Mot emissions high, 1 cat or 2 needed???
#1
Mot emissions high, 1 cat or 2 needed???
Hi I have a 95 impreza uk with wrx running gear, this is its first mot with me and it failed on emission co 0.80 fast idle and 0.50 on idle, my question is simple should it have one or 2 cats fitted ?I t has a straight though front pipe in with no cat, the only cat it has is in the center box. Is this my problem or should it pass with 1 cat fitted? i have tried it with cat cleaner and got it hot but makes no difference.
Please help
Regards
Paul
Please help
Regards
Paul
#3
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hi mate i also have a uk spec 96 full decat ,i only need to put the mid cat on for the mot and it passes every time like the other guy said take it out for a run before you get to the garage to get the cat hot and up to temp if it still fails at that then its somthing else wrong like the lamda sensor
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