First I will share I have a new lift pump and TPPS and crank sensor. this truck has the modifyed relay installed a few years ago. Today I had time so I put a test light to the Red and Green wire key on power source for the FP relay and also powers the VP 44 pump as far as I understand. When the engine is cycling off the power to the red/green wire goes away. there are no codes present at this time Adding short video. I'll add its a 1999 2500 with auto
First I will share I have a new lift pump and TPPS and crank sensor. this truck has the modifyed relay installed a few years ago. Today I had time so I put a test light to the Red and Green wire key on power source for the FP relay and also powers the VP 44 pump as far as I understand. When the engine is cycling off the power to the red/green wire goes away. there are no codes present at this time Adding short video. I'll add its a 1999 2500 with auto
Thanks for any help.
Edited by JoeHarlan80