erratic idle after cpu reset on CTR?? with ITR ecu? help?
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From: Never Never Land, NEVER, LAND
erratic idle after ecu reset on CTR?? with ITR ecu? help?
I have A 99 CTR engine... running on an OBD 1 ecu via obd1/odb2b conversion harness. Since I got the engine the car has basically been only running on this setup.
The ecu supposedly is a home job program (so the provider claims) that he uses on his fully built ITR motor.
At first i was concerned as to what he would tune his ecu for his setup.... was more aggressive than was needed for my setup. My setup being a stock ctr... intake/exhaust/ no cat/and this programmed ecu.
Anyways basically I know the ecu does no harm.... this is based on the fact that i have dynoed with it and the air/fuel ratio was great... didnt go above 13.5 anywhere... and it put down 160 whp @ 8500 rpmon a dynojet and whp was still rising on a very hot day. Compared to all the other ctr stock numbers i have seen these numbers are great.
Anyways whenever i reset this itr ecu... the idle is jumpy between 1050 rpm and 1400 rpm for about a week. Its very annoying. I dont know if im being paranoid... but it also feels slower and a friend recently noticed white smoke out of my exhaust that he has never noticed before... and i was kind of aware of this anytime i reseted the ecu.
Does anyone have any ideas why this maybe happening? what i can do to stop this or what really does white smoke mean?
Also I have a autometer air/fuel ratio gauge... ( i know they are very inaccurate) but still you can get the just of whats going on.... from it i always assumed the car ran rather rich. On idle the mixture always sat on rich... i always get a little dark smoke at low rpms with light revs and from the gas milage i just assumed it was an aggressive prog (as orig it was for a built itr that claims revs of 10000 rpm plus) ... and still i see the gauge sitting and reading the same overly rich settings than normal. But doesnt white smoke mean you are running lean? or am i incorrect?
on my vafc idle reads around a very steady 750 rpms under normal conditions... but resetting causes an erratic idle of 1050 - 1400 rpms.
basically using all of this info can anyone come to any conclusions or can help me out with anything that could help resolve this?
also is any damage/serious damage being done?
thank you in advance for the assistance
The ecu supposedly is a home job program (so the provider claims) that he uses on his fully built ITR motor.
At first i was concerned as to what he would tune his ecu for his setup.... was more aggressive than was needed for my setup. My setup being a stock ctr... intake/exhaust/ no cat/and this programmed ecu.
Anyways basically I know the ecu does no harm.... this is based on the fact that i have dynoed with it and the air/fuel ratio was great... didnt go above 13.5 anywhere... and it put down 160 whp @ 8500 rpmon a dynojet and whp was still rising on a very hot day. Compared to all the other ctr stock numbers i have seen these numbers are great.
Anyways whenever i reset this itr ecu... the idle is jumpy between 1050 rpm and 1400 rpm for about a week. Its very annoying. I dont know if im being paranoid... but it also feels slower and a friend recently noticed white smoke out of my exhaust that he has never noticed before... and i was kind of aware of this anytime i reseted the ecu.
Does anyone have any ideas why this maybe happening? what i can do to stop this or what really does white smoke mean?
Also I have a autometer air/fuel ratio gauge... ( i know they are very inaccurate) but still you can get the just of whats going on.... from it i always assumed the car ran rather rich. On idle the mixture always sat on rich... i always get a little dark smoke at low rpms with light revs and from the gas milage i just assumed it was an aggressive prog (as orig it was for a built itr that claims revs of 10000 rpm plus) ... and still i see the gauge sitting and reading the same overly rich settings than normal. But doesnt white smoke mean you are running lean? or am i incorrect?
on my vafc idle reads around a very steady 750 rpms under normal conditions... but resetting causes an erratic idle of 1050 - 1400 rpms.
basically using all of this info can anyone come to any conclusions or can help me out with anything that could help resolve this?
also is any damage/serious damage being done?
thank you in advance for the assistance
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CSHornet60
Honda Civic / Del Sol (1992 - 2000)
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Mar 5, 2007 09:52 AM
