car got wet in rain, won't iddle above 2,000 rpm!

[Perfectlap]

just left it with Ray Catena Porsche service. I gave the car to the service consultant and told him that the car had an error code P1502 fuel pump realy short circuit and that I cleared the code myself. I also asked him to look at that
annoying infrared sensor that has come loose and is lowering the window every time I go over a bump. They also offered to remove two dings (door and rear quarter) for $130, I agreed.

Twenty minutes later the consultant returns with the tech saying I need a new hard top relay and throttle body.

I informed the guys that the hardtop relay ($100+) is brand new bought within the last month at their part desk. He said he would take a look at it again.

Now for my big problem,
Initially I didn't inform the service consultant that the car got wet with top down and started acting up an hour later. I told them about the incident asked if they could simply replace the fuel pump relay and see if it the car would fire up correctly since the error message said "short circuit...."
Their response was that they put in a throttle body from another car and the car started up fine. What's peculiar is that the throttle will act perfectly fine if I can get the car started correctly from the get go. This only happens if I stall the car intentionally and imediately attempt a restart. I drove a long distance to the dealer (I know bad idea) sifting gears in out of neutral and the throtle and idle were perfect. As soon as the car is turned off back to limp mode.

They gave me a loaner for $50 and will call me with their reassesment.

Am I crazy or does it sound like they they aren't looking closely enough?

[98Boxster98]

When you brought the car for service, were you still having throttle problems? (Re-read you post and see that you still got limp mode.) Did your Boxster throw another CEL for short in the fuel pump? If no to both, I am inclined to think that perhaps you brought the car to be service a little early. A good drying out may cure the short. Just don't drive while it dries out.

It would also leave me uncomfortable if the tech came back with as quick diagnosis as he did. However, I'm no mechanic; I just play one on TV.

PS - I just checked over at Renntech. For fuel pump relay output stage, short to B+, the listed P-code is P1124, fault code 167, fault type 4. For P1502, Throttle jacking unit, spring test.

[Perfectlap]

Originally Posted by 98Boxster98

When you brought the car for service, were you still having throttle problems? (Re-read you post and see that you still got limp mode.) Did your Boxster throw another CEL for short in the fuel pump? If no to both, I am inclined to think that perhaps you brought the car to be service a little early. A good drying out may cure the short. Just don't drive while it dries out.

It would also leave me uncomfortable if the tech came back with as quick diagnosis as he did. However, I'm no mechanic; I just play one on TV.

PS - I just checked over at Renntech. For fuel pump relay output stage, short to B+, the listed P-code is P1124, fault code 167, fault type 4. For P1502, Throttle jacking unit, spring test.

Throttle jacking unit!
hmmm....I wonder if I was looking at the codes for the 996..
are they different?

[98Boxster98]

Originally Posted by Perfectlap

Throttle jacking unit!
hmmm....I wonder if I was looking at the codes for the 996..
are they different?

DME 7.2 - Boxster (986), S MY00-02; Carrera (996) 4, 4S MY99-01; Carrera (996) MY00-01

DME 5.2.2 - Boxster (986) MY97-99; Carrera (996) MY99

For DME 5.2.2, P1502 is Fuel Pump Relay Output Stage - Short Circuit to B+

[bigislandboxster]

Any resolution to this problem Perfectlap? Was curious what the outcome/verdict was on this issue..

[Perfectlap]

$570

98Boxster was correct I was looking at the wrong error code (for earlier Boxsters).
An entirely new throttle body was installed. Part was like $350 and the labor was two hours. Car works fine now.

I never got an explanantion as to why the throttle body would go short after the interior was soaked. The way these guys were operating on this day seems like they get an error code read on their computer, the computer tells them what part needs to be replaced (in my instance the tb) and the tech installs it.

I talked to the tech and he showed me the 5 printout of what their computer tells them to fix. Seems like there is VERY LITTLE guess work.

as for the top relay, that was annoying. The new relay that I installed myself had come loose. They pushed it in all the way and the windows stoped lowering when going over the bumps with top down. This close to spending $130 needlessly.

[bigislandboxster]

Good to hear you are up and running

I would be curious as to how that rain may have affected the throttle body as well...We had a torrential rain out this way a week or 2 ago, tho my top was up....Was more concerned about the chunks of hail damaging the exterior of the car! No damage to the car, just a cut on my forehead as I got caught out in it while fishing....