smelser125 Posted May 18, 2010 Share Posted May 18, 2010 i have a 86 2.5 tbi that idles and runs like crap till it warms up but when its cold its getting way to much fuel but the minute she gets warm she runs fine you guys have any ideas?? money is tight and wife gettin' ready to have knee surgery so can't be throwin' money at it... That's why i have turned to the mj gods for help thanks in advance Link to comment Share on other sites More sharing options...
Pete M Posted May 19, 2010 Share Posted May 19, 2010 Could be that your IAC (idle speed controller) is stuck in the warmed up position. :dunno: Link to comment Share on other sites More sharing options...
Bounty Hunter Posted May 19, 2010 Share Posted May 19, 2010 This should help you troubleshoot the throttle body and sensors: http://jeepgarage.free.fr/OWN/2.5l%20cec%20system.pdf Link to comment Share on other sites More sharing options...
rnobles Posted May 19, 2010 Share Posted May 19, 2010 Same problem here...i was thinking sensors too, but i swear i read on here that the computer uses presets until it gets warm, then uses the sensors. Is this true with the 2.5? :dunno: Link to comment Share on other sites More sharing options...
Pete M Posted May 19, 2010 Share Posted May 19, 2010 some sensors are used at startup (TPS, CPS, etc), others are not (o2, etc). Link to comment Share on other sites More sharing options...
Curt Posted May 19, 2010 Share Posted May 19, 2010 This should help you troubleshoot the throttle body and sensors: http://jeepgarage.free.fr/OWN/2.5l%20cec%20system.pdf This is exactly what I've been looking for. Thanks for posting the link. :thumbsup: Link to comment Share on other sites More sharing options...
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