posted
here is the problem i just put a motor in my 91 crx dx model starts up fine runs good but the problem is when sitting at idle the engine revs up and down and the check engine light is on it is driving me nuts can anyone help guide me in the right direction
-------------------- (((The tramp thought she would keep me down but i won so up hers))) Posts: 2938 | From: oklahoma city | Registered: Aug 2004
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-------------------- TEAM STETSOM USA First to Compete with Stetsom Amps in the USA 150+ with a Grand Funk Railroad song 2005 Db Drag World Finalist SS 1-2 NW 9th Place 151.1 db 2006 NSPL Maryland State Record 157.9 db 2006 DbDrag World Finals Competitor SS 1-2 8 th Place 159.9 db 2007 NSPL Maryland State Record 160.3 2007 NSPL World Record 2400 amp ama 160.3( that didnt last long) 2008 Maryland State Record 159.6 2008 World Finals (burnt shi+ up) TEAM STINGER MARYLANDS LOUDEST DAILY DRIVER Posts: 784 | From: Glands Burning Maryland | Registered: Oct 2005
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Read the check engine code? im thinking maybe an 02 sensor altho usually when the 02 sensor fails 90% of the time the thing wont idle/run period itll just crank - turn over - and die
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posted
i had a 92 camaro that did that fouled out about 3 sets of plugs and then took it in the machinc put a new computer chip in and problem solved. but it could be a hundred things idle control, o2 sensor, weak vacum line somewhere,etc. i would agree with xtremesplokc and check engine codes fisrt.
-------------------- two 15" l7s us amps 2000 Posts: 323 | From: detroit | Registered: Sep 2006
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posted
check your codes if you have a haynes manual that will have all your codes and a trouble shooting guide to help you
Posts: 37 | From: warner robins ga. | Registered: Oct 2006
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quote:Originally posted by xtremesplokc: Read the check engine code? im thinking maybe an 02 sensor altho usually when the 02 sensor fails 90% of the time the thing wont idle/run period itll just crank - turn over - and die
dont die its the idle controle sensor
-------------------- (((The tramp thought she would keep me down but i won so up hers))) Posts: 2938 | From: oklahoma city | Registered: Aug 2004
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posted
I had the same problem in my 95 Civic and I just took some carb cleaner to the IAC valve and let it run for a bit and it solved the problem. Someone had told me that you needed to replace the part...turns out to be an expensive part but I found out that they rarely go bad and just need to be cleaned out sometimes. Hope that helps. Oh yeah there was also a small hose that had a small hole in it. So check all of the hoses near the IAC valve.
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