While driving in a somewhat spirited manner back up the valley from the museum, I got a CEL. At our next rest stop, van who has a DDM stage 3 06 said he got a CEL at the same time. Both his and mine were for lean condition. He offered to reset mine with his tuner... The correct answer should have been no... Because in the past when I have cleared a code, the ECM has lost it's mind. Well it did this time as well.
It would not idle below 2000 RPM , and while running down off the mountain in 40 degree conditions, it was indicating 217 . And running like crap.
After coming back down, it threw another CEL and thrn went into limp mode. I started looking for a place to stop when it shut down. I was kind of busy but it said engine off for safety ....well led the code and it was something about the MAF temp reading did not match the temp senser. And it was dead...
We reset the code with the dash hawk and it started but with no idle and low power. Not limp mode just running like crap
We motored off for about a block when it went into limp mode then shut off.
I pulled the positive terminal for ten seconds, rebooted the car and it is immediately back to running great!
Tuning is so much fun.
The lesson for me is do not reset minor error codes while on the road with your wife in the car.