Richlkyl666 Posted May 14, 2011 Share Posted May 14, 2011 i got a stock 78 280z, on a cold start the engine cranks over fast due to the 700 cca battery but the motor seems like its not getting the gas to start. fuel pump works, injectors have been cleaned, all the filters have been replaced. on a warm start the motor will fire up right away. i dont know what could be causing this, except maybe a relay switch Quote Link to comment Share on other sites More sharing options...
NewZed Posted May 14, 2011 Share Posted May 14, 2011 (edited) You might be losing fuel pressure through either a leaking check valve in the fuel pump or a leaking fuel pressure regulator (or an aftermarket regulator like Aeromotive's, which all leak down from the factory). If you have a gauge, leave it hooked up overnight or monitor it and see if your fuel pressure is dropping. Edited May 14, 2011 by NewZed Quote Link to comment Share on other sites More sharing options...
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