P0172 Diagnostic Trouble Code Discussion for September 2004
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 1996 Pontiac Grand Am SE 2.4L Hesitation, Surge, MIL Lamp on VIN: 1G2NE12T6T P0172: Fuel System Rich. ... scratching fingers. The other day we had this car in for a bad misfire, we found the typical burnt coil holder. We replaced the coils, coil holder, boots, plugs, and a pair of O2 sensors. The car left the shop running great. The next day the customer calle... |
September 21, 2004 | |
| 1998 Ford Contour SVT 2.5L Stall, MIL Lamp on VIN: 1FAFP68G7W P0172: too rich. this car will always set codes p0172 / p0175 - long term fuel trim is always at around 25% ! both banks - short term is =/- 10% closed loop - engine temp (200 deg) IAT is 120 F - this vehicle has new engine, intake gaskets, map sensor, iac, 02 sensors, cat con... |
September 23, 2004 | |
| 2003 Dodge Ram 1500 SLT 5.7L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1D7HU18D33 P0172: fuel system 1/1 rich. First of all thank you for taking the time to help out on this one. I have checked the ignition coils, spark plug wires, fuel injectors, and they are working fine. Truck first came in with a random cylinder missfire. I cleared codes and the po172 codes came up... |
September 24, 2004 | |
| 1996 Mercury Villager Nautica 3.0L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 4M20V11W9T P0172: Fuel Trim Rich (Bank 1). Van is running very rich, no vacuum leaks, charcoal canister hose removed no difference,engine temp sensor in range, injectors check out electricly and flow tested, fuel pressure in specs, ignition timing good, maf replaced with test unit, tps good on scanner ... |
September 24, 2004 |
