Running Rich

kreil45 · December 28th, 2007, 08:14 PM

freind has an 03 cobra goes back and forth from lean to rich. replaced the o2 sensors closes to the engine. still does it. he has a dino tuned wide band gauge that measures it. any thoughts?

Trick Tuners · December 28th, 2007, 09:24 PM

Please describe the problem a little better. At idle, at wot?? From what to what?

Doc8224 · December 28th, 2007, 09:52 PM

Originally Posted by kreil45

freind has an 03 cobra goes back and forth from lean to rich. replaced the o2 sensors closes to the engine. still does it. he has a dino tuned wide band gauge that measures it. any thoughts?

Does he have the wide band sensor as well or just the gauge?

kreil45 · December 31st, 2007, 10:05 AM

yes he has a wide band sensor and it does it constantly

cliffyk · December 31st, 2007, 02:42 PM

Has the WB sensor and controller/gauge been calibrated?

Is the heater connected and working?

If changing the front narrowband sensors made no difference or very little difference then I'd suspect the accuracy of the WB system next...

December 28th, 2007, 08:14 PM	#1
kreil45 Regular 94 Mustang GT Join Date: Oct 2006 Location: Tallahassee,FL Posts: 212 iTrader: 0 reviews	Running Rich freind has an 03 cobra goes back and forth from lean to rich. replaced the o2 sensors closes to the engine. still does it. he has a dino tuned wide band gauge that measures it. any thoughts?

December 28th, 2007, 09:24 PM	#2
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,467 iTrader: 3 reviews	Please describe the problem a little better. At idle, at wot?? From what to what? __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

December 31st, 2007, 02:42 PM	#5
cliffyk Hardcore Enthusiast Join Date: Feb 2007 Location: Saint Augustine, FL Posts: 1,807 iTrader: 1 reviews	Has the WB sensor and controller/gauge been calibrated? Is the heater connected and working? If changing the front narrowband sensors made no difference or very little difference then I'd suspect the accuracy of the WB system next... __________________ -cliff knight- My Mustang 2003 GT, UPR X, 24lb/h injectors, Magnaflow, 180° stat, PP 70mm TB & plenum, DF Commando, Steeda UDPs, Ralco RZ_flywheel, RAM HDX clutch, WX EFX COPs 3.73s, 262 rwHP/305 lb-ft. Flex-fuel: burns gas and rubber...

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December 31st, 2007, 10:05 AM	#4
kreil45 Regular 94 Mustang GT Join Date: Oct 2006 Location: Tallahassee,FL Posts: 212 iTrader: 0 reviews	yes he has a wide band sensor and it does it constantly

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