Question about 1999 Subaru Impreza

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The engine idles fine if you depress the throttle the engine bogs very bad. if you feather the throttle it will rev to 4000 rpm momentarily then shut down to an idle . the tps sensor was replaced with very little change. the fuel and air filters are new, when you get the engine to come off idle as long as you keep the engine under 3900 rpm it will allow you to make the car move but if you depress the throttle to quickly or to far the engine shuts down to an idle. if you spray a quick shot of fuel into the air intake while the engine is in a bog it takes off and runs for a few seconds before bogging back down.I need to find out what the fuel pressure is supposed to be in the fuel rails as I suspected low fuel rail pressure.

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Check the air flow meter operation and rangeing

Posted on Oct 04, 2010

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