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Home >> Jeep >> 2018 >> Wrangler JK Sahara, Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Electronic Control Modules (Service Information) >> Module, Powertrain Control, (Pcm) 2.8L Diesel >> Operation >> Pcm Operating Modes >> Engine Start-Up Mode

Engine Start-Up Mode

The PCM uses the engine temperature sensor and the crankshaft position sensor (engine speed) inputs to determine fuel injection quantity.

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