Rough idle when cold, help!
#1
Rough idle when cold, help!
Hey guys, lately i've noticed that when I start my car up cold it will idle down low and start to idle a little rough like it has a cam then it will jump up to regular idle and keep doing that until it warms up a little. Also if i get in and drive it while its doing this it kind of cuts out on when im driving noramlly. If i rev it up its fine and when it warms up its fine and runs great. Anyone have any ideas of what it could be? Bad o2's? Dirty sensor somewhere?
#2
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Hey guys, lately i've noticed that when I start my car up cold it will idle down low and start to idle a little rough like it has a cam then it will jump up to regular idle and keep doing that until it warms up a little. Also if i get in and drive it while its doing this it kind of cuts out on when im driving noramlly. If i rev it up its fine and when it warms up its fine and runs great. Anyone have any ideas of what it could be? Bad o2's? Dirty sensor somewhere?
#7
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i would replace that o2 sensor, the heater malfunction referes to the 02 sensor. I would get the EGR all tuned out by DYNO DAN asap.
http://www.obd-codes.com/p0135
http://www.obd-codes.com/p0135
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#8
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http://www.performanceworks1.com/PDF...eters%20V8.pdf
#16
They were wired correctly and there is no rear o2 on this car, just the front 2 in the headers.
I'll check out the wires. Last time I was under my car i noticed that the plastic wire loom I wrapped my o2 extensions in was completely melted and the wires were exposed so thats probably whats going on. Thanks for your help. I'll check it out and post up.
I'll check out the wires. Last time I was under my car i noticed that the plastic wire loom I wrapped my o2 extensions in was completely melted and the wires were exposed so thats probably whats going on. Thanks for your help. I'll check it out and post up.