Fault code?

redzed · 09-08-13, 10:37 AM

what fault code is p0420? is this the lamda sensor which goes after the cat or one of the ones before?

andys1981 · 09-08-13, 10:42 AM

in my wee scanner book its saying
catalist efficiency below threshold (bank 1)

MG ZS STE · 09-08-13, 11:56 AM

When i had this it was the post cat sensor. But for me its wasnt faulty, it was because i have a sports cat fitted. The mil eliminator kit sorted it for me. As i recall that was the reason i joined themgzs.co.uk as jayi-+zs was doing a discount on them when you joined.

Fred68 · 10-08-13, 07:46 AM

Quote:

Originally Posted by redzed

what fault code is p0420? is this the lamda sensor which goes after the cat or one of the ones before?

Post cat O2 sensor. Does it have the cat fitted?

redzed · 10-08-13, 08:05 AM

currently ive got a full janspeed system with no cat, recently added the manifolds and wanted to see if that fault code was due to those frist two as i was worried i had damaged them.