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- MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED - SYSTEM LEAN DIAGNOSTIC TROUBLE CODES (DTC'S) - SERVICE TIPS
| Publication Date: August 13, 2004 |
| 2000 Contour |
2000-2003 Escort ZX2
2000-2004 Crown Victoria, Focus, Mustang, Taurus
2000-2004 Econoline, Excursion, Expedition, Explorer, F-Super Duty, Ranger
| 2000-2002 Continental |
2000-2004 LS, Town Car, Navigator
| 2000 Mystique |
2000-2004 Grand Marquis, Sable, Mountaineer
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.
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