P249C Diagnostic Trouble Code Discussion for January 2022
Excessive time to enter closed loop reductant system control
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| Help Request | Posted | |
| 2015 Volkswagen Jetta TDI SE 2.0L MIL Lamp on VIN: 3VWLA7AJ4F P249C: Excessive time to enter closed loop reductant system control. Low Adblue message on cluster. Codes P20E800(reductant pressure too low). Can't clear the message on cluster. The reductant system will reach 5 bar(72 psi)(within spec) but takes about 10 seconds when monitored using dosage test on my Maxisys. Pulled the l... |
January 18, 2022 |
