Problem was at the charcoal canister. It was pretty much empty and probably had a messed up solenoid since there was no cv installed on the vac line. One BIG vac leak right out the bottom of it. Replaced with another that I found I had sitting around. Installed a good cv after testing it with mityvac. Now BLMs are no longer high 140s at idle but fell way down to the low to mid teens. No higher than 117.
Ive tried lowering FP, but no difference. Got the fp at 40 static now. Had it down to 37-38 also.
Have always had a ATR brass cv inline with the GM pcv valve (like the instructions showed to do). I know guys have looked this direction for high BLM issues, but what about low BLM #s? Should try a new GM pcv valve, with and/or without the ATR cv?
Or try switching 3" MAFs. Maybe even throw on a known good stock MAF (I think I have one around) and see what happens? OR should I just switch the MAF translator to 10% lean at idle?
Ive tried lowering FP, but no difference. Got the fp at 40 static now. Had it down to 37-38 also.
Have always had a ATR brass cv inline with the GM pcv valve (like the instructions showed to do). I know guys have looked this direction for high BLM issues, but what about low BLM #s? Should try a new GM pcv valve, with and/or without the ATR cv?
Or try switching 3" MAFs. Maybe even throw on a known good stock MAF (I think I have one around) and see what happens? OR should I just switch the MAF translator to 10% lean at idle?