P0172 Diagnostic Trouble Code Discussion for March 2016
Fuel System Rich (Bank 1)
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| Help Request | Posted | |
| 2002 Jaguar XK8 4.0L Excessive Emissions, codes VIN: SAJDA41C32 P0172: system too rich B 1 MIL OFF. Need help here trying to figure out why it is setting rich codes when the exhaust is clean .The MAF seems low on gs? The af sensors do drop down to .75 when idling a bit.All I am seeing from the air fuel sensors is 1.0. ECT 214f, IAT 160, afs1 idle 1.01 2000 r... |
March 02, 2016 | |
| 2002 Jaguar XK8 4.0L Excessive Emissions, codes VIN: SAJDA41C32 P0172: system too rich B 1 MIL OFF. Need help here trying to figure out why it is setting rich codes when the exhaust is clean .The MAF seems low on gs? The af sensors do drop down to .75 when idling a bit.All I am seeing from the air fuel sensors is 1.0. ECT 214f, IAT 160, afs1 idle 1.01 2000 r... |
March 03, 2016 | |
| 2002 Toyota RAV4 2.0L MIL Lamp on VIN: JTEHH20V52 P0172: Fuel System Too Rich (Bank 1). this rav 4 came in with lean codes on bank 1 and 2 the mass air flow was replaced an injection flush carbon flush intake manifold gaskets im leaning to injectors or air flow sensors fuel pressure is 48 psi and has good volume air flow sensors at idle at 1.0 in... |
March 03, 2016 | |
| 2005 Acura MDX Touring 3.5L MIL Lamp on VIN: 2HNYD18845 P0172: Fuel System Too Lean (Bank 1). A miss is sometimes at idle. The misfire counter shows a miss at various cylinders at cruise. I am thinking it is time to replace the injectors because I think one or more is leaking. The fuel trim shows rich, particularly on bank 1. Any other suggestions? |
March 04, 2016 | |
| 2002 Toyota RAV4 2.0L MIL Lamp on VIN: JTEHH20V52 P0172: Fuel System Too Rich (Bank 1). this rav 4 came in with lean codes on bank 1 and 2 the mass air flow was replaced an injection flush carbon flush intake manifold gaskets im leaning to injectors or air flow sensors fuel pressure is 48 psi and has good volume air flow sensors at idle at 1.0 in... |
March 11, 2016 |
