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Loss of power

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Old May 31, 2026 | 04:31 PM
  #1  
jordanboyz29's Avatar
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Default Loss of power

I was out doing some running the other day and my truck just had a sudden loss of power. I limped it back home and ran the codes and only got a code for Injector 5. But after I pulled it in my garage to work on it, I ended up with a bunch of other codes that are listed below. If anyone could help me on what could possibly be wrong that would be great.
Truck has a crate jasper engine with about 45k miles and was installed about 5.5 years ago new timing chains 2 years ago and only mods to the truck is it has a 6in lift and wheels and tires. If any other info is needed, please ask.

Truck: 2012 3.5 EcoBoost 125k on odometer

Engine:
P0034-00 TURBOCHARGER BYPASS VALVE A CONTROL CIRCUIT LOW
P00C1-00 TURBOCHARGER BYPASS VALVE B CONTROL CIRCUIT LOW
P0205-00 CYLINDER 5 INJECTOR A CIRCUIT/OPEN
P0245-00 TURBOCHARGER WASTEGATE ACTUATOR A LOW
P0305-00 CYLINDER 5 MISFIRE
P0480-00 FAN 1 CONTROL CIRCUIT
P0481-00 FAN 2 CONTROL CIRCUIT
P0645-00 A/C CLUTCH RELAY CONTROL CIRCUIT
P1548-00 ENGINE AIR FILTER RESTRICTION

TRANSMISSION:
P0034-00 TURBOCHARGER BYPASS VALVE A CONTROL CIRCUIT LOW
P00C1-00 TURBOCHARGER BYPASS VALVE B CONTROL CIRCUIT LOW
P0205-00 CYLINDER 5 INJECTOR A CIRCUIT/OPEN
P0305-00 CYLINDER 5 MISFIRE
P0480-00 FAN 1 CONTROL CIRCUIT
P0481-00 FAN 2 CONTROL CIRCUIT
P0645-00 A/C CLUTCH RELAY CONTROL CIRCUIT
P1548-00 ENGINE AIR FILTER RESTRICTION



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Old Jun 5, 2026 | 07:23 AM
  #2  
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Default

Maybe a poor connection at the PCM type thing.
Seems like you have a harness type issue.
Check engine bay grounds and be sure battery is up to par.
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