Check out these scantool readings for my MAF. Bad?
#16
Re: Check out these scantool readings for my MAF. Bad?
Originally Posted by 92blue
In addition, there is no code for a baf MAF sensor. The only thing that codes say is that there is an unusual situation causing a problem. Codes are helpful in diagnosing and tracking down the source of a problem. It does not mean, that the MAF is bad, the ecm has no way of knowing that.
Last edited by RedIrocZ-28; 09-08-2005 at 12:45 AM.
#17
Re: Check out these scantool readings for my MAF. Bad?
I agree that those MAF readings are crazy. The 1036 I don't see how its possible. Maybe a problem with the scanner? There are only 8 bits used to represent the amount of air being drawn in, which allows a maximum of 255 gr/sec. Suppose that the MAF is reporting those 254 he mentioned. That would cause a rich condition, to the point the engine would stall. What he has is a lean condition however. I don't see how the scanner is showing the correct readings, atleast with respect to the MAF.
#19
Re: Check out these scantool readings for my MAF. Bad?
Originally Posted by 2fbodies2NV
Umm, no. If you set the TPS at CLOSED THROTTLE, NOT IDLE, it doesn't matter if you set it before you bolt the throttle body on. It will not change.
Second, the minimum idle air screw changes the position of closed throttle. That means that adjusting the minimum idle air screw will change the setting of the TPS.
#21
Re: Check out these scantool readings for my MAF. Bad?
Originally Posted by 2fbodies2NV
According to the Modus (Snap-On) and Genysis (OTC) you set the TPS with key on/ engine off.
#23
Re: Check out these scantool readings for my MAF. Bad?
Originally Posted by 2fbodies2NV
If the engine is OFF, I guess it isn't going to idle very well is it?
#24
Re: Check out these scantool readings for my MAF. Bad?
Ok guys, the original thread starter is here. lol. I have been reading you guys' post the last few days but havent had much time to do anything to my car. I just started a new job, so it's the least of my worries, and I have a fall back vehicle for now. I am gonna do some stuff to it this weekend. I am gonna set the min air first, then the TPS. I got nothing to lose. Im gonna once again check for vacuum leaks, even though I could'nt find any before. Im gonna go through wiring, and check grounds. Yada Yada Yada. Wish me luck!
#25
Re: Check out these scantool readings for my MAF. Bad?
Ok im outside messing with it right now, and i hooked up the scanner again and i never cared to notice before, but its saying my car was ranging from going 24mph to 127 while in park! It wont idle on its won with the Maf unplugged either. Between pins B and E on the MAF connector, I get O.L on my multimeter. This is not looking good, broken wire somewhere perhaps? Bad ground?
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