Re: Key Fob Inconsistant Function
Originally Posted by
GraphiteGhost
Remember, the fuel pump operates upon key rotation to 'ON' until fuel system pressurization, there should be a whirring at the right rear wheel well underneath inside frame. Can you have someone press the interior lock/unlock button (upon command) a couple of times until the system can be reliably isolated as the right pump motor noise? Listen closely at the lower right rear bottom of the trunk (car not running), so you can hear how long the pump for the pneumatic locking system is/is not running? Since this also involves the passenger door (sometimes, correct me if I am wrong) it is like 180 is focusing on, an air leak in that branch line somewhere. I haven't seen (or remember seeing) a schematic of the tubing routes/ports so there may be a long way to go for that trunk actuator. A small leak may open/close the passenger door but being at a threshold where it sometimes doesn't open the passenger door actuator (but) in all cases the trunk actuator is starved for the necessary activation all the time. The dash button should work better than the FOBs, as it is direct wiring not effected by any interference or other EM/battery influences. If the dash door control is not working in one position (wasn't clear enough it operates the rest without problems in lock/unlock mode), you have more problems than a possible line leak.
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I think the fuel pump runs continuously, with the lines full and at pressure the excess fuel pumped is diverted back to the tank. I think that is what you mean but that is not the way it reads in your post.
The trunk actuator line runs forward to the bulkhead up the inside of the car and then through the right hand corrugated grommet at the top of the hatch and down beside the glass under the trim to the actuator. This has got to be close to 8' of hose, the normal break point is in the corrugated grommet between the hatch and the car body.
In the following photo you can see the three hoses coming from the pump which is bottom center under the foam, the first hose (marked red) goes vertically to the gas filler door, another line has a Tee in it, the Teed line goes up and on to the hatch with the line continuing on to the passenger door. The third line goes to the drivers door and I suspect that on roadsters it is Teed and goes to the console lock.
In this schematic of the pump circuit it shows the left hand door line ted for the hatch/trunk lid, this is an error as it should be the passenger side door that is Teed.
Last edited by onehundred80; Dec 13, 2015 at 09:02 PM.