FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Scantool Diagnostics





Engine Control
P0191 Fuel Rail Pressure Sensor Circuit Range/Performance - Scantool Diagnostics

Monitor GDS Data

1. Connect GDS to DLC (Data Link Cable).
2. Warm up the engine to normal operating temperature.
3. Monitor "FPS" parameter on GDS.




4. Is the "HO2S(S2)" parameter operating correctly ?