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Diesel Engines

Injector timing is controlled through Injector Driver Module (IDM) interface with Powertrain Control Module (PCM). PCM receives signals from Camshaft Position (CMP) sensor. Adjustment is not possible. If system is not operating properly, complete a thorough basic inspection and self-test to confirm correct operation of sub-system contribution to injector timing. See appropriate SELF-DIAGNOSTICS - DIESEL article.