Tim Waldo

SO which one do you think I should start with? I forgot to mention a FASS lift pump... which is wired to Key Hot so the lift pump relay has NO load on it... which should I troubleshoot first 0336 or 1690 ?? Thanks Tim ps Glad to see you got the forum up, DTR seems to have died

Ok... just to be clear... new crank and cam sensors are installed....... and what exactly is a hobb switch?

So I've been throwing P0336 error codes since last September.. after I had the Crank sensor replaced... Take it back to the shop that replaced it and had them do a diagnostics on the sensor... this is what they got... P0230 P0336 & The code of the day..... P1690 My lift pump circuit cut out last fall and I bypassed it to be key on powered... My backup light voltage is only 7v (didn't know until I started checking that this is driven from the ECM) I disconnected it. I've read all these posts.... what is this bypass/dummy plug?? Are these the droids I'm looking for?? What should I be doing next?? With the drop in voltage at backup light and loss of lift pump trigger voltage I'm thinking ECM dying... Don't really want to go there.... Thanks, Tim 2000 3500, 5spd, 360k miles, new tranny, Juice w/Attitude but pump not tapped just using the guages