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What is your question?
i have a 1994 concord i have replaced the crank sensor and the cam sensor and the fuel pump and the coil pack and it still will not start i have no spark at the coil what else do i have to check and is there a way to bypass the auto shut down
3 Replies
Check 10A fuse #18, and 20A fuse B, they power the Auto Shut Down (ASD) relay. If OK, continue. if not, replace the fuses and continue. The ignition coil pack gets power on the DkGrn/Orn wire at the connector. If it isn't getting power when the key is on, then I'd suspect the ASD relay. the relay should click when energized. The Blk, Red and Wht wires are the signal wires from the Powertrain Control Module (PCM). Be extremely careful about checking these wires for signal (if do you check them) because if you short or overload these circuits you will damage the PCM and create big trouble for yourself. Myself, I'd suspect the ASD relay for the lack of spark. If the ASD relay is powered, and tests good, using a high-impedance meter, check the PCM outputs to the coil pack, but only then. Check 20A fuse A, it powers the fuel pump. You should be able to hear fuel pump operate for about a second when you turn the key to RUN. Check fuel pressure if pump runs. If not, check for power and ground (for about 1 second at the pump when your assistant turns the key to RUN. If it runs, fuel pressure should be around 50 PSI. If you're thinking about an inertial fuel cut=off switch, like a Ford, there isn't one. If you're thinking about 'bypassing' the ASD relay, I wouldn't recommend it, too risky to the PCM. It would be cheap insurance to get a new ASD relay and put it in., and it might fix the car. BTW, if the ASD has failed, you won't get any injector pulse, either.
I have a 95 Chrysler Concorde that defeat the body control module keeps dying on and it does that it won't let it start it doesn't automatic shutdown and you really have to take it to a dealer but you can buy a body control module replace it fairly easily
I Chrysler Concorde did the same thing it end up being the body module bad
i took one of the other relays from a differnt place it was the starter relay and swapped them and the starter worked but still no spark or fuel my CHECK ENGINE light will not give a code at all so i'm at my wits end and do not know where to go from there
i looked at all of the fuses and they are good i'm not hearing a click when i turn on the ingnition. from the relay at all and my radiator fans are not on either the only thing that is working correct is everything but the fuel pump and no spark
I have the same problem, did you ever figured it out?