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Specific tools are needed to do either. You would need to pull the injectors and examine and test each one in order to find which one(s) are bad. Fuel pressure is done by connecting an injector system fuel pressure gauge to the test port on the fuel rail and testing it with the car off and running. Pressure (engine not running) should be 3.8 +/-0.2 Bar; running it should be 3.3 +/-0.2 Bar.
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Old 02-11-2012, 10:25 AM
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