89 hard start runs bad
#2
RE: 89 hard start runs bad
any codes????
someone may correct me, but before a certain threshold in the throttle, the computer takes readings from several different sensors to determine proper AF ratio, etc (i.e. o2 sensor, MAF, coolant temp, TPS, etc.) after the threshold is met like at WOT, the computer disregards many sensors and goes off preset tables. so maybe one or more of those items are out causing it to run bad at partial throttle. what do you guys think?
someone may correct me, but before a certain threshold in the throttle, the computer takes readings from several different sensors to determine proper AF ratio, etc (i.e. o2 sensor, MAF, coolant temp, TPS, etc.) after the threshold is met like at WOT, the computer disregards many sensors and goes off preset tables. so maybe one or more of those items are out causing it to run bad at partial throttle. what do you guys think?
#3
RE: 89 hard start runs bad
ORIGINAL: raisinbran
any codes????
someone may correct me, but before a certain threshold in the throttle, the computer takes readings from several different sensors to determine proper AF ratio, etc (i.e. o2 sensor, MAF, coolant temp, TPS, etc.) after the threshold is met like at WOT, the computer disregards many sensors and goes off preset tables. so maybe one or more of those items are out causing it to run bad at partial throttle. what do you guys think?
any codes????
someone may correct me, but before a certain threshold in the throttle, the computer takes readings from several different sensors to determine proper AF ratio, etc (i.e. o2 sensor, MAF, coolant temp, TPS, etc.) after the threshold is met like at WOT, the computer disregards many sensors and goes off preset tables. so maybe one or more of those items are out causing it to run bad at partial throttle. what do you guys think?
#6
RE: 89 hard start runs bad
You say runs bad, sluggish, misfire, no power? Several things come into play. Injector clean, exhaust restriction, doubt it though since you have power after 3500 rpms. How is it on a cold start? Hard to start, misfire then straightens out? Could be air flow meter, hows the throttle response? Things to think about?[8D]
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riohippy
Corvette C4 Forum
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01-25-2008 09:22 AM