HI guys..My 1992 b350,went dead..(last year pre-magnum for 5.9),just cranks..eng. light flickers and clicks like a machine gun...I traced a click to the asd relay, replaced it..she starts..later she dies again randomly could be 10 min. or an hour..sometimes I can pump the hell out of it and she'll start..thought fuel pump..but I am getting plenty of fuel when no start occurs..no ign..thinking maybe the ecm is bad..what do you think. there's a new coil,asd relay,dist. pickup...gettin me angry..Thanks
Dodgevanman
04-06-2006, 08:17 AM
Could be a bad ECM or bad grounds.
bocephus
04-06-2006, 09:01 PM
Yeah I've checked all connections/links..already.I will replace the ecm.....Thanks.What is the average life expectancy of the ecm anyway?
Dodgevanman
04-07-2006, 07:09 AM
Technically they're supposed to last indenfinitely, but ECM's are just like any other computer they just burn out sometimes.
bocephus
04-07-2006, 03:37 PM
HA HA..technically..like technically,according to my dodge dealer manual, the cat is supposed to last the life of the vehicle !!..Thanks
Chump
04-17-2006, 12:35 AM
http://dodgeram.info/tsb/1992/18-04-92.htm
bocephus
04-17-2006, 10:39 AM
thanks..but there is no crank position sensor on a 92 5.9...the 5.9 didn't go magnum until 93..because of this there is some confusion in repair manuals
Chump
04-17-2006, 11:48 AM
I would swap in another computer. You might find a used one but it might also have problems. www.car-part.com
Depending on the part# of the one you have, you may be able to find a rebuilt one but from what I see, some of the computers listed to your van are only available if you remove yours and send it in to be rebuilt.
What's the part number on your computer?
bocephus
04-17-2006, 10:00 PM
thanks..number on mine is 5602 7158....will the diag. scan detect a bad ecm ?
Dodgevanman
04-17-2006, 10:39 PM
Sometimes a bad ECM will not communicate with a scanner.
bocephus
04-17-2006, 10:43 PM
yeah I was afraid of that...guess I'll just install a rebuilt ecm, and hope I don't get stranded..It's ironic.. I have both a new ford and a new chev. van both 1 tons, but I rather be in my old dodge any day of the week
Chump
04-18-2006, 12:43 AM
As Dodgevanman points out, it may not communicate. I have only heard of a few early vintage Chrysler computers that actually posted a controller failure error that could be scanned. Most normally a driver circuit goes out or capaciters might leak and cause board damage. This is OBD1 diagnostics which WAS state of the art, when art was old! The error codes were generic in nature and indicated a complete circuit that might be causing a problem, it is the job of the tech to eliminate all of the hardware in that circuit and if it's ok, then replace the computer.
w/RNS High Altitude Emissions w/OEM #56027158
Rebuild part# 79-7158(A1 Cardone Rebuilder)
Rebuild part# NEC XTP97158(NAPA)
www.rockauto.com might be your cheapest route after all is said and done.
