Idling problem

302pusher · July 31st, 2007, 11:04 AM

What are some things that may cause my engine to be idling rough? Its a 1990 LX 5.0 with 72,500 miles. only mods are CAI and flowmasters. it was idling rough even before i put the CAI on. i have used some fuel injector cleaner, which improved it a little bit. do you think it could be the oxygen sensor? thanks for any info!!

nasty92LX · July 31st, 2007, 11:48 AM

Did you do plugs,wires,throttle body cleaner. i would try new oxygen sensor or idle positioning sensor.

TENGRAM · July 31st, 2007, 05:42 PM

don't waste your $$$ guessing at which parts need to be replaced.Check for Codes

also you might want to Set your Timing and do the Base Idle Reset

let us know what codes you get

302pusher · August 1st, 2007, 09:07 AM

Thanks Tengram,

I'm going to try getting the codes this afternoon, i'll let you guys know what comes up.

patwrecked · August 1st, 2007, 04:57 PM

clean the idle air control valve on the throttle body

July 31st, 2007, 11:04 AM	#1
302pusher Newbie Join Date: Jul 2007 Location: VA Posts: 15 iTrader: 0 reviews	Idling problem What are some things that may cause my engine to be idling rough? Its a 1990 LX 5.0 with 72,500 miles. only mods are CAI and flowmasters. it was idling rough even before i put the CAI on. i have used some fuel injector cleaner, which improved it a little bit. do you think it could be the oxygen sensor? thanks for any info!!

July 31st, 2007, 05:42 PM	#3
TENGRAM Hardcore Enthusiast Join Date: Jun 2006 Posts: 1,027 iTrader: 0 reviews	don't waste your $$$ guessing at which parts need to be replaced.Check for Codes also you might want to Set your Timing and do the Base Idle Reset let us know what codes you get __________________ 89 GT t5 3.73 www.my5oh.com/

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July 31st, 2007, 11:48 AM	#2
nasty92LX Regular Join Date: Mar 2007 Posts: 184 iTrader: 0 reviews	Did you do plugs,wires,throttle body cleaner. i would try new oxygen sensor or idle positioning sensor.

August 1st, 2007, 09:07 AM	#4
302pusher Newbie Join Date: Jul 2007 Location: VA Posts: 15 iTrader: 0 reviews	Thanks Tengram, I'm going to try getting the codes this afternoon, i'll let you guys know what comes up.

August 1st, 2007, 04:57 PM	#5
patwrecked Regular Join Date: Feb 2007 Posts: 339 iTrader: 0 reviews	clean the idle air control valve on the throttle body

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