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Home >> Mercedes Benz >> 2001 >> ML430 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Trouble Shooting - No Codes >> Symptoms >> Engine Does Not Run Smoothly (Shakes) >> Fuel Injector Spray Pattern
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Fuel Injector Spray Pattern

Turn ignition off. Remove fuel distributor rail and fuel injectors as one assembly. Connect jumper wire between ME-SFI control module connector "A" terminal No. 3 (socket box terminal No. 3) and ME-SFI control module connector "C" terminal No. 29 (socket box terminal No. 21). Turn ignition on. Observe fuel injector spray pattern. Fuel injectors must spray evenly. If fuel injectors spray evenly, test is complete. If fuel injectors do not spray evenly, replace faulty fuel injectors as necessary.