I have a slight fuel guage prob here. When the car is in park or neutral the fuel guage will bounce around untill it finds the right level. In all drive gears the fuel guage is WAY off. it just kinda climbs untill it says it is almost full but ITS NOT. Have you guys had this problem before. I guess I really need to know what module sends the signal to the guage. I was thinking the PCM but im a Chrysler tech and dont know that much about the GM system. If possible where could I get a wiring diagram for this car??

 

the wiring digrams are in the Hayes manual,

but 99% of the time you have to replace the sending unit in the fuel tank, if its getting suck on F, or just not reading correctly

 

Thats what I was thinking also. It was just kinda weird that the guage reads right when its in park or neutral and reads wrong in reverse or all forward gears. It will be stuck on F in drive then I stick it in neutral and goto half a tank.

 

yep mine with mine im running about gas at the 1/8 tank mark now