corvette 02's
#11
Staging Lane
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Ok thanks guys I noticed my truck was idling a little rougher in the mornings since the header install? had the same problem with my T.A.? heard something about the coating on the headers messing with the 02's? Oh well it has 90,000 miles so it could prob. use a set anyways!
#12
PT's Slowest Truck
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Ok thanks guys I noticed my truck was idling a little rougher in the mornings since the header install? had the same problem with my T.A.? heard something about the coating on the headers messing with the 02's? Oh well it has 90,000 miles so it could prob. use a set anyways!
Originally Posted by Mangled03gmc
In that case I might be in for a set, I am getting super rich afr's sometimes, the damn truck sounds like it is on a 2 step, untill it clears up, which happens after I pop the gas a few times.. I knew it has to do with heat but couldn't put my finger right on it...
#13
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Na not getting no engine codes at all or lights.. Just randomly gets a super retarded idle, under light driving, but heals up within a second or so... Talk to the tuner and he said it was the 02's not staying heated..
#14
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When I got my truck tuned, the O2 sensors were very lazy at idle. They would go rich, stay there for a few seconds, then go lean, stay there for a few seconds, etc, etc. If you bring up the idle to around 1500, they would function faster or what is considered more normal. After a while, this would turn on a check engine light. He also recommended the 13111 O2 sensors and said he had read numerous articles telling about these sensors helping with the longtube/lazy O2/check engine light problem. Let us know how it works out.
#15
I am having the same problem off and on, I have been putting it off long enough, I need some new ones.LOL. It just stumbles on the idle every now and then, usually more often if the AC is on, but straightens itself out pretty quick. Mine have 130,000+ miles on them,so they are due for replacement anyway.
#17
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Actually the coating will help the O2's as it retains heat and keeps it in the exhaust system, but I could see how your truck may run rougher if not tuned for the headers.
hmm makes since. I have a nelson tune on it for all the current mods i have including the headers.
hmm makes since. I have a nelson tune on it for all the current mods i have including the headers.
Last edited by soon2befast04; 09-17-2009 at 06:31 PM.
#20
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just picked a set up at advance autoparts. man did i got a hell of a deal i got both of them for 78$ idk if it was a comp. error or what but sure beats 90$ a piece for the truck ones!!! talk about a long harness!! i bet there 3 1/2 ft. long!! i noticed the housing on the sensor is quite abit larger as well..