Service engine soon

cd001111 · #1 (**permalink**) 07-20-2007, 04:30 PM

Hi all
I have an 04 350z with the APS single turbo, APS (off road) dual exhaust, APS down pipes and the Tall Boy. After driving 1000 trouble free miles I installed the APS SG package. The car isn't used that much I now have 5200 miles on the car at this point. From out of no place the "Service engine soon" light popped on. I checked the stock ECU and it pointed me to the Air/fuel meter, I reset the computer but it came back on within a few miles of driving. I took the car to Nissan where it was checked out and determined not to be the Stock A/F meter. The DCT results for A/F sensor (B1) "P1273" with B2 putting out a code of "P1283". Nissan has no idea what's up and dosn't want to deal with it due to the mods. Any input you guys could provide would be very helpfull, I wish APS would responded to e-mail.

Thanks
CD

Red Lion · #2 (**permalink**) 07-20-2007, 07:28 PM

oxygen sensor? Unless the air/fuel sensor you're talking about is the o2 sensor.

cd001111 · #3 (**permalink**) 08-12-2007, 02:11 AM

The 2 upper oxygen sensors were Replaced, the car seems to be OK I've driven it over 100 miles and it's fine.

CD