Tim Waldo

Thank you for the clarification... whats the best way to access the ECM then? from top or bottom? I'm going to clean up that area of the engine and dig a bit deeper into everything on Monday.... Yeah... I put off tapping the pump and one day the mood just hit me.... I instantly regretted it... I don't really think that is my issue but if everything else checks out I may have to dig a bit deeper into that one wire.... and if I do get the urge to tap the pump again.. it WILL be with a stealth plate... not that I really need the extra power, but the MPG boost might be worth it. Tim

Ok... Tried to look today... My ECM has 3 30 pin connectors.... had the FPCM connector off, found the dark green wire... could not get it to test to anything on any of the ECM plugs...all the wires looked.... ok... your document referred to an ecm in front of the lift pump.... I found something there but couldn't see any connectors to it... Which is my ECM?? While I was looking around, I did notice the two wires referenced when I installed my Edge Juice.... I did last year try to tap the wire but failed... could I have damaged one of those wires... if so can I replace it? They looked ok... but who really knows if I punctured the sheath and there is corrosion on the wire now... Thanks, Tim

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