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No injector pulse?

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Old 10-29-2016, 08:12 PM
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Default No injector pulse?

Changed cam and crank sensor put a rebuilt Ecm in my truck 2000 dodge v10 - I have spark spray starting fluid in the throttle body and it fires up and dies it also has a new fuel pump no injector pulse I get power to the injectors but no pulse ?
 
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Old 10-29-2016, 08:59 PM
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Is the theft deterrent disabling injector pulse? Any theft codes? A full function scan tool that reads B codes is needed to retrieve body codes.
 
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Old 10-29-2016, 09:31 PM
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No codes off my obd2 when I flip codes on my odometer I get p0320 which is crank position sensor but it's new and seems to work my rpm on my tach rises when cranking and I am getting spark
 
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Old 10-29-2016, 11:35 PM
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Can you read data with your scanner?
 
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Old 10-30-2016, 02:14 PM
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check the fuel pressure at the rail.
 
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Old 10-30-2016, 04:11 PM
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I can't read data with my scanner just codes my truck gives me the PO320 on the odometer which is the crank sensor I put a new one in it and it's getting spark and I have power to the injectors could the rebuilt Ecm have a problem?
 
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Old 10-30-2016, 04:59 PM
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Entirely possible.... Wouldn't be the first time someone got a bad PCM, with the exact same problem as the one they replaced.....
 
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Old 10-30-2016, 05:09 PM
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So here's the deal drove the truck home 500 miles when I got it - drove it around a while and went out and parked it then no start that's after I put a new fuel pump in it changed cam and crank sensor got a used pcm off eBay with the same program as my truck the truck fired right up - drove it around and then it just died I lost all communication with the pcm the original one and the used one it would not read on the obd2 and odometer kept saying no bus so I ordered a rebuilt pcm put it in and the truck fired up 3 times and just dies after about 5 seconds now all it does is crank I have power to coils I'm getting spark power to injectors spray starting fluid in and it starts
 
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Old 10-30-2016, 05:23 PM
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Get a noid light, test if you are getting injector pulse. (parts store should have some you can rent/borrow)
 
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Old 10-30-2016, 05:25 PM
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Ok so if there's a pulse then it's probably fuel pressure but what if it's not getting a pulse ?
 


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