check for a loose or broken vacume line on the engine probably on the intake
Try cleaning the EGR valve.
at 3000rpm it should be 56psi
Driver error.
A faulty camshaft can cause your 1991 Nissan Maxima to idle erratically. A diagnostic test could verify the cause of the improper idling speed.
There are a number of reasons why a 1991 Toyota Corolla engine would stop running after startup. It could the idle control, an EGR leak, or low fuel pressure.Ê
check your IACV but that is probably not gonna fix it. you won't believe it because it sometimes doesn't set a code but, the temp sensor is shorted internally. change it, reset computer and away she'll go. found that to be #1 cause on most acuras.
Was there any recent work done to the car? When did the idle problem start? Does the idle get worst when you turn on the AC? Answer these questions and then I may help.
The idle is preset and controlled by the Idle Air Control Motor. You may have a dirty throttle plate that could cause a problem.
Yes if it is stuck open.
One thing that would cause your 1999 Pontiac Montana to stall at idle is the idle being set too low. You should raise it to see if that fixes the problem.
Probably not. They would have to be clogged solid not to let engine idle in which case the engine would not run at any speed. If they were semi-clogged the engine would idle but hold engine back from revving up.
NO.