Quote Originally Posted by SDGTP99 View Post
I say you wired something up wrong when you put the HUD in and its only now affecting things.
It's just a color for color wiring harness that you splice together, really hard to mess it up especially since I went over it like 10 times.
And what would cause it to work perfectly for weeks and then suddenly start screwing up? Also, it's a head unit, not a HUD, not sure if that affects anything.


Quote Originally Posted by stealthee
C0000 - Vehicle Speed Information Circuit Malfunction
C0175 - TCS Pilot Valve Circuit open
P0174 - System too lean (Bank 2)
I already googled the code meanings, Im just unsure what to think about some of them, especially C0000 and C0175.

p0174... My o2 sensor has been throwing heater codes for a few weeks now, could that be causing it? Bad o2? Or is lean always a vac leak?

I have a few new codes now...
C0000, C0175, and P0174 are gone now, but now I have...

P0040 - P0040 Upstream Oxygen Sensors Swapped From Bank To Bank
P0134 -02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
C0135 - C0135 ABS/TCS system pressure circuit open
P0300 - Random Multiple Misfire

So I guess it's safe to say atleast some of these are saying I need a new upstream o2 sensor... The C codes are losing me and worrying me though...