P Codes

[Ryan Singh]

Hey guys,

I need help once again.

I have a 96 Talon TSI AWD and my damn check engine light is on. I had my uncle scan it, and this is the code I get:

Code P0170
Fuel Trim Malfunction
Bank 1

Now I think that this is an 02 sensor, but what I don't know is if it is the one before or after the cat.

I need to know as soon as possible because we have this aire care thing here that you have to do beofre renewing insurance...I have one day left.

Please help me out guys!

Thanks in advance,
Ryan

[John Hartman]

on the OBDII cars that I work on, (GM) there are distinct codes for O2 sensors.  P1403 or something, I forget, but a fuel trim malfuntion would have its own code.

Not saying its not, but make sure you get the correct code for it.

Quick google gave me the idea that it is a fuel injection system fault.  GM, Ford and some others give it as yours does a fuel trim malfunction.

some Japanese cars list it as the same idea, but call it a fuel injection malfunction.

Could definately be caused by a bad O2 sensor, but it could be other sensors too, say a MAF?

Could be a bad injector, bad ECU, bad battery/alternator, or even something as simple as a corroded connector or bad ground.

Sorry I couldn't narrow it down more, but its hard when your not looking at the veh.