what could it be?
whats up honda-tech! well i got a little problem with my 96 jdm gsr swapped eg. when my car is super cold meaning left overnight, as soon as i start it at around 2.3k the car begins to studder, it only does that if you lightly hold the rpms around there. but as soon as the motor warms or i go "wot" the problem goes away. things i have done: new iac, new coil. spark plugs, cap, rotor and air filter and i also checked all my vacuum lines and its all good. im thinking that maybe its a faulty O2 sensor but i have no check engine light, my check engine light does work incase you are wondering. help!!!! http://is.rely.net/1-92-29998-l-1gbM...AmVuBW3hGg.gif
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Re: what could it be? (zero-one)
The ECU runs open loop when the engine is cold, ignoring or waiting for some sensor inputs like the one from the O2 sensor that needs to be hot to work. So forget about that idea.
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Re: what could it be? (Perfectionist)
so are you telling me to check it or not. and what does a heater 02 actually do and where is it located
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Re: what could it be? (zero-one)
bump
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Re: what could it be? (zero-one)
well i changed the dizzy and it helped alot it still does it slightly but way better thanks for your help anyways
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Re: what could it be? (zero-one)
are you running a stock or chipped computer?
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Re: what could it be? (slambedcivic)
right before i put the new dizzy. i was obd2 gsr. and it ran good. now i have and obd1 chipped gsr comp.
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Re: what could it be? (slambedcivic)
right before i put the new dizzy. i was obd2 gsr ecu. and it ran good. now i have and obd1 chipped gsr ecu. sorry for the double reply it use to do it bad around 2.3k now its around 900 rpms but way slightly barely noticible
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Re: what could it be? (zero-one)
its most likely impropper fueling in that rpm range with the map thats on the computer. altho it reads STOCK map, they are still vehicle specific.
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Re: what could it be? (slambedcivic)
so you think i need a new map sensor is there a way i can check it.
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Re: what could it be? (zero-one)
you need to have it tuned. running it like it is, isnt gonna hurt it. but its not helping matters any.
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