Re: Engine Light Inspection Fail - Saab NG9-5 Bulletin Board - Saabnet.com
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2010 so I assume an Aero with 2.8L Turbo?
P0451, EVAP Tank Pressure Performance Problem. Nothing specific in fault tracing. I would start with purge valve (below) then possibly further diag the pressure sensor if this fault continues. May require pressure sensor replacement.
P0496 EVAP Purge Valve Internal Leakage. Common on the 2.8T, just replace the evap purge valve.
P2187 Long Term Fuel Trim Additive Max Value Air Fuel Too Lean. Start with a crankcase vent leak. Broken pipe or other possible leaks. Look for any intake manifold leaks, brake booster vacuum leaks, charge air boot/intercooler leaks.
Sounds like you need to get this to a place familiar with Saabs if the first guy said there was nothing wrong.
Strictly Saab Inc.
Strictly Saab Inc.
-1991 900 S-PG MT
-2001 9-5 Wagon AT
-2006 9-3 SS AT
-1964 96 2-Smoke MT
-1967 96 v4 MT
-1983 900 Turbo MT
-1985 900 SPG MT
-1988 9000 Turbo Black MT
-1988 9000 Turbo White AT
-1990 900 SPG Red MT
-1990 900 SPG Black MT
-1991 9000 Turbo MT
-1991 900 SPG Red MT
-1992 9000 Griffin AT
-2000 9-5 Aero Sedan MT
-2001 9-5 Aero Wagon MT
-2008 9-3 2.0T Sedan AT
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