engine change now won't start
#22
The scan tool wont do anything. Its the data the scan tool provides that will allow you to find your issue. Maybe communication or ecm related maybe mechanical, who knows. Its all about interpretation of the data.
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#23
#24
A code doesn't mean the sensor is faulty however without an oscilliscope it would be hard to determine if a waveform issue is present. If you test for power and ground at the sensor with a good reading on a loaded circuit, replace it and it still won't start you can then diagnose further. You can also use a data pid to determine of the computer sees engine rpm.
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#25
#27
WEll we have a new question maybe you guys can help with. I forgot to mention one thing in all this. The motor came out of a MANUAL truck, and we put it in a AUTOMATIC truck. we used the engine wiring from the manual truck, we think this may be the problem, found a plug by the transmission, we compared it to a friends automatic truck and it looks like it goes in to the engine wiring, but we don't have a plug on this wiring. so the question is, were the wiring harness' different between the automatic and the manual? we think this may b ethe problem.