Quote:
Originally Posted by Scharbag
So I chased this problem for a while. I replaced the following that did nothing:
Plugs (old ones had 20K km on them)
Low pressure fuel sensor (by strut tower)
Rear O2s (did not mean to, one was stripped when I inspected them)
Injectors (used but flow calibrated)
None of the above helped.
Recently, I bought a new RKP x-pipe. I thought, what the hell, lets change out the front O2 sensors when installing the x-pipe. So that is what I did.
Nothing is for sure yet, but initial results are positive that the pre-det issue is greatly reduced. Also, I seem to be getting much better gas mileage (same kind of driving - if not more aggressive) on the first full tank of fuel that I have run with the new O2 sensors and x-pipe. I typically average 23L/100km (it is terrible). Last fill was 20L/100km and half the kms were with the new x-pipe and, well, aggressive driving to test  This current tank seems to be using a lot less fuel than it has been. Here is hoping that, along with the pre-det issues going away, that I also get better mileage 
Cheers, |
Rear O2s were for monitoring anyways, PreCAT were the ones to inspect