Help me trouble shoot my turbo setup

[Pastor_Protege]

I was able to fire my engine today and I had some trouble. (BP with vj-20 turbo, GTX injectors and TMIC) As soon as I start it up, the rpms rise like crazy until about 4000 RPMS without me hitting the gas at all. It might even go higher but that's when I shut it off. Right now I have an open DP and I haven't wired the wideband O2 sensor yet. I also wired an extension on the wires leading to the VAF. If I wired something wrong there could it cause this to happen? Any help would be appreciated.

[elscotto80]

Might have a crazy vaccume leak, or your throttle cable is messed up for some reason. When I had an IC pipe unhooked, it would rise really high, then settle at 1k and die. Double check that wiring also.

[Shades]

Make sure your throttle cable isn't caught on something... mine did that once!

[Pastor_Protege]

Thanks guys! It was the throttle cable after all (*sigh of relief*). There was a very small twist in it right where it connects to the TB. I must have looked at the thing 5 times before I saw it. It idles well now but my boost gauge is not showing any boost. I'm sure it's a problem with the way I hooked up the gauge and not the turbo. I'll try fooling with it again tomorrow. Once I get my PLX wideband O2 sensor hooked up I'll take some pics.

[Lex]

Congrats on getting it started!

Revving it while sitting still will not give you much of a reading on the boost gauge if that is what you mean .... but you should see vacuum.

[Shades]

I had that same problem when I did an oil change once... I moved the cable outta the way to reach under the intake manifold to get the filter. :microwave

[elscotto80]

The motor needs a load in order to get boost.

[Pastor_Protege]

Congrats on getting it started!

Revving it while sitting still will not give you much of a reading on the boost gauge if that is what you mean .... but you should see vacuum.

Thanks Lex. I was just revving the engine. Hopefully it will be ready to drive today and I'll see if the gauge works then.

[neuspeedescort]

goo dto hear it was a simple fix. im really wanting to see how your set-up performs.

NEUMAN

[Pastor_Protege]

goo dto hear it was a simple fix. im really wanting to see how your set-up performs.

NEUMAN

Thanks. I'm still working on the custom front engine mount. 1/4 inch hardened steel can be very stubborn. I'll post some results as soon as I get them.

[D323]

congrats vince. Glad its up and running.