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Re: will not idle
A few questions:
Is it difficult to start too? Need to keep your foot on the pedal?
Carb or FI?
Did this just start happening? Gradually? Correspond with some other event or part replacement?
I believe your vehicle has an option for OBDII diagnostics. If so, stop by an auto parts store and ask if they can do a code reading. Most will do it at no cost. This will hopefully give a definitive reason for the problems.
In the meantime, check for vacuum leaks. Inspect for loose or cracked hoses. I know this can be difficult, but try keeping it running while listening for a sucking sound that isn't the intake.
If it's carb'ed, check the choke and its associated linkages.
Check the timing.
Get back to me with the results, we can pick up from there. Mike
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Could be a dirty throttle body, vac leak, or a defective idle air control valve. The computer adjusts idle speed by controlling the amount of air entering the throttle body via the control valve. Is the check engine light on ?
It should have an idle air control valve which lets air into the intake to control the idle speed. The valve could be faulty, or dirty, or the throttle body could be dirty. The computer opens and closes the valve to regulate idle speed.
First off, some people hate to hear it but if it ran fine before you did this work, go back over what you did.
What fuel sensor and idle speed sonsor did you replace? Could you mean the IAC (Idle Air Control) and TPS (Throttle Posistion Sensor)? Both of these are adjustable.The Pridle in the IAC has to be measured and set to specific length and the TPS has to be set to a specific voltage with the throttle closed.
Now you could also have an EGR that is getting stuck open. The EGR is meant to open when the throttle os open AND at speed. If its got carbon build op causing it to not close all the way then it would die when you lift off the throttle.