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Engine Light Not going out! Help


swabster3000

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Hi Guys I need help! I have had an engine management light on now for weeks, Ill start at the beginning, my 350 is decatted, but I have had it for 2 years without any problems, the light appeared out of the blue so I had it diagnosed which came up with - Engine code p0037 h02 htr bank 1. I have been told different things by different people and have tried fitting 'o2 spacers' on the after cat sensors, didn't work, so I had the after cat passenger side o2 sensor replaced as I was told it was that... didn't work. Both times the light is turned out and then comes back on within half an hour but not straight away... I am now totally sick of it and my last resort is to find some cats and have them put back on which will cost me a bomb. Anyone have any other suggestions before I cat my car back together and hope that fixes it...?

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