Still struggling to get my '98 2.5 TJ started.
To update, bought car with no PCM ordered one from US ,plug and play, no skim and programmed to my vin, when it arrived plugged in and car started and died after a couple of seconds, after about a dozen attempts it wouldn't start at all, cranked fine but no go, discovered if I sprayed fuel into throttle body car would start and run as long as I sprayed fuel, plenty of pressure in the fuel rail and injectors work if I ground the PCM side.
Brilliantly the guy from US sent me another PCM but exactly the same has happened, it seems as if the injector drivers in the pcm have failed, checked for shorts in the loom, 5v rail is good, how could the car 'kill' 2 pcm's
Bypassed the ASD relay made no difference
No check engine lamp, no fault codes
To update, bought car with no PCM ordered one from US ,plug and play, no skim and programmed to my vin, when it arrived plugged in and car started and died after a couple of seconds, after about a dozen attempts it wouldn't start at all, cranked fine but no go, discovered if I sprayed fuel into throttle body car would start and run as long as I sprayed fuel, plenty of pressure in the fuel rail and injectors work if I ground the PCM side.
Brilliantly the guy from US sent me another PCM but exactly the same has happened, it seems as if the injector drivers in the pcm have failed, checked for shorts in the loom, 5v rail is good, how could the car 'kill' 2 pcm's
Bypassed the ASD relay made no difference
No check engine lamp, no fault codes
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