Idling issue

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adamgsr

Well-Known Member
Joined
Feb 2, 2007
Messages
199
Location
Adelaide
Hey guys
Thought I'd put a post up and see if someone has any ideas or had the same problem.

Well I've got a TME with a 7 motor running the 6 loom still.
I've changed my inlet manifold, throttle body, fuel rail and fuel reg to all after market.

My new throtle body is a wank looking one that doesn't run the coolant through it and is suited for a 7-9 Evo.
Have been having issues with the idle control wiring due to having to run a 7 idle control but still having the 6 loom in the car I've had to fit a new 7 plug to loom.
Have finally sorted out the wires, i then had my tps having a voltage of 3.5
sorted that out today and got it down to .7v

Now the car changes idle
- sometimes runs ok at about 750rpm just needs the idle to be bumped up.
- now most the times it starts hunting between 750-1500 and keeps on going.

Bare in mind I have installed 272 cams and a power fc but not tuned yet

Also I have set fuel pressure to 40psi

Have I got an issue with a throttle body tps or is it in the tune fuel ratio???
 
you might have a air leak via the intercooler piping , or the ISC might be broke , its very common with the 7/8/9 ( usually due to higher boost application )
 

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