Ricky belton Posted September 16, 2020 Share Posted September 16, 2020 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 Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted September 17, 2020 Share Posted September 17, 2020 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 Quote Link to comment Share on other sites More sharing options...
Ricky belton Posted September 18, 2020 Author Share Posted September 18, 2020 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? Quote Link to comment Share on other sites More sharing options...
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