Nissan Repair: Electrical short., fuel pump relay, nissan maxima

Question
QUESTION: Have a 1998 Nissan Maxima. No prior issues. Yesterday while driving, the Vehicle stalled and would not restart. Towed it home, started testing everything. Its continues to blow fuse #17 (eng cont) Replace the fuse and everything is fine again. Its drivable as long as there is no hard acceleration. Once its "floored" the fuse blows again. Back to square one. I know there is a short somewhere, have you had any issue with this? Have checked the o2 sensor wires and looked for any other obvious shorts. Finding nothing.

ANSWER: Rich,

The ECM has a short and I would speculate that you are going to have to use a breakout box to find it.  There might be a relay that is shorting causing the problem.  I have to be specific that the ECM is not the issue but something it is driving.

---------- FOLLOW-UP ----------

QUESTION: Cool. i absolutely appreciate the help. any ideas of which relay? I keep coming to the Fuel pump relay and the Inhibitor relay.Just based on what the #17 fuse is powering. Along with all the EGR and fuel pump, which seems to have 2 fuses, and coolant, starter and anti theft. I'm racking my brain. Just gotta test every relay running off that fuse?

Answer
Rich,

I would not think the inhibitor relay.  I would check the fuel pump circuit and relay since when demand is needed the fuse blows.  Nissan uses a variable power circuit to the fuel pump so it does not use the full 12 bolts unless it is floored.