Possible causes – Faulty Purge Flow Sensor– Purge Flow Sensor harness is open or shorted– Purge Flow Sensor circuit poor electrical connection When is the code detected? The Engine Control Module (ECM) detected a purge flow sensor signal above calibrated

Possible causes – Faulty Rear O2 Sensor– Rear O2 Sensor harness is open or shorted– Rear O2 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Faulty Rear O2 Sensor– Rear O2 Sensor harness is open or shorted– Rear O2 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Faulty Throttle Actuator Control (TAC) module– Throttle Actuator Control (TAC) module harness is open or shorted– Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires) Symptoms – Engine Light ON (or Service Engine

Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection When is the code detected? Engine Control Module (ECM) detected the Thottle Position (TP) sensor voltage extended above

Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1121 MAZDA Description Sensor signal output not

Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1122 MAZDA Description Sensor signal output not

Possible causes – Faulty throttle position sensor– Throttle position sensor harness is open or shorted– Throttle position sensor circuit poor electrical connection– Throttle position sensor not properly adjusted When is the code detected? Malfunction is detected when voltage from the

Possible causes – Faulty VTC Shutter valve actuator (Stuck open)– Missconnecting or pull out the vacuum hose– Faulty Variable tumble solenoid valve – Variable tumble solenoid valve harness is open or shorted– Variable tumble solenoid valve circuit poor electrical connection

Possible causes – Faulty VTC Shutter valve actuator (Stuck closed)– Missconnecting or pull out the vacuum hose– Faulty Variable tumble solenoid valve – Variable tumble solenoid valve harness is open or shorted– Variable tumble solenoid valve circuit poor electrical connection

Possible causes – Foulty Throttle Body– Faulty Throttle Actuator Control Module– Throttle Actuator Control Module harness is open or shorted– Throttle Actuator Control Module circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service

Possible causes – Generator harness is open or shorted– Generator circuit poor electrical connection– Generator belt missing or loose– Faulty generator Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Large vacuum leak on the engine – Faulty Manifold Pressure (MAP) sensor – Faulty Throttle Position Sensor (TPS)– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2074 MAZDA Description

Possible causes – Large vacuum leak– Fuel system malfunction– Faulty Mass Air Flow (MAF) sensor– Ignition system malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Large vacuum leak– Fuel system malfunction– Faulty Mass Air Flow (MAF) sensor– Ignition system malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Leaking fuel injector or pressure regulator– High fuel pressure condition– Faulty Oxygen (O2) Sensor– Faulty Mass Air Flow (MAF) sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) MAZDA Technical Service Bulletins for P2188

Possible causes – Leaking injector, regulator or excessive fuel pressure– Engine vacuum leak or open EGR valve at idle– Engine mechanical condition– Faulty HO2S or Mass Air Flow (MAF) sensor Symptoms – Engine Light ON (or Service Engine Soon Warning

Possible causes – Low battery voltage– Faulty Powertrain Control Module (PCM)– PCM harness is open or shorted– PCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2507 MAZDA Description When the ignition switch