Tag
#stalling
4 posts in Car Diagnostics blog about "stalling" — OBD-II diagnostics, DTC codes, repair. ← All posts
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Starts then dies within seconds: immobiliser, fuel or idle control
An engine that fires and stops within two seconds is telling you something specific, and the timing narrows the cause more than any code.
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P0320 to P0322: ignition and engine speed input circuit
Without a reliable RPM signal the ECU cannot time a single injection or spark. These codes describe losing that signal, and the symptom is usually a car that stops.
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P0336: crankshaft position sensor range/performance and the reluctor ring
P0335 means no signal. P0336 means a signal that is present but wrong, and that difference frequently points at the toothed wheel rather than the sensor.
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P0506: idle speed lower than expected and the stall that follows
The ECU is holding the throttle where idle should be correct, and the engine is turning slower than that. Something is taking torque, or something is restricting air.