P1790 Diagnostic Trouble Code Discussion for July 2026
Fault Immediately After Shift
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| Help Request | Posted | |
| 2015 Mercedes-Benz CLA250 2.0L Poor Fuel Economy VIN: WDDSJ4GB7F P1790: fuel quality sensor has short to positive. have two cars with the exact same codes..i would think that there must be some common problem..was hoping somebody might have seen this and could pass on any info along..have changed quality sensor no help.. |
July 07, 2026 |
