Reliable ECU/PCM Distributor
04-12-2019, 10:35 AM
#1
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Reliable ECU/PCM Distributor
Looking for a good reputable ECU/PCM distributor. Suggestions? Thanks! Part No. 56041801AG
04-12-2019, 10:56 AM
#2
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Join Date: Dec 2015
Location: PA
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Year: 1997
Model: Cherokee
Engine: 4.0L
I never needed the service, so i cant thelp there. Whats wrong with the vehicle, and how did you come to the conclusion it needs a new PCM?
Last edited by fb97xj1; 04-12-2019 at 08:42 PM.
04-12-2019, 03:55 PM
#3
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Ive replaced the Crank PS and Cam PS, the gauges are doing silly chit ie; speedo on idle and in park going from 0 to 100 and back & oil pressure gauge maxxed out while driving, upon scanning the PCM is commonly the culprit on three occasions. Pulled the PCM off the firewall and will run decent but the CEL will flash, idle will surge and then the CEL will disappear and idel smooth. Something is amiss and I'm guessing the PCM is a mess.
04-12-2019, 05:16 PM
#4
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Location: Groton, MA
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Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
Ive replaced the Crank PS and Cam PS, the gauges are doing silly chit ie; speedo on idle and in park going from 0 to 100 and back & oil pressure gauge maxxed out while driving, upon scanning the PCM is commonly the culprit on three occasions. Pulled the PCM off the firewall and will run decent but the CEL will flash, idle will surge and then the CEL will disappear and idel smooth. Something is amiss and I'm guessing the PCM is a mess.
I'd definitely read the CEL codes and do a thorough grounds cleaning, connector to the instrument cluster cleaning and check for pinched or chaffed wires or bad connectors before loading a $200+ part into the parts cannon!
04-12-2019, 05:17 PM
#5
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Location: Groton, MA
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Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
Or at least hit the local junkyard and see if you can find a matching part number and see if they'll let you check it in the parking lot before buying.
04-13-2019, 11:35 AM
#6
Junior Member
Thread Starter
Have you done the prerequisite grounds and connector cleaning?? The oil pressure gauge will peg out if grounded fully - usually the wire got chaffed.
I'd definitely read the CEL codes and do a thorough grounds cleaning, connector to the instrument cluster cleaning and check for pinched or chaffed wires or bad connectors before loading a $200+ part into the parts cannon!
I'd definitely read the CEL codes and do a thorough grounds cleaning, connector to the instrument cluster cleaning and check for pinched or chaffed wires or bad connectors before loading a $200+ part into the parts cannon!
04-13-2019, 04:56 PM
#7
CF Veteran
There aren't any remans that are reliable. However I did stumble across some factory stuff from Cardone last night about troubleshooting PCM issues. If you look up an ECM, NOT a pcm, on rockauto, click the cardone ones, ($200 ish vs 800 for Mopar remans) you will see a link for these bulletins . Good read.
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