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Re: Po452
"I'm still in a no crank mode on my swapped 03 5.3" My comments are assuming you mean "cranks but doesn't start."
You can pull the fuel rail and crank the motor with everything hooked up. Visual confirmation that everything is working correctly. I had purchased injector pigtails from Ebay that were pined incorrectly. That was a PITA to find.
Silly questions;
Did you get the VATs removed from the computer?
Are all the grounds connected?
Does the fuel pump come on for 3 second and then quit when the key is turned on and the motor not started?
The one that gets the most people is there are two computer connections, one is powered all the time and the other is 12v when running.
The motor temp sensor has to be hooked up and working correctly.
The code is “Evaporative Control System Pressure Sensor Low Input.” Typically the computer's ability to set this code is also removed when the ECM is programed for a transplant.
Cheers
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