September 16, 20205 yr Hi can anyone help me I have a 1994 wrx that had been decatted I have since fitted a 200cpi sports cat and its still failing the emissions for the mot any help would be grateful my car is a wrx 1994 gc8 jdm import thanks
September 17, 20205 yr Do you know if it was mapped with the previous decat fitted and has it got any other breathing mods (cone filter ,fmic ect ) ? Sports cats do sometimes need a bit of heat in them to pass , if it was mot'd when cold ? You could try getting them to re test it when it's hot. Failing that you could try a ECU reset and see if that helps reduce the emissions. There's a sticky how 2 self read and reset classic ecus in the tech section
September 18, 20205 yr Author Yes it has an apexi cone filter and I believe it has been remapped with a z4 ecu. is it easy to reset the ecu?
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