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Disable LBZ/LMM Injectors for compression test
The GM service manual for the LMM uses a remote start switch. Directly activating the starter will bypass the ignition switch and not activate the injectors. On one of the prior models, 2003, it indicated you should remove the EDU/IGN 1 relay. Then it says "using the starter motor". I am...- chromeBuddha
- Post #4
- Forum: Duramax Hard Parts