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84 c4 350ci crossfire has no start condition turns over no power to fuel pump jump relay E to D no power to pump jump G ALDL no power to pump most likely theft issue. I would like to know exact location anti theft module and inhibiter relay this is really weird to me. if it cranks then alarm is disarmed still no fuel replaced fuel relay freed up door locks anyone have this issue before
Now I could just jumper fuel pump car would run and if I were to do this most likely from e of fuel pump relay but I would rather not will if I have too Help???
Last edited by rbrown6000; Aug 24, 2025 at 06:57 PM.
Reason: add more
ECM needs reference pulses from the distributor to start firing injectors. You can use WinALDL to check if you have a RPM signal in the ECM. https://winaldl.joby.se/
Thank you exactly as you described. now do you you maybe think EST Electronic Spark control module ? and until I get my OBD1 cable and I do have trouble codes 12
33 respectively thx
Yes, distributor is the first link in the chain.
Do you get spark? Without signal from ECM the distributor will go to "limp home" mode and fire spark anyway.
If no spark then problem is most likley distrubutor related.
If you get spark then it might be fuel related. Power to injectors?
It could also be that ECM does not receive distributor reference pulses and then no fuel pump and no injectors firing.
Thankyou for your help was told before I purchased car oh we replaced FPump I should have known they didn't original pump ok. I replaced fuel pump now still no inj pulse I looked at EST connector buried under dist doesn't look fully seated I will do tomorrow and let you know but now I have fuel too TBI first time also. thx oh I'm sorry I do have spark so you think limp mode boy I hope I have inj driver from ecm you see the car is in a single car storage unit I can't even open rt door and e brake is froze and inj are hot with key on but not crank also
That is probably your main issue! "Start and run" is all in the ignition lock. If you loose power to injectors on "start" position, then you probably also loose power to distributor, ECM and a lot of less important items.
You can measure that on the fuse panel.
For testing you could remove the 15A Turn fuse that is on the same branch from the ignition lock. Use a jumper cable from battery power to the feeding side of that removed fuse socket.
Try starting ... and you need to remove jumper cable to shut engine off if it starts.
Thankyou you know I have a brand new delco ign sw at the house been looking for 3 days I would have got around to this I will replace it tomm let you know how it goes thanks
today replaced ign switch every thing is ok except no power to inj still no power to fuel pump dist pack connector was half locked fine now still can't get to ecm or fuses any other suggestions of course would help
today replaced ign switch every thing is ok except no power to inj still no power to fuel pump dist pack connector was half locked fine now still can't get to ecm or fuses any other suggestions of course would help
there's two 3 amp fuses in fuse box for injectors. the ECM is on passenger side. remove panel underside of dash. fuses are on passenger side of dash. have to open door
Oh my day yesterday I was able to assume ign module not firing inj no problem. listen to this before tow turned over great flat bed tow driver cable winched me on bed no under carriage damage then I find out he strapped my wheels down no problem towed 21 miles with car in park now can't even turn over with breaker bar at crank bolt what eng trans damage could he have done towing in park. help any idea
Oh my day yesterday I was able to assume ign module not firing inj no problem.
Ok
Originally Posted by rbrown6000
listen to this before tow turned over great flat bed tow driver cable winched me on bed no under carriage damage
Ok, did he winch you on the bed in park or some other gear. If winching in park you put a lot of stress on the parking mechanism and the wheels should be skidding. If the rear wheels start turning in park then the parkong mechanism is damaged. As long as the wheels are skidding in park there should not be any damage.
Originally Posted by rbrown6000
then I find out he strapped my wheels down no problem towed 21 miles with car in park
Strapping the wheels down to the bed is normal. Transmission in park is not a problem.
Towing with rear wheels on the ground in neutral, or any gear, will hurt the transmission, because transmission oil pump is not providing any lobracation to the moving parts. But in this case all wheels were on the bed, right?
Originally Posted by rbrown6000
now can't even turn over with breaker bar at crank bolt what eng trans damage could he have done towing in park. help any idea
Very strange. Even if parking mechanism in transmission is broken, engine should not be locked because of that.
Remove all spark plugs and check if you got hydrolock from coolant or fuel.
Crossfire
