Hi all. I went out in the scorching heat for a great earlier and had the air con cranked right up. Not bad I have to say. Way better than my old Porsches. But I filled her up with petrol (98) and the gauge only showed half full. Remember it's been played with for weeks on end this little car. I am "assuming" they have left a cable off or something because it was fine before. It's had a new fuel pump fitted. As there are two tanks would that made sense to show half full if a cables off on one side? The picture shows a floating joiner I found, and I was wondering if anyone knows if this is supposed to go somewhere, or maybe it's a Spider thing. That yellow clip (with the classy drawing skills with the arrow) was loose and not connected so I put it where it belongs. I have done about 300ks today so it's probably used half a tank anyway by now. So it's hard to say if that yellow clip made a difference or not. Anyone have an idea where to look? FYI, still no CEL. happy happy happy Image Unavailable, Please Login
Graham- Could be the actual fuel level indicator attached to the LH fuel pump. On early 360s, the indicator and float itself are separate parts. On later pumps, the entire pump is supplied with the indicator and float. Image Unavailable, Please Login
I believe that yellow clip is used to depress the tang on the electrical connector (at least that was what I saw in this video of someone replacing his fuel pump -- around the 6 minute mark). Alan https://www.youtube.com/watch?v=tPn6GemTeiA
I think the yellow clip secures the electrical connections to the pump. Just replaced the pump on my '03 spider. Fuel gauge on new pump was faulty...showed 100% empty then bars came back after 20mins drive. Replaced again, and now fuel gauge shows 100% full even after 50mile drive....then I start to lose bars . Not sure how well these things are calibrated.
Check also that the fuel tank has not imploded from a bad evap control system. Fairly common, needs replace fuel tank, engine out or at least moved to one side. Don't dismiss this to the internexperts, investigate properly. The tanks will collapse and be pretty obvious.
Imploded fuel tank! I bloody hope it's not as severe as that. The gauge reading was fine before Ferrari did the fuel pumps etc. That plug I'm holding in my hand in the picture.............is that supposed to be loose? Could it be a fuse? Must be something simple.....................I hope.
Thanks Alan I had already watched this clip. It's good. But there's a spare connector floating around. I will pull the LH pump out and make sure the float is free and not stuck or something. Pretty easy to get at from what I can see.
I have the same spare connector ... guess that you have no secondary air system. This connector is supposed to command the valve of this system (connector 31S in the wiring diagram).
Graham perhaps just try loosening the round bezel and then rotating the pump a few degrees left and then right.. to find if there is any binding of the float.
My 1999 (coupe not spider) also has that spare connector just hanging out... I think this is normal. Mine also has a pessimistic fuel gauge and I've had problems with my EVAP system. I would love to hear more info from Brian about imploded fuel tanks.
Kurt I got home tonight and tried just that but na. Never helped. Ferrari are sending me a new pump at no charge. That'll sort it. Cheers
Scott- Imploded tanks are caused by a faulty evaporative system that allows a vacuum to build up in the tank. The lower the fuel level goes with vacuum building, the worse the stress on the tank. If you remember grade school science class with the large gas or similar can with only a little water in it, same thing. You heat the water until it is boiling and water vapor forces out most of the air in the can. Then you seal the can full of water vapor. Pour cold water over the can and the water vapor condenses, leaving a partial vacuum. The can would then collapse into itself. Same thing with a fuel tank.
