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Error Code P0172
Our 2001 PT Cruiser check engine light is on and the car is idling roughly
and has poor low-speed throttle response. The error code is P0172 that states the oxygen sensor reports the air/fuel mixture is too rich and the computer tries to add more air to compensate. The gas mileage is pretty bad, ~15 mpg, at the last fill-up. The local dealer wants to replace the fuel pump for $700. He said the fuel pressure is too high, but when I checked the manual, it was within 2-3 psi of the stated specification. Does anyone have any suggestions? Would another oxygen sensor correct the problem? Thanks, - Russ |
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