LT Swap – Crank but No Start

The Jeep was prepped for ignition. All fluids were topped off. The RPM Extreme Jeep feature flash was performed to let the Jeep know some items were coming from the GM ECU, and to ignore fault codes for those items. I was able to set up a few cameras in the garage to record the moment of engine turn over. When I turned the key the Jeep had strong crank, but no start. This was late on a Friday night and was gassed, so I stepped away from the project until Saturday.

Saturday I woke up early and ran some diagnostics on the Jeep while it was sitting and turning over. For some reason I am not seeing any fuel pressure, but when I turn the key the pump primes and fuel comes out of the fuel line at the engine. I will contact RPM Extreme and send them an HP Tuners log and see where we go. Stay tuned!

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