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    merc 454 magnum stalling

    a friend has a 1999/98 454 magnum fuel injected motor,just had the head reconed,now he has refitted them,and found that the engine keeps stalling when throttle is put to idle position,if he keeps it just of idle it is ok,i was thinking it was the idle passage in the throttle body blocked,or air...
  2. N

    low fuel pressure

    hi hope some one can help,afriend has a merc 454 magnum 7.4ltr bigblock,year 98 or99,fuel injected motor, fitted fuel pressure gauge to fuel rail ,fitted a new pressure regulater to rail,at idle reads 20psi,bring the rpm to 2000 and it sits at 15psi,remove the vac hose from regulater at idle and...
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