P0030 x2
07-13-2014, 02:54 PM
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P0030 x2
Here is the story. 2002 c5 6spd. Xs power Lt's and exhuast. Haltech intake. (When installig the Lt's i had to replace the drivers a/f as the oem broke. I replaced it with a denso unit.)Got tuned by chuck cow literally right after i finished the install.Car ran great for 2 weeks(probably less than 150 miles) . Then the car threw a p0030. A/f bank 1 sensor 1. I change it out thinking maybe the new a/f was a bad unit. Clear the code run it for about 60 miles.( over the period of 2 weeks) light comes back on for same thing p0030 b1 s1. So now im a little dumbfounded. Is it possible the tune is lean and burning out that o2? Or maybe i need to use an oem unit? Or could it be another bad sensor( slim chance) any advice or ideas would be great.
Last edited by LMFD296; 07-13-2014 at 02:56 PM.
07-15-2014, 09:18 PM
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St. Jude Donor '13-'14-'15
P0300 is a "random misfire "code Very common with LT's
1st find out if the code is in fact "REAL" or "FALSE"
On a real P0300 code you can hear or feel the misfire in the engine--
On a FALSE code the engine runs perfect but still throws the code
LT's create false misfire codes---Correctable with tuning by:
Turning OFF the misfire tests in the diagnostics part of your tune by maximizing or minimizing the Parameters AND Maxing out the individual misfire tables
1st find out if the code is in fact "REAL" or "FALSE"
On a real P0300 code you can hear or feel the misfire in the engine--
On a FALSE code the engine runs perfect but still throws the code
LT's create false misfire codes---Correctable with tuning by:
Turning OFF the misfire tests in the diagnostics part of your tune by maximizing or minimizing the Parameters AND Maxing out the individual misfire tables