesfarm) (still alive in 2013!)
                            -1994 Buick Regal Custom (Davesfarm) <R.I.P. Sept. 2009>
                            -1983 Pontiac Parisienne (Sold)

                            Comment


                              #15
                              Well, one outta 4 is okay. Those other 4 don't look so hot. but that in and of itself ain't gonna cause as many problems as you describe. I'd check the throttle position sensor. When it starts to fail it'll cause all your symptoms.
                              '90 AWD Protege, full GTR drivetrain swap, ~320 whp daily driver, RIP, and
                              '90 AWD Protege, yet another GTR swap, Open class rallycar with a Toyota GT4 gearbox swap, thus crossing the line between hobby and mental illness. And a Brabus E55 K8, removing all doubt.
                              http://www.wihandyman.com/forum/vbpi...?do=view&g=110
                              http://www.cardomain.com/ride/2599486

                              Comment

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