Ok here whats going on. Working on a 98 T/A Now for some reason the maff does not work at all, codes are throwing and on my Tech 2 is doesn't move. I swapped maffs for working one and no difference. It has 5 volts to the plug, signal wire from the plug to the ECU is good, and soo is the ground. I don't know what i am missing here.

Now here is the weird part. If i have the key on engine off, and pull up my tech 2 and look at the TSP %. Ok now as soon as i touch the gas and hit 1% the LTFT bank 1 goes from 0 to +25 with the engine off?? How is the possible? lol

Anyone have a logical explanation for that one.

 

If it's P0102 I'd check the engine sensor fuse.

 

Thanks, i'll check that when i get home.

 

Ok it was the P0102 code, checked the fuse and it was blow. Replaced and the maff is fixed now.

But i have still having the LTFT issues. I will even go to +25 when running in cell 22
At idle its fine at 0 on cold start up and in cell 20. I haven't check it after its warmed up yet. Getting ready too.