Error Code P0402 - Pre Cat missing. Warpspeed Y-pipe
#1
Error Code P0402 - Pre Cat missing. Warpspeed Y-pipe
I need some help here, Today my "check engine light" beamed on. I took my car to the Nissan dealer and the computer came up with an error code P0402 (pre-cat is missing). I have a Warpspeed aftermarket Y-pipe and of course it doesn't have a Pre-cat installed for last 3 1/2 years with no problems till now. what are my options. I do not want to convert my car back to the stock Y-pipe (Nissan suggestion). the technican thinks my main catalytic converter might be bad and can no longer handle the load without a pre-cat installed. also my car needs an inspections in a few weeks..................I need an solution to this problem.
#9
I don't know much about CELs. I am just going buy the Haynes manual. The mistake 0402 code you gave eariler was the CEL code, not the scan tool trouble code listed next to it in Haynes. As I said there is no CEl 0420 code, just a scan tool trouble code.
Perhaps they have misread the code.
Perhaps they have misread the code.
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lrb6805
4th Generation Maxima (1995-1999)
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09-17-2015 04:49 PM