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Engine stalling: Codes, Causes & Fixes

An engine that dies at idle, when coming to a stop or while driving is most often starved of air or fuel, or has lost a crankshaft or camshaft position signal. Common causes include a dirty throttle body or idle air control valve, a failing fuel pump, a faulty MAF sensor and intermittent crank sensor faults. Stalling while moving is dangerous because power steering and brake assist are reduced – if it happens repeatedly, limit driving until it is fixed.

133Codes
3.1Average severity
25%High or critical
21%DIY-friendly
Severity distributionSeverity distribution

Most viewed

P0101 Powertrain The MAF sensor's airflow reading doesn't match what the engine computer expects… Low P0171 Powertrain The engine computer is adding the maximum extra fuel it's allowed on bank 1 and still sees… Moderate P0335 Powertrain The engine computer lost the crankshaft position signal. Expect stalling or a crank-no-start. High P0340 Powertrain The computer lost the camshaft signal on bank 1. Expect long cranking, less power… Moderate P0505 Powertrain The engine computer can't hold idle speed where it wants it – usually a dirty or sticking idle… Low P0562 Powertrain The engine computer sees too little supply voltage – usually a charging, battery or ground… Moderate

All codes (33)

All Severity 3+ Severity 4+
U0105 Network The PCM lost contact with the separate module that fires the injectors, common on diesel… High U0107 Network The engine computer can't reach the module that drives the electronic throttle, so power is cut… High U0109 Network The PCM lost contact with the module that controls fuel pump speed; stalling or no-start can… High

Symptoms

Check engine light on 558Loss of power 214Rough idle 184Limp mode 165Poor fuel economy 146Car won't start 123Harsh or slipping shifts 80ABS / traction light on 65Fuel smell 34Check engine light flashing 22