Check engine light after exhaust install
Honda-Tech Member
Joined: Nov 2004
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From: Snappin photoz, NY
Re: Check engine light after exhaust install (tngay)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tngay »</TD></TR><TR><TD CLASS="quote">go jump it for code</TD></TR></TABLE>
Deff get the code. My .02, possibly o2 sensor?
Deff get the code. My .02, possibly o2 sensor?
Junior Member
Joined: Dec 2004
Posts: 217
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From: Westlake, Ohio, US
Re: Check engine light after exhaust install (JDMDC2GSR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMDC2GSR »</TD></TR><TR><TD CLASS="quote">
Deff get the code. My .02, possibly o2 sensor?</TD></TR></TABLE>
yeah, probably the o2. nothing else is electrically connected to the motor that would get messed up from a new exhaust.
Deff get the code. My .02, possibly o2 sensor?</TD></TR></TABLE>
yeah, probably the o2. nothing else is electrically connected to the motor that would get messed up from a new exhaust.
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Member
Joined: Oct 2003
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From: WeHo, CA, USA
Re: (dFreezy)
check to make sure that your o2 sensor wasn't pushed toward the shift linkage by the new piping. If it's slightly angled when compared to stock, it might cause the o2 to hit something metal, short, and cause a CEL/blow fuses, etc.
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Joined: Feb 2004
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From: NASCAR WOOOO
Re: (hondamama7894)
what year teg? obd1 or 2? 2 o2 sensors or 1? probably an o2 sensor code of some sort.
as for o2 causing a misfire, even if the heater element wire shorts to the o2 signal wire, it still probably wouldn't cause a misfire because the ecu will see its signal voltage (normally .2 ish to 4.9ish) jump up to like 12 volts and immediately the ecu would go over into open loop. even if somehow someway the signal voltage was interupted to create a constant voltage LTFT would compensate. you're misfire is coming from something else. the o2 doesn't cause problems, it reads problems... your car runs all the time w/o even looking at the o2 sensor. like on cold starts, your car runs for 30 seconds (if obd2) w/o caring about o2. anytime you ride around w/ the MIL on the o2 is takin out of the loop.
to properly diagnose the misfire, you'd need to throw the car on a scanner, ignition scope and 4 gas analyzer, a vacuum gauge wouldn't be bad either.
as for o2 causing a misfire, even if the heater element wire shorts to the o2 signal wire, it still probably wouldn't cause a misfire because the ecu will see its signal voltage (normally .2 ish to 4.9ish) jump up to like 12 volts and immediately the ecu would go over into open loop. even if somehow someway the signal voltage was interupted to create a constant voltage LTFT would compensate. you're misfire is coming from something else. the o2 doesn't cause problems, it reads problems... your car runs all the time w/o even looking at the o2 sensor. like on cold starts, your car runs for 30 seconds (if obd2) w/o caring about o2. anytime you ride around w/ the MIL on the o2 is takin out of the loop.
to properly diagnose the misfire, you'd need to throw the car on a scanner, ignition scope and 4 gas analyzer, a vacuum gauge wouldn't be bad either.
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