check your catalytic converter make sure its not clogged.
check your catalytic converter make sure its not clogged.
If it was clogged it wouldnt run hardly at all. he stated that when you get up to speed higher speeds it runs fine without a issue only low idle an low speeds...Not the cat!Originally Posted by Dr.G35
might be the cat.
Your crazymight be the cat.
Might be his brakes too
You'd be suprised. An ex had a '98 Civic that was idling erratically hot & cold...I replaced the idle control valve/solenoid and it fixed the CEL and it then idled fine UNTIL it warmed up. You'd have to keep your left foot on the brake and right foot on gas to keep from stalling. No CEL's. Replaced the O2 sensors, no change. It ended up being a partially clogged cat.
Normally if a cat is clogged you'd think whether it was hot of cold it would have the same effect. I don't think the material in them expands much to heat so I don't know how or why it was effecting it. Made no sense to me but with a new catalytic converter it still runs fine 2 years later and passes emmissions
hey anything can be the cause....I think its his brakes lolYou'd be suprised. An ex had a '98 Civic that was idling erratically hot & cold...I replaced the idle control valve/solenoid and it fixed the CEL and it then idled fine UNTIL it warmed up. You'd have to keep your left foot on the brake and right foot on gas to keep from stalling. No CEL's. It ended up being a partially clogged cat.
Normally if a cat is clogged you'd think whether it was hot of cold it would have the same effect. I don't think the material in them expands much to heat so I don't know how or why it was effecting it. Made no sense to me but with a new catalytic converter it still runs fine 2 years later and passes emmissions
But yes I have seen that too...But going by how he said its running great at above idle I don't think thats his problem..Sounds more like tune up issue...But who knows could be his brakes
That's the thing, the Civic ran fine as long as your foot was on the gas so the last thing I'd think it was the cat.hey anything can be the cause....I think its his brakes lol
But yes I have seen that too...But going by how he said its running great at above idle I don't think thats his problem..Sounds more like tune up issue...But who knows could be his brakes
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