Question about 1998 Buick Park Avenue
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Posted on Jan 02, 2017
The reset button is located under the passenger side of the instrument panel.
With the ignition in the ON position, but the engine not started, use a pencil to push the reset button, holding it for five seconds.
After this, the "Change Oil Soon" lamp will flash four times. This indicates that the Oil Life Monitor System has acknowledged the oil change.
Posted on Apr 09, 2009
need to take car somewhere to have the code read with a scanner,try parts stores first some will do it for free if not the dealers have them
Posted on Sep 15, 2009
Trouble Code: P0171 (3.8L V6 VIN 1 Auto)
Fuel Trim System Lean (Bank 1) Print this code data Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details
DTC P0101-P0103, P0107, P0108, P0121-P0123, P0130-P0138, P0140, P0141, P0201-P0206, P0300, P0401-P0405, P0410, P0440-P0446, P0506, P0507, P1404 or P1441 not set, engine started, vehicle driven at less than 82 mph at 550-4000 rpm, BARO sensor over 70 kPa (10.1 psi), ECT sensor from 68-230ºF, IAT sensor from 64-158ºF, MAF sensor from 2.8-150 gm/s, MAP sensor from 16-105 kPa (2.6-15.2 psi), fuel level over 10%, and the PCM detected the Long Term fuel trim value was more than +20% for 6 seconds. The PCM controls the air/fuel metering system to good overall fuel economy, driveability, and emission control. During open loop, the PCM determines fuel delivery based on sensor signals, without the oxygen sensor input. During closed loop, the PCM adds oxygen sensor inputs to calculate Short and Long term fuel trim fuel delivery adjustments. Short Term fuel trim values change rapidly in response to changes in the oxygen sensor signals. Long Term fuel trim makes coarse adjustments in order to maintain an air/fuel ratio of 14.7:1.
Troubleshooting:2002 Buick Park Avenue, 3.8L, P0171
Posted on Nov 01, 2009
Here is a link to the your answer, upper right hand corner is 2 pdf files one for aplication the other for the diagrams, hope it helps.
Posted on Jan 19, 2010
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