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> 7afe rebuild, idle
post Jun 24, 2010 - 3:24 PM
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jms7436

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i just rebuilt my 7a and now it is idling weird. it revs from 1500 to 2000 rpms back and forth. cant find a vaccum leak... any ideas?
 
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post Jun 25, 2010 - 6:29 AM
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Jamchell

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Most likely your engine is getting too much air which causes the ecu to dump more fuel in order to keep the AFR in check.

Have you driven it, does it have good power? Does it also surge under load or just at idle? Have you tried spraying around all the usual places to be sure of no vacuum leaks? If you close off the intake for just a second or so does it die quickly or keep running? (some cars you shouldn't cover the intake or you may pull the plenum O-rings out of their seats and if you already have a leak this could potentially make it worse just FYI)

Posts in this topic
- jms7436   7afe rebuild   Jun 24, 2010 - 3:24 PM
- - Jamchell   Most likely your engine is getting too much air wh...   Jun 25, 2010 - 6:29 AM
- - jms7436   it only surges at idle.   Jun 25, 2010 - 1:17 PM
- - jms7436   and after i let off the gas it revvs for a second ...   Jun 25, 2010 - 1:24 PM
- - Jamchell   Have you tried cleaning the throttle body, a build...   Jun 25, 2010 - 5:54 PM


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