P0172 Diagnostic Trouble Code Discussion for August 2019
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2005 Dodge Ram 1500 ST 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1D7HA18D65 P0172: bank 1 too rich. So, As mentioned heads both were removed and sent to machine shop. I replaced the head gasket and put everything back together. While test drive got a p0300 random misfire. I reused the original plugs as the customer said he replaced them shortly before th... |
August 16, 2019 | |
| 2005 Dodge Ram 1500 ST 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1D7HA18D65 P0172: bank 1 too rich. So, As mentioned heads both were removed and sent to machine shop. I replaced the head gasket and put everything back together. While test drive got a p0300 random misfire. I reused the original plugs as the customer said he replaced them shortly before th... |
August 20, 2019 | |
| 2001 Jeep Grand Cherokee Laredo 4.0L Excessive Emissions, Poor Idle Quality VIN: 1J4GW48SX1 P0172: Fuel System Rich (Bank 1). Hi Everyone, I just am trying to make sure I'm not missing something here. Fuel pressure spec is 44.2-54.2 but my pressure was 65lbs. I replaced the fuel filter (pressure regulator) and pressure dropped to 60 still too high. I next ran return line to bucke... |
August 30, 2019 |
