Could you please tell me where is the critical ground point of 348? I had a clicking fuel pump's relay problem. After chainge the foot rest fuse box and fuel pump, the problem is still. I think it shold be GROUND problem. Thanks
Well one main ground point is for the negative cable coming off if the battery. It gets grounded to the frame, and also is attached to the gear box, from the frame. There is also the issue with the bullet style connectors running to the starter from the battery, and, as I said, from the battery to the frame. If you still have those bullet connectors, I recommend putting in solid cables in place of them.
A faulty crank sensor or crank sensor wiring problem will cause the ecu on that side of the engine to turn off the fuel pump relay as a safety precaution (e.g. engine stopped by a wreck, fuel pump flowing fuel through broken fuel lines via the wreck).
Thank you Ernie an No Doubt. The crank sensor just changed. I'll recheck the wire to ecu but it out of reach in the fire wall. DO you have any solutions?
Check to make sure that the wiring loom, going through the fire wall, hasn't been cut into buy the metal in the hole, in fire wall. There is a rubber boot that is supposed to be there. If it isn't, the metal could have worn into the loom and caused a short. It has happened to others in the past. It may not be the cause of your problem, but then it again it may.
Ernie , it's time to change that bullet ground connector to my battery, should I connect the new solid cable to the frame or the gear box, thanks Bill
Just to clarify, do you have a front battery or a rear battery? If you have the rear battery, your negative cable should go from the battery post to the frame, and then from the frame (same bolt) to the gearbox - a long cable and a shorter cable.
What Jeff said. And don't forget to replace the positive bullet connector under the airbox with a solid cable while you're at it. Basically, solid cables all the way around. From the battery to the frame, frame to the gearbox, and from the starter to the battery, all solid.
Started the 348, and I noticed that all the gauges stopped working, ground is definitively solid, no tach,no oil pressure,no horn,nothing, just lights and signals work, what now!
Did you remember to connect the loom up under the left rear fender well to the positive terminal on the battery? It should have been attached to the connector on the old bullet connector at the battery. So have a look at that and make sure it's connected. The next thing you'll want to look at is the round twist on connector, on the left rear shock tower, in the area of the charcoal canister. Check the condition of the connection.
Ernie probably not the issue but as far as the fuel pump what about the roll over protection sensor malfunctioning. I say probably not because seems like there's other problems?
I put everything back to where it was connected, Let me back up a little, I took out the 348 last week,and started it up , and noticed that it wasn't running right, but gauges were working. Than I checked the coil packs(switched) no change,with the car running I slightly moved the bullet connector and the car stalled, as I moved the negitive bullet connector the ignition was clicking on and off. I cleaned it up connected it and she started, but no gauges were working. This am I changed the bullet connectors to solid lines, she started right ,sounds better, can't test drive (rain). But still no gauges
Ah okay. Have you checked the fuses? If they check out okay then have a look at the connections on the back of the instruments. To remove the instrument pod is simple. Remove the two screws, one on each lower corner of the pod, holding in place and then lift it up. It also helps to have the steering wheel lowered all the way down. And again, check the twist on connector on the left rear shock tower.
weather cleared too the ferrari for a ride runs perfect real strong, only signals and lights are working, no horn, no gauges, no heater,no a/c,no fan,, I checked the connector near the rear shock seems ok and tight,
Fuses in the passenger side foot well. Most of the systems that aren't working on your car have their fuses there, but I'm not sure how you could have fried so many...
Strange sequence of events, not sure what to suggest, but you might want to look at the main "buss bar" fuse strip, which is located behind the fuse panel in the footwell. Make sure the nuts that hold the strip are tight, and the connections are clean and dry.
