No. 11 Engine Stalls/Quits, Engine Runs Rough, Misses, Buck/Jerk, Hesitation/Stumble, Surges: Notes

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

NO. 11 ENGINE STALLS/QUITS, ENGINE RUNS ROUGH, MISSES, BUCK/JERK, HESITATION/STUMBLE, SURGES (SKYACTIV-G 2.0, SKYACTIV-G 2.5) DESCRIPTION AND POSSIBLE CAUSE

11	ENGINE STALLS/QUITS-ACCELERATION/CRUISE ENGINE RUNS ROUGH-ACCELERATION/CRUISE MISSES-ACCELERATION/CRUISE BUCK/JERK-ACCELERATION/CRUISE/DECELERATION HESITATION/STUMBLE-ACCELERATION SURGES-ACCELERATION/CRUISE
DESCRIPTION	Engine stops unexpectedly at beginning of acceleration or during acceleration. Engine stops unexpectedly while cruising. Engine speed fluctuates during acceleration or cruising. Engine misses during acceleration or cruising. Vehicle bucks/jerks during acceleration, cruising, or deceleration. Momentary pause at beginning of acceleration or during acceleration. Momentary minor irregularity in engine output.
POSSIBLE CAUSE	Engine overheating Drive-by-wire control system operates with brake override system PCM DTC is stored Erratic signal to PCM APP sensor or related circuit malfunction Neutral switch or related circuit malfunction (MTX) Communication error between TCM and PCM (ATX) ECT sensor No. 1 or related circuit malfunction Fuel pressure sensor or related circuit malfunction IAT sensor No. 1 (integrated in MAF sensor/IAT sensor No. 1) or related circuit malfunction MAF sensor or related circuit malfunction MAP sensor or related circuit malfunction A/F sensor or related circuit malfunction HO2S or related circuit malfunction Improper air/fuel mixture ratio control operation Intermittent open or short circuit MAF sensor, APP sensor, TP sensor Improper operation of A/C system Improper operation of drive-by-wire control system Throttle body malfunction Incorrect fuel injection timing Fuel injector malfunction Purge solenoid valve malfunction Improper A/F sensor signal A/F sensor malfunction Open or short circuit in related wiring harness Loose installation Exhaust system leakage Main relay intermittent malfunction Poor fuel quality Air leakage from intake-air system Intake-air system restriction Air cleaner restriction Clutch slippage (MTX) Fuel leakage Vacuum leakage Engine mount installation loose Erratic or no signal from CMP sensor Loose installation Damaged trigger wheel (intake camshaft and/or exhaust camshaft) Open or short circuit in related wiring harness Erratic signal from CKP sensor Loose installation Damaged trigger wheel (crankshaft pulley) Open or short circuit in related wiring harness Inadequate fuel pressure (high or low pressure side) Fuel pressure sensor malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restricted Fuel filter clogged (built-into fuel pump unit) Fuel pump mechanical malfunction
POSSIBLE CAUSE	Low engine compression Improper intake valve timing Improper exhaust valve timing Improper operation of electric variable valve timing control system Electric variable valve timing driver malfunction Electric variable valve timing motor malfunction Electric variable valve timing actuator malfunction Improper operation of hydraulic variable valve timing control system Spark plug malfunction Exhaust system and/or TWC restriction (PCM DTC is stored.) PCV valve malfunction Check valve (two-way) malfunction Injector driver (built-into PCM) malfunction WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this service inforrmation. (See BEFORE SERVICE PRECAUTION .) (See AFTER SERVICE PRECAUTION .) CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign matter.

CAUTION:

Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.