96 Dodge Neon - No Spark, No Start
#21
10-27-2009, 09:03 AM
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Since you do not have power to the two outside pins, but do to the center wire and since you have checked everything else, it is time to truly consider that your PCM is dead.
You have a 1996 SOHC engine. What tranny? MTX or ATX? There is a junkyard near where I live that has 3 Neons (none are 1995 and all three had ATX's in them - one was a DOHC, and one is SOHC, the last one has the motor and tranny gone, but I can fnd out what it had if I look) and the PCM's are still there. Would you like for me to find out a ballpark price for one? That may give you a better sense of how much it will actually cost to try one out.
You have a 1996 SOHC engine. What tranny? MTX or ATX? There is a junkyard near where I live that has 3 Neons (none are 1995 and all three had ATX's in them - one was a DOHC, and one is SOHC, the last one has the motor and tranny gone, but I can fnd out what it had if I look) and the PCM's are still there. Would you like for me to find out a ballpark price for one? That may give you a better sense of how much it will actually cost to try one out.
Thanks!
#22
10-27-2009, 03:20 PM
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Just an update:
I got two used PCM's from 2.0 SOHC Dodge Neons - MTX. Neither PCM worked. I also noticed that the Chrysler P/N's are different from the original PCM in the car ...
The 2 PCM's that I got today each have different Chrysler P/N's as well. Do these PCM's have to be programmed for a specific VIN Number or should they work regardless?
The one PCM came out of a 1996 Dodge Neon - SOHC - MTX and the other came out of a 1997 Dodge Neon - SOHC - MTX.
Just about ready to send this car to the JUNKYARD!!!!
I got two used PCM's from 2.0 SOHC Dodge Neons - MTX. Neither PCM worked. I also noticed that the Chrysler P/N's are different from the original PCM in the car ...
The 2 PCM's that I got today each have different Chrysler P/N's as well. Do these PCM's have to be programmed for a specific VIN Number or should they work regardless?
The one PCM came out of a 1996 Dodge Neon - SOHC - MTX and the other came out of a 1997 Dodge Neon - SOHC - MTX.
Just about ready to send this car to the JUNKYARD!!!!
Last edited by kftzpatrick; 10-27-2009 at 03:55 PM.
#23
10-28-2009, 10:17 AM
like i said, im having the exact problem. everything is good, the spark just isn't there. i took a good motor out of one with a bad body and swap the bad motor out of a good body with this one and now nothing runs. so i've tried both pcm's, both coils, both crank sensors, both cam sensors... and nothing.
i took the engine harness out of the car and cut it apart, alot of the wires seem to be stuck togather, like speaker wire, but they shouldn't be. what i get from the coil clip is the center is a ground (with my test light hooked up to positive it lights up, nothing when its on neg) and the one closer to the firewall, doesn't light up with ground or positive, but i did notice when i have my test light hooked up to the positive terminal (lights up to show ground) when i stick it in the one close to the firewall, one of the relays clicks (i think it's the asr)
but going back to the crappy wire story, which sensor tells the coil to fire, the cam or crank? if it is the crank, which wire on the sensor is supposed to have positive power?
i took the engine harness out of the car and cut it apart, alot of the wires seem to be stuck togather, like speaker wire, but they shouldn't be. what i get from the coil clip is the center is a ground (with my test light hooked up to positive it lights up, nothing when its on neg) and the one closer to the firewall, doesn't light up with ground or positive, but i did notice when i have my test light hooked up to the positive terminal (lights up to show ground) when i stick it in the one close to the firewall, one of the relays clicks (i think it's the asr)
but going back to the crappy wire story, which sensor tells the coil to fire, the cam or crank? if it is the crank, which wire on the sensor is supposed to have positive power?
#24
10-28-2009, 10:52 AM
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like i said, im having the exact problem. everything is good, the spark just isn't there. i took a good motor out of one with a bad body and swap the bad motor out of a good body with this one and now nothing runs. so i've tried both pcm's, both coils, both crank sensors, both cam sensors... and nothing.
i took the engine harness out of the car and cut it apart, alot of the wires seem to be stuck togather, like speaker wire, but they shouldn't be. what i get from the coil clip is the center is a ground (with my test light hooked up to positive it lights up, nothing when its on neg) and the one closer to the firewall, doesn't light up with ground or positive, but i did notice when i have my test light hooked up to the positive terminal (lights up to show ground) when i stick it in the one close to the firewall, one of the relays clicks (i think it's the asr)
but going back to the crappy wire story, which sensor tells the coil to fire, the cam or crank? if it is the crank, which wire on the sensor is supposed to have positive power?
i took the engine harness out of the car and cut it apart, alot of the wires seem to be stuck togather, like speaker wire, but they shouldn't be. what i get from the coil clip is the center is a ground (with my test light hooked up to positive it lights up, nothing when its on neg) and the one closer to the firewall, doesn't light up with ground or positive, but i did notice when i have my test light hooked up to the positive terminal (lights up to show ground) when i stick it in the one close to the firewall, one of the relays clicks (i think it's the asr)
but going back to the crappy wire story, which sensor tells the coil to fire, the cam or crank? if it is the crank, which wire on the sensor is supposed to have positive power?
Also, try this ... NEISG1 recommended this idea: "The PCM pins pulse to ground. If you disconnect the coil connector and connect a small test lamp (LED type test lamp works best) from +bat to pin 1 or 3 of the harness connector, the test lamp should flash rapidly while cranking."
Last edited by kftzpatrick; 10-28-2009 at 10:59 AM.
#25
10-28-2009, 11:37 AM
i have tried that, but i get nothing. mmmm that orange wire in my harness looks alittle cruddy, let me see if it gets power when its all hooked up, if thats not getting power because of a faulty wire then it won't sense where the crank is and there will be no spark.... im gunna go play with it and let you guys know.
#26
10-28-2009, 12:08 PM
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10-28-2009, 12:54 PM
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10-28-2009, 02:28 PM
#29
10-28-2009, 02:41 PM
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#30
10-28-2009, 03:44 PM
i had spark, i went inside to get a drink and now its gone.... wtf!