This article is intended to aid in diagnosing DTC’s P0171, P0174, P1130, P1131, P1150, P1151, P2195, or P2197 (system lean or lack of HEGO switches) when a vacuum leak is present. HEGO sensors, MAF sensors, and PCM replacements are not an effective repair when a vacuum leak is causing the above DTC’s.
ACTION
Perform the following inspections/repairs when the above codes are found in memory. Procedure provides instructions on how to make comparisons of the total fuel corrections (using scan tool or equivalent) at idle and high RPM’s to help determine if a vacuum leak is the root cause of the DTC’s.
Showing posts with label trims. Show all posts
Showing posts with label trims. Show all posts
Friday, May 28, 2010
2000 Ford Contour Malfunction Indicator Lamp (MIL)
11:14 PM by onesecond
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Labels: air leakage, airflow, barometric pressure, bp, Ford, ford contour, indicator lamp, leaks, memory, p0171 p0174, p1130, pid, replacements, root cause, rpm, scan tool, sensors, switches, trims, vacuum leak
Labels: air leakage, airflow, barometric pressure, bp, Ford, ford contour, indicator lamp, leaks, memory, p0171 p0174, p1130, pid, replacements, root cause, rpm, scan tool, sensors, switches, trims, vacuum leak
Tuesday, May 18, 2010
Disabling Daytime Running Lights (DRL) for VW Passat
11:10 PM by onesecond
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Labels: 8t, b5, caution, closer look, damages, daytime running lights, drl, euroswitch, fuse panel, headlights, light switch, notch, passat, pin connectors, pins, trims, Volkswagen, volkswagen passat, vw passat, warranty
Labels: 8t, b5, caution, closer look, damages, daytime running lights, drl, euroswitch, fuse panel, headlights, light switch, notch, passat, pin connectors, pins, trims, Volkswagen, volkswagen passat, vw passat, warranty
A wiring diagram of the headlights for the 2001.5 VW Passat (may or may not apply to other model years). First method: Pulling out DRL relay 173 The fuse panel with cover. The driver side door has to be open. Remove the fuse panel cover. Start by prying through the notch shown above. These were done on a 2001.5 Volkswagen Passat 1.8T. It may also apply to other model years and trims. Look inside behind the fuse panel. You'll see the relay panel and relay 173. A closer look at relay 173 installed. Pull relay 173 out to disable the daytime running lights.
Second method: Modifying the light switch The pin connectors at the back of the light switch.
Second method: Modifying the light switch The pin connectors at the back of the light switch.
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