No start after engine/transmission swap...
#1
No start after engine/transmission swap...
Got the base tune yesterday, installed the PCM and battery this morning. Cranks, but won't start and run. Has fuel, not sure how to check for spark on these newer engines. Something I noticed, as it is cranking - the oil pressure gauge does not move.
This engine was running in my other truck, and my current truck was running before the swap. I am kind of stumped at the moment.
This engine was running in my other truck, and my current truck was running before the swap. I am kind of stumped at the moment.
#4
TECH Senior Member
iTrader: (2)
You can't do a crank learn with a non running engine, so that is not the problem.
I said vats because you remove the PCM from the vehicle, flashed it and put it back in and that very well could have caused the VATS to trip.
Other thing to check is spark and all IGN fuses that deal with that.
I said vats because you remove the PCM from the vehicle, flashed it and put it back in and that very well could have caused the VATS to trip.
Other thing to check is spark and all IGN fuses that deal with that.
#5
11 Second Club
iTrader: (13)
So a quick recap, two different motors, two different trucks. Take engine and trans from truck (A) and install into truck (B). My question is did you carry over the pcm from the "donor" truck, if so, try removing the key cylinder from the donor truck and install in the current truck that has the no start. Reason being is that the key is usually "keyed" to the pcm, and if a pcm has been swapped into another chassis and VATS was not removed (turned off), the pcm will enable VATS and not allow the vehicle to start
#7
11 Second Club
iTrader: (19)
So a quick recap, two different motors, two different trucks. Take engine and trans from truck (A) and install into truck (B). My question is did you carry over the pcm from the "donor" truck, if so, try removing the key cylinder from the donor truck and install in the current truck that has the no start. Reason being is that the key is usually "keyed" to the pcm, and if a pcm has been swapped into another chassis and VATS was not removed (turned off), the pcm will enable VATS and not allow the vehicle to start
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#8
TECH Senior Member
iTrader: (5)
Nope pcm as part of the vats.. The key that it remembers isnt the igntion key but tbere is a code between the vats module and pcm that is a security key code, that is a really long drawn out process of leaving the key on and turni g it off for 15 minutes at a time, but normally the engine will start and fire over for 2-5 seconds and then shut down...