Low/odd idle and stalling on warm start
08-26-14, 01:05 AM
#1
Triangles and Cats
Thread Starter
Low/odd idle and stalling on warm start
My idle when the car is warmed up is pretty much always about 600 rpm. Is theres something wrong? Or is that relatively normal?
Sometimes when ive driven any sort of distance to the point that the car is warmed up and turn it off, when i try to start it again itll turn over just fine, fire up alright to about 600 rpm, then just die out unless i keep my foot planted on the throttle (should i not do that?). If the car does start up fine often times the idle will rhythmically bounce up and down and dip so low that the car will stall. Usually from something like 500-900 give or take.
Vacuum leak? Adjustments needed?
Sometimes when ive driven any sort of distance to the point that the car is warmed up and turn it off, when i try to start it again itll turn over just fine, fire up alright to about 600 rpm, then just die out unless i keep my foot planted on the throttle (should i not do that?). If the car does start up fine often times the idle will rhythmically bounce up and down and dip so low that the car will stall. Usually from something like 500-900 give or take.
Vacuum leak? Adjustments needed?
08-26-14, 08:51 AM
#3
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First things first. Ground (or short) the initial set connector. Adjust your TPS to 1 volt, engine fully warm or one test lamp lit, or 1000 Ohms, whichever method you use. Then adjust the idle to 750. Don't forget to remove the short/ground wire from the initial set connector. Now, take the car out for a test drive to see if your problem is still there. If so, then start looking for vacuum leaks.
08-26-14, 12:41 PM
#5
MECP Certified Installer
My idle when the car is warmed up is pretty much always about 600 rpm. Is theres something wrong? Or is that relatively normal?
Sometimes when ive driven any sort of distance to the point that the car is warmed up and turn it off, when i try to start it again itll turn over just fine, fire up alright to about 600 rpm, then just die out unless i keep my foot planted on the throttle (should i not do that?). If the car does start up fine often times the idle will rhythmically bounce up and down and dip so low that the car will stall. Usually from something like 500-900 give or take.
Vacuum leak? Adjustments needed?
Sometimes when ive driven any sort of distance to the point that the car is warmed up and turn it off, when i try to start it again itll turn over just fine, fire up alright to about 600 rpm, then just die out unless i keep my foot planted on the throttle (should i not do that?). If the car does start up fine often times the idle will rhythmically bounce up and down and dip so low that the car will stall. Usually from something like 500-900 give or take.
Vacuum leak? Adjustments needed?
08-26-14, 04:10 PM
#7
Triangles and Cats
Thread Starter
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08-26-14, 04:59 PM
#9
Triangles and Cats
Thread Starter
Alright that made the running warm idle absolutely perfect after about a full turn and a half actually. But when i warm the car up, turn it off, leave it off for a bit, and start it again the idle is still real low until i drive it a bit. Then its perfect again.
Your tip did help though so thank you regardless
Your tip did help though so thank you regardless
08-26-14, 05:28 PM
#10
Alright that made the running warm idle absolutely perfect after about a full turn and a half actually. But when i warm the car up, turn it off, leave it off for a bit, and start it again the idle is still real low until i drive it a bit. Then its perfect again.
Your tip did help though so thank you regardless
When its low idle when you start it hot, does the exhaust smell rich? I wonder if you have a leaky injector. Also, lowish compression could give you the symptoms also
08-26-14, 05:37 PM
#11
Triangles and Cats
Thread Starter
Ill check when i leave the house again later
08-26-14, 11:14 PM
#13
Triangles and Cats
Thread Starter
yeah it does smell rich on warm start. like i said compression is exceptional
08-27-14, 12:26 AM
#15
Triangles and Cats
Thread Starter
I think i had it done when i got the car about a year and a half ago
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