Vp44 relay help
#1
Registered User
Thread Starter
Vp44 relay help
I have a no start problem. I narrowed it down to the ecm not sending power to the relay to turn on the vp44. Truck runs fine with the relay bypassed. I assume the ecm needs input from sensors before it allows the relay to be activated.
what sensor(s) if any should i check. I am guessing the cam position sensor?
what sensor(s) if any should i check. I am guessing the cam position sensor?
#2
You might check the VP44 diagnostics on www.bluechipdiesel.com or give them a call. I've read they are very helpful if you call them.
#3
Registered User
I think that the VP44 diagnostics is not of interest in this case.
It would be helpful if we knew exactly which vehicle we are dealing with- but preliminarily- if the computer does not send a signal there are two possibilities-
A: Not all conditions to send the signal are met ( maybe a readout of the computer is possible)
B: The computer is defective.
It would be helpful if we knew exactly which vehicle we are dealing with- but preliminarily- if the computer does not send a signal there are two possibilities-
A: Not all conditions to send the signal are met ( maybe a readout of the computer is possible)
B: The computer is defective.
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