Quote:
Originally Posted by gonzo
Wow how creepy that you asked. Just a few hours ago popped P0171 for the first time since my original post. Looks like (and sounds) like a leak at the headers. Going to tighten them down and pray I don't need to swap the gasket 
Fuel trims are high at idle and engine braking (20%) and the O2 sensor reads super high voltages when engine braking (dunno if that's normal but doubt it). Everything is normal when cruising and accelerating. Also, the car sounds really loud when you're sitting inside. I feel like this is all pointing to an exhaust leak that has been getting worse over time. I think that if the o2 sensor was dirty/bad I'd see high trims while cruising too, right?
I'll let u know what happens. |
Sorry to hear about that. I'm still trying to wrap my head around this whole concept. ECU programing has always seemed to confuse me.