Hi, yes, I'm still waiting for somebody to help me.

Thanks!

Please continue searching

Yesterday afternoon I disconnected the car battery for an hour. After reconnecting it, the "check engine" light is gone for now, but the engine performance has not improved much. The stuttering appears to get more pronounced when the engine is fully warmed up, so that would be consistent with flooding (rather than fuel starvation). On the other hand, on Saturday (before check engine light was reset), when I was manoeuvring inside of an underground garage, I could smell nitrogen oxide, which, as I understand, tends to indicate burn that’s too lean.

Since resetting the computer, I’ve driven about 80 miles (gently, keeping the turbo indicator in the bottom 60% of its range, as engine starts twitching when I get close to the red section) and the check engine light has not come back yet, but I guess it should come back soon?

BTW, I only saw check engine light blinking once, and only for a few seconds when I tried to accelerate hard on Thursday.

So the questions now:

1. Does the above information change your diagnosis?


2. If your diagnosis is right, how difficult is it likely to fix it? Is it something as simple tightening a hose, or does it involve replacing a part or something more complex? Is this the kind of problem that a reasonably skilled DIYer would be able to fix?


3. If a scan tool were connected now, would it be able to access the error code from yesterday, or does it forget the error code if the battery is disconnected?