FWIW, I got the second code after my stock header cracked at the weld below the pre-cat and was leaking badly.
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Thanks I haven't got under the car to check for leaks yet. The check engine light came on a few days ago. I didn't have time to check it at the time, after a few trips it went out. The CEL came back on tonight. The car was cold and I had only gone a few miles, as soon as on got on the highway it came on again.
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Check the wiring to the O2 Sensors to make sure they are not rubbing on the header or heat shielding.
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Has the code/s come back? Are you running w/o a cat?
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Tummi_Gummi New Member
im without a cat. and having same issues. At first it was cat effeciency code and p0130 o2 sensor circuit(bank 1 sensor 1). I put an L spacer in my 2nd o2 sensor to clear out the effeciency code and now i have p0130 still and a p2270 o2 sensor signal stuck lean bank 1 sensor 2
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Tummi_Gummi New Member
Any help?