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WE NEED TO ECM WIRING DIAGRAM, WE ARE REMOVING TO PROPANE…

WE NEED TO ECM WIRING...
WE NEED TO ECM WIRING DIAGRAM, WE ARE REMOVING TO PROPANE AND GOING BACK TO GAS
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Answered in 28 minutes by:
2/26/2018
Don
Don, Other
Category: Medium and Heavy Trucks
Satisfied Customers: 21,456
Experience: Many years of Truck ServiceFord, Dodge, GM, REO, Kenworth, etc
Verified

YEAR?
MAKE?
MODEL?
ENGINE?
TRANSMISSION?
2 or*****

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Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,884
Experience: Owner at DJ Wilson
Verified

Hi ,My name is Dan. I will be glad to help. We can follow up as needed on here. Im not an employee of the site but I help on here as time allows in between jobs. Response time will vary depending on my work load , etc. I will need the truck year make and model and engine make and model if you want a schematic

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Customer reply replied 5 months ago
1999 GMC 7500 454. IT WAS A PROPANE TRUCK, NOW WE ARE CHANGING BACK TO GAS.
WHEN THEY DID THE INSTALL TO PROPANE THEY TAPED INTO THE WIRING AND THE TRUCK WAS
CONVERTED IN 1999 AS A NEW TRUCK. SEEMS TO HAVE ALL THE WIRING. WE HAVE SPARK, FUEL
PRESSURE BUT NO INJ PULSE.

check for crank sensor signal. No speed signal would not allow injection. Let me see what I have in my archives for diagrams on this one.

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Hi Joe. Click below for what I pulled so far... Im going to check on the engine electrical now.

Service info

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Customer reply replied 5 months ago
We are not done yet, we have an ECM coming and should be here Friday so will know then.
Thanks

Thanks for the update. Pleasure to help

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Customer reply replied 5 months ago
ECM SHOWED UP, TRUCK RUNS. OEM WAS FOR PROPANE AND GUESSING IT WAS FACTORY PROGRAMMED
WITH THE VEH VIN SO DOING A FLASH WOULD NOT TURN BACK ON THE INJECTORS ECT.... THIS IS FOOD FOR THOUGHT IN CASE SOMEONE ELSE DOES THIS
Great news... Glad you got this resolved.
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,884
Experience: Owner at DJ Wilson
Verified
Daniel Wilson and 87 other Medium and Heavy Trucks Specialists are ready to help you
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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