Join Now
International Automotive Technicians Network

P0172 Diagnostic Trouble Code Discussion for June 2015

Fuel System Rich (Bank 1)


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2000 Honda Civic DX 1.6L Excessive Emissions, Rich air fuel VIN: 2HGEJ6618Y
P0172: Fuel System Too Rich. We have repaired the leaking cylinder head gasket and its still running rich. We have replaced both oxygen sensors, replaced map sensor, checked timing marks (ok) checked evap canister purge solenoid, had fuel injectors flow checked cleaned , and changed to pc...
June 17, 2015
2000 Honda Civic DX 1.6L Excessive Emissions, Rich air fuel VIN: 2HGEJ6618Y
P0172: Fuel System Too Rich. We have repaired the leaking cylinder head gasket and its still running rich. We have replaced both oxygen sensors, replaced map sensor, checked timing marks (ok) checked evap canister purge solenoid, had fuel injectors flow checked cleaned , and changed to pc...
June 18, 2015
2004 Lincoln Navigator 5.4L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 5LMFU27R14
P0172: bank 1 rich. I am having problem finding the reason why bank one is rich and bank 2 is lean. i think that is my cause of the misfires. cruising fuel trim is b1 ltft -19 b2 ltft 30. all four o2 sensors are switching. any advise would greatly be appreciated.
June 18, 2015
2000 Suzuki Grand Vitara JLX 2.5L MIL Lamp on VIN: JS3TD62V6Y
P0172: Fuel System Too Rich (Bank 1). ... vehicle.code p0440 and p0172/175.440 will reset within about 30 mi.driving. rich run codes take a little longer.rich run is ONLY at idle, total fuel trim @ idle runs right about -20% just off idle is less than 10% pos.trim. seen th...
June 19, 2015