camochevy21

Well now I have a new MAF but when I was trying to clean it I was just using that MAF cleaner from the auto parts store. I've heard you can use carb cleaner but I've also heard that is too harsh on the sensors.

wtftalon

u could get a scanner an do a data log an look at that...post it up if u get a chance an i may be able to help ya with that.

camochevy21

Sounds good, I appreciate it. It might be awhile though cause I'm working up in the sticks of Minnesota so it might be some time but I'll keep it in mind.

04BlackGmc

iTrader: (18)

well i logged the truck yesterday LTFT and STFT were outta control +25 LTFT and +20to +50 STFT....reset them to see what the truck would do didnt even wanna idle or run until they went way positive again..

o2's would flat line one in a while lean..and just sit there..so there is a lean condition.

told him to buy 2 front o2's and we will go from there gonna log it tommmrow and look at the LTFT and check for vacuum leaks at the manifold and around.

might be a good thing jas to throw a FF on it to while we are at just for ***** and grins if u havent changed it lately..

camochevy21

Got one in my toolbox.

budhayes3

iTrader: (19)

I'd check for vacuum leaks, air leaks at the intake tube, and check fuel pressure with a manual gauge.

camochevy21

All over with . . . hopefully. New o2s and the PCV wasn't plugged in. Hopefully it stays like it should be from now on.

Mort

PCV not plugged into the valve cover? That is a big vacuum leak!

04BlackGmc

iTrader: (18)

yep after 20mins of driving and resetting the fuel trims a few times all was good

1slowsilverado

iTrader: (1)

Good to read you got her all fixed. Good way to diag this in the furture would be to log STFT and spray some carb clean brake clean etc around intake and all over until STFT go -.. there is your leak. Most engines will through lean codes around +15