p0139
Mar 19, 2011, 06:59 PM
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p0139
What is the difference between p0300 and p0139 code?? I have no cat and I use to get the p0300 code before but I got the p0139 tonite after putting in HKS 272 cams.
Mar 20, 2011, 11:22 AM
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p0300 is a random misfire code, p0139 if i remember right is an 02 sensor code, either its on its way out, or you have an exhaust leak around there. Or your fuel trims are out of wack. check with computer for 02 sensor switching. Smoke test for exhaust leak. Check with ecuflash or mitsulogger etc to see what your trims are at
good luck
good luck
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