Question about 1997 Saab 900
Check if engine is running too cold or hot on temp gauge.
If so replace the engine cooling thermostat,
it will alter what the computer thinks engine is doing.
Posted on Jul 29, 2008
The fuel pump is in the inside of the vehicle. if the fuel pump seals rupture, the pump will build pressure then emitt fumes into the cab of the car. Also the EVAP system checks pressure in the fuel tank, the evap pressure sensor will sense a drop in pressure thus activating the check engine light. I recomend inspecting the fuel pump seals. OR
You could have leaky seals in the fuel system after the pump, lines injectors, fittings. These fuel systems have a fuel pressure sensor if the leaky system is droping pressure below ecu spec the check engine light will come on. hope this helps
Posted on Aug 14, 2008
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