DTC P050E:00 [MZI-3.7]

id0102d2314000

DTC P050E:00 | Cold start engine exhaust temperature out of range
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DETECTION CONDITION | • The PCM calculates the actual catalyst warm up temperature during a cold start. The PCM then compares the actual temperature to the expected catalyst temperature model. The difference between the actual and expected temperatures is a ratio. When this ratio exceeds the calibrated value this DTC is set and the malfunction indicator lamp (MIL) illuminates.
POSSIBLE CAUSE | • Intake air restriction • Vacuum leakage • Throttle body malfunction • Mechanical concern with the engine (insufficient engine) • Exhaust restriction • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record FREEZE FRAME DATA on the repair order, then go to the next step.
2 | VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
No | Go to the next step.
3 | VERIFY RELATED PENDING CODE OR STORED DTCs • Turn the ignition switch off then to the ON position (Engine off). • Verify related pending code or stored DTCs. • Is other DTCs present? | Yes | Go to the appropriate DTC troubleshooting. (See DTC TABLE [MZI-3.7].)
No | Go to the next step.
4 | INSPECT AIR CLEANER ELEMENT • Remove air cleaner element with the engine running. • Is the engine speed increased? | Yes | Replace the air cleaner element, then go to Step 9.
No | Go to the next step.
5 | INSPECT INTAKE AIR SYSTEM FOR EXCESSIVE AIR SUCTION • Visually inspect the hose in intake air system for looseness or damages. • Is there any malfunction? | Yes | Repair or replace the malfunctioning part, then go to Step 9.
No | Go to the next step.
6 | INSPECT THROTTLE BODY PASSAGE • Is the throttle body clogged? | Yes | Clean or replace the throttle body passage, then go to Step 9.
No | Go to the next step.
7 | INSPECT ENGINE COMPRESSION • Inspect the engine compression. (See COMPRESSION INSPECTION [MZI-3.7].) • Is the engine compression normal? | Yes | Go to the next step.
No | Overhaul the engine, then go to Step 9.
8 | INSPECT FOR RESTRICTION IN EXHAUST SYSTEM AND TWC • Is there any restriction? | Yes | Replace malfunctioning part, then go to the next step.
No | Go to the next step.
9 | VERIFY TROUBLESHOOTING OF DTC P050E:00 HAS BEEN COMPLETED • Verify that all disconnected connectors are reconnected. • Turn the ignition switch to the ON position (Engine off). • Clear the DTC from the PCM memory using the M-MDS. • Cool down the engine and radiator. • Start the engine and warm it up to normal operating temperature. • Retrieve DTCs using the M-MDS. • Is the PENDING CODE for this DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) Go to the next step.
No | Go to the next step.
10 | VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZI-3.7].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZI-3.7].)
No | Troubleshooting completed.