P0172 Diagnostic Trouble Code Discussion for May 2021
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2012 Chevrolet Silverado 2500 HD LT 6.0L Excessive Emissions, MIL Lamp on VIN: 1GC1KXCGXC P0172: too rich bank 1. Have this fine used truck from used car lot here.Have rich bank 1 and 2 codes,we replaced maf due to reading out of range test drove and it passed the rich running tests in mode 6 data, Customer returned with cel on again with same codes. Here are my readi... |
May 07, 2021 | |
| 2015 Honda Fit EX 1.5L MIL Lamp on P0172: Runs Rich Bank 1. Car runs fine but shows rich. From what I've read, The Cylinder A/F test is marginally accurate at best. I don't have a lot of experience with GDI and am looking for direction on diagnosis. Identafix and other sources suggest valve adjustments and Injec... |
May 12, 2021 |
