Problem starting, looking for suggestions

smoke3006 · Post by **smoke3006** » Wed Jul 22, 2009 8:35 pm

Engine turns over fine, but the car doesn't fire until I step on the gas pedal.
This is an 85 with a PE and other changes.
I cleaned the IAC but that didn't help.

Anyone have any suggestions?

Post by **hEaT** » Wed Jul 22, 2009 8:43 pm

Does it stay running after it starts and your foot off the pedal?

If not, your throttle screw might just be backed out too far.

adamt85 · Post by **adamt85** » Thu Jul 23, 2009 4:57 am

I had that symptom, my injectors where clogged really really bad

Mike McCreight · Post by **Mike McCreight** » Thu Jul 23, 2009 8:16 am

What voltage does your TPS read at closed throttle?
I think that's the best place to start.

Post by **DPDISXR4Ti** » Thu Jul 23, 2009 11:41 am

Got vacuum?

Post by **Ed Lijewski** » Thu Jul 23, 2009 12:31 pm

POssible defective ECT (Engine Coolant Temperature) sensor signal to the ECU resulting in overly rich mixture? Leaky valve seals (oil leaks into the cylinders and temporariily fouls the plugs on start-up)?

YMMV

Postal_DK · Post by **Postal_DK** » Thu Jul 23, 2009 1:11 pm

Ed Lijewski wrote:POssible defective ECT (Engine Coolant Temperature) sensor signal to the ECU resulting in overly rich mixture?
YMMV

you have an overview of how many ohms such a sensor will be?

smoke3006 · Post by **smoke3006** » Thu Jul 23, 2009 4:54 pm

Once it starts it runs ok, not great but ok.

I'll check the TPS.

Anyone thing I can use to clean the injectors safely?

Ray · Post by **Ray** » Mon Jul 27, 2009 7:06 am

Sam we can try and troubleshoot this later this week if you want -

Given the fact that your car is also down on power, and not making as much boost, it could be one of several things. We'll start with the easiest and cheapest first (vacuum) then go onto the rest (ECT, injectors, etc)

I dont think it's valve seals, ed - the car doesn't blow any oil smoke at all.