TwinTurbo.NET: Nissan 300ZX forum - How long should Fuel Pressure stay at 45psi?
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Subject How long should Fuel Pressure stay at 45psi?
     
Posted by Michaels90na+1 on July 16, 2011 at 4:50 PM
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Message In another post I stated I am having issues with smoke after injector install. Drove the car today and it idled and ran smooth with no smoke at all and measured 45lbs of fuel pressure. Drove the car down the block and back and after getting hard on the throttle it started smoking bad again so I put the pressure guage back on and it is staying so far at 45psi. What is a resonable pressure drop over a certain period of time, or should it not drop at all? It also raised a few psi after I shut off the car. Any input would be appreciated.

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