Question about 1994 Lexus LS 400

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WILL NOT HOLD FUELPRESSURE AFTER ENGINE STOP - 1994 Lexus LS 400

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Well the most common causes are leaking injectors, fuel pressure regulator, or the check valve in the fuel pump.
You could block off the return line to eliminate the valve in the pump.

Posted on Aug 29, 2013

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Posted on Jan 02, 2017

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