Quote:
Originally Posted by ard
Do a search for FRM. Could be PART of the issue.
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This, or JBE on the passenger side. I bought a non-running 2007 4.8 and one of the pins that supplied power to the valvetronic modules had broken off due to corrosion. Mine was easy to troubleshoot since the modules didn't respond to ISTA and I found they had no power.