My mechanic says it would. He also said blm's can be affected by outside temperature, even the gasoline. So this leads into the following problem- I'm trying to get blm's down to 128. I have a stock cam. I adjusted the tps to .42 (from .40) at idle and that brought blm down to 135 from 138. Then I added 10% fuel at idle, in translator, and that brought it down to 128. I thought I had it licked.....drove around about 10 miles, blm went back to 138. Integrator is right around 128-133. Also, mechanic had smoked the car and said the only leak was at the throttle body shaft seal, which he repaired with a new seal. I'm thinking of having him smoke it again, only maybe spending a little more time on it this time. I don't know how long he spent on it last time but I suspect it wasn't long enough. What do you guys think? there must be a vacuum leak, right? Maybe it's leaking behind the climate control in the dash and he didn't check inside the car.