Code result
P050E
Cold Start Engine Exhaust Temperature Too Low
Moderate severity
What it means
During the cold-start strategy the ECU monitors exhaust temperature to ensure catalyst light-off. The measured EGT remains below the target threshold within the allowed time - heat-up strategy is not effective. Causes include excessive heat loss, very rich mixture cooling the exhaust, or a faulty EGT sensor.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Excessive heat loss between port and catalyst
highOne of the most commonly reported causes for this code — check this first.
EGT sensor drifts low
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P050E freeNo credit card required