Uplander 2005-2009
This sport-van offers a sporty feel and roomy interior, all in the body of a minivan.
Platform: U-Body

PCM Question (No power to coil or injectors, does crank)

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Old Jun 24, 2022 | 1:43 PM
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twistyblackmetal's Avatar
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Default PCM Question (No power to coil or injectors, does crank)

Hi all! 06 Uplander. Just bought it cheap due to no start. Initial inspection revealed fuel injector open codes on all 6 injectors, getting no power to coil pack in run position and fuses 15-Elecronic ignition, 16-Fuel Injector, 18, Electronic Throttle Control and 19, Engine Sensor Evaporator aren't getting power.
It seems that the relay that controls that, PWR/TRN is getting power on two terminals, one ground and one seemingly "dead". In looking over the schematic, I'm curious if the brown wire ( PCM pin 24/26) PCM relay is looking for or supposed to be supplying power to that relay? I tried swapping the relay with a known good, but it made no difference. Thinking about jumping power to them to see what happens.
Codes pulled:
P0030 O2 sensor
P0036 O2 sensor
P0102 MAf sensor
P0201-0206 Open injectors 1-6
P0443 vapor purge.
Any thoughts welcomed!
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Old Feb 28, 2023 | 11:01 AM
  #2  
twistyblackmetal's Avatar
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Default Solved!

So, by bypassing the PCM relay I got this thing to run. I'm trying to fix it "right" but for now, it's drivable!
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