Sam1989
Registered User
hiya, was just wondering if anybody had any experience with clogged pre-cats?
Long story short, s4 had an intermittent misfire. Not sure for how long, I recently baught it. Anyways, fault coded it found the 2 injectors and replaced. All well since. Took for a good drive for the first time in a while and about an hour in after everything was pretty hot had the same feeling of a misfire but only under load. Felt fine at low revs and low speed but if you put your foot down you could just feel it.
Plugged it in and no fault codes. No engine check light.
Wondered what the chances of the pre cats being damaged is from previous misfire? Sorry for the long winded post!!
Long story short, s4 had an intermittent misfire. Not sure for how long, I recently baught it. Anyways, fault coded it found the 2 injectors and replaced. All well since. Took for a good drive for the first time in a while and about an hour in after everything was pretty hot had the same feeling of a misfire but only under load. Felt fine at low revs and low speed but if you put your foot down you could just feel it.
Plugged it in and no fault codes. No engine check light.
Wondered what the chances of the pre cats being damaged is from previous misfire? Sorry for the long winded post!!