Ive put a Jetex exhaust system on my car and new catalytic converter. Since they have been fitted the revs seem to go from nearly stalling at 500 to 750 revving fine. Also sometimes the engine management light has come one a few times until u put ur foot down then it goes! I have cleaned the inlet out and still the Lproblem persists
Any ideas? Does the car not like the exhaust as it’s a slightly bigger bore? or is there a bigger problem on the horizons meaning a big wallet is needed! ?
Really need your help to fix it!