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Old Jul 28, 2008 | 03:13 PM
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Default Lean Code Help

my car has LT's 3 inch ORY catless, 02 sims, and new plugs and wires. i've had the headers on for a few months and the car ran fine, then it came time for inspection-i had to reinstall my AIR to get the code not to throw (i have the emission style headers). the car passed, but it did show a problem with an 02 sensor. a few days later, the car throws a lean code for bank 1 AND bank 2, and is not running right-the car is shaky at idle, and is surging at light throttle-it seems to run better the more i get into the throttle. it also has backfired a few times on start up. it seems to ping a lot more when the motor is lugging. i checked for any visible vacume leaks and cant find anything. i thought it might be the 02 sensors, but it seems weird that they would both go at the same time ( bank 1 and 2). im going to get the car tuned as soon as i can, but can some one give me some ideas as to what might be going on? i dont know if this is something that can be fixed with a tune. thanks!
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Old Jul 28, 2008 | 05:20 PM
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02's its normal for them to go at the same time. And if they dont its good to replace them both at the same time.
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Old Jul 28, 2008 | 05:46 PM
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car is now throwing P1133, P0300 (random/multiple misfire), P0171(lean bank 1) and P0174(lean bank 2). i popped the hood and revved the motor a little and it sounds like there is a ticking in the driver side head.... which can never be good.
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Old Jul 28, 2008 | 07:53 PM
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bump anyone>?
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Old Jul 28, 2008 | 11:38 PM
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You can usually go somewhere like O'Reilly's and use an OBDII scanner to read live EFI data.

Check the voltage on O2 B1 and B2 S1
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Old Aug 1, 2008 | 01:18 PM
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well, it was all due to an incredibly dirty air filter i think. im the ******* haha.
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Old Aug 5, 2008 | 11:02 PM
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haha i was thinking maybe a mas but atleast you find it.. **** happens
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Old Aug 7, 2008 | 01:27 AM
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funny...i thought a dirty airfilter would make the car run rich because of the lack of air...hmm..interesting, learn some thing new everyday! thanks!
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