Fuel gauge help

[1991SSP]

Can the fuel gauge on a 1998 model be functional without being pinned into the new PCM??? I can't get mine to work at all, I have the purple wire for the gauge and the purple with white stripe from the tank spliced together and the gauge reads past full

[Lextech]

Can the fuel gauge on a 1998 model be functional without being pinned into the new PCM??? I can't get mine to work at all, I have the purple wire for the gauge and the purple with white stripe from the tank spliced together and the gauge reads past full

The 1998 Fuel Gauge is controlled by PWM. Its signal has to come from the PCM. The fuel sender outputs to the PCM and the PCM outputs to the fuel gauge.
Jeff

[1991SSP]

Can you help me out on how I can get it functioning properly???

[Mickeymotormount]

Try this link. It 's a wiring diagram for your truck: Be sure to use the user name and password below the link.
http://arrc.ebscohost.com/searches?c...rument_cluster

USER NAME: student
PASSWORD: watc

[1991SSP]

Try this link. It 's a wiring diagram for your truck: Be sure to use the user name and password below the link.
http://arrc.ebscohost.com/searches?c...rument_cluster

USER NAME: student
PASSWORD: watc

Thanks for the info, I have all the wiring figured out,,, lex answered the reason why I can't get the gauge to work........... now I just need to figure where to pin it on the new PCM

[Lextech]

Thanks for the info, I have all the wiring figured out,,, lex answered the reason why I can't get the gauge to work........... now I just need to figure where to pin it on the new PCM

The Purple wire goes to PCM C2-38. The Purple/White wire goes to PCM C2-54

Jeff

[1991SSP]

thanks jeff!!