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Old 11-02-12, 12:45 AM   #1 (permalink)
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jumping idle ?

hey everyone ! one of my friends brought me his acura 3.2tl 200 this passed weekend with a intire exhaust system to redo and the idle was very rough and couldnt drive well.

I fixed the exhaust first in case it could be the o2 sensors not liking the freeflow lol

Now i looked it up and found that the most common problem for this is the idle air control valve. i changed it and now drives better, because befor it was hard to drive with it normally, ( rough accel, wanting to stall at stop and more ),BUT the idle is still jumping.

now i tested a few things and found that if i unplugged what i believe would be a throttle position sensor, the idle stopped jumping but the trans would shift hard. when i reset the C.E.L the idle started jumping again.

now i didnt clean out all the throttle body with cleaner cause i didnt have any, BUT cleaned it well anyway, ill buy cleaner tomorow, and clean it, see if it helps.

anybody have any ideas whats making it jump?

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Old 11-05-12, 02:00 PM   #2
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a bubble or a faulty ECT sensor can also make for a jumpy idle. Try bleeding the cooling system first.
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Old 11-10-12, 09:51 AM   #3
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Had same problem, bled and worked great. Was worse if it wasnt used for a few days
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