1995 fleetwood idling issue - Chevy Impala SS Forum
 
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post #1 of 8 (permalink) Old 07-06-2012, 02:53 PM Thread Starter
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1995 fleetwood idling issue

When i first start the car it idles real rough and you can here it sucking air...if i give it some gas and hold it to higher RPM a few seconds i can let of the gas and it idles fine...it runs and drives fine after that....it almost starts up like a cold carburetor motor. This is after replacing opti, opti harness, cap, rotor, coil, plugs, wires, MAP sensor, and MAF sensor wire harness and pigtail. The only other thing i can think would be maybe the Mass Airflow Sensor. I am not familiar how the engine should run with this sensor being bad.
Any suggestions?
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post #2 of 8 (permalink) Old 07-07-2012, 09:36 AM
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is the check engine light on?

/ Will

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post #3 of 8 (permalink) Old 07-07-2012, 10:31 AM Thread Starter
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yes it is on and goes away after driving it sometimes
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post #4 of 8 (permalink) Old 07-07-2012, 11:35 AM Thread Starter
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heres a video i took of it running....

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post #5 of 8 (permalink) Old 07-07-2012, 12:26 PM Thread Starter
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i took off the ground on the battery for half hour....rechecked the codes....got a code for a throttle position sensor....i unplugged the throttle position sensor and started it up....runs great now just higher idle....so im assuming i have a bad TPS
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post #6 of 8 (permalink) Old 07-07-2012, 12:28 PM
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Do you have your IAT sensor hooked up to the silicone adaptor? Also try cleaning your maf with some electronics cleaner and see how that goes.


94 DCM FWB V4P w/ sunroof
Intake, Exhaust, 280 XFI, NSA 1.5rr w/ Bullet Vs2700 Springs, Built 643 heads/intake, L67 32.2lb Injectors, Mild Trans, Edge 3600, SS Springs, Belltech Drop Shocks
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post #7 of 8 (permalink) Old 07-10-2012, 10:45 PM
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Sounds like TPS. Don't be tempted by the cheap ones on ebay! Go to the parts store and spend the few bucks extra believe me

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post #8 of 8 (permalink) Old 07-11-2012, 06:02 PM Thread Starter
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well guess what...the mechanic at the shop used the incorrect firing order ...the drivers side had 2 wires in the wrong position on the opti....i swapped them out to the correct position....cars sounds normal now...its about 95% perfect again..still has an odd idle but you can here the cylinders are all firing correctly now.....i guess next time ill just do it my self....i went with a shop with a good name only with intentions of not sweating my ass off in 100+ degree temps and so i could just get it fixed and drive it again......lesson learned i guess
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