SCOTITUDE

remember me??????

bigbuzuki

To the boys with starting problems, do you have KESSY ?

touareg

If you mean by the keyless entry, I do not have it.

That was my other thought too, that something was not initializing fast enough or properly.

However I can insert the key, turn to acc, then wait a few seconds for all the lights to bling and the sounds to bing, try it and nadda....

Slow Guy

For a couple of months after replacing the battery it didn't do it again but over the last month I think it's done it twice, so it hasn't gone away.

I don't believe it's starter related, it doesn't do a thing at the starter (no turn over, no click). I think it's just an electrical oddity. I've never had it fail where releasing the key and turning the key a second time failed to start the car.

Just another Porsche quirk I think.

slider172

Mine does it too.
I dont have keyless entry, and have replaced the battery.
I did not know one might have 2 batteries. Where besides under the drivers seat should I look?

Slow Guy

In the rear, under the lid. Where the subwoofer is on those that don't have the 2nd battery.

Yes, I know it's not called a subwoofer but having a brain fart right now.

slider172

My Bose thing (round, could look like a woofer) is under the spare tire but no room for anyting else under there.

touareg

So I tried testing the battery via the jump terminals in the engine bay today. That doesn't seem to be a good point, seems like there is a capacitor inline there somewhere, maybe to protect the system from a surge.

I unlocked the car, popped the hood and put the multimeter on the jump points. It started at around 13.4 volts and kept climbing, up past 15.5 when I stopped checking after a minute or so. (No car was not running)

So I ordered a M10 Triple square bit and plan to pull back the seat to check it off the battery directly.

touareg

Another weird thing to add to the mystery...

Another issue, went back to my car at lunch to check for leaking coolant (found none, but it could be in the engine tray) and had the drivers door open to pop the hood. Car alarm armed (like it does when you never open the door) and then the alarm went off.

I wonder whatever sensor this was that was stuck, maybe thinks the car door was never opened, never primes the fuel pump and anti-theft is still partially enabled?

I closed the door, locked, unlocked opened and cleary heard the fuel pump prime. Then started the car, 1st time, no issues...

I wonder where these door open sensor are, or if it is something in the drivers handle that triggers the door open in regards to the alarm system.

Grasping at straws here....

Slow Guy

Yes, if you have the Bose thing you don't have the 2nd battery.

1pcarnut

This may be completely unrelated but has some similarity to a problem a friend had yesterday. His 993 wouldn't start. It would sometimes crank but not fire and other times not crank at all.

First thought was DME relay so we tried the one out of mine. It fired for just a moment then quit and went back to it's old habits. Another symptom was the door would not always lock/unlock. A few weeks earlier he had somehow triggered the alarm, not quite sure how he did it but it was somehow possibly part of the problem.

After much head scratching and trying of a third relay, we decided to begin from scratch. Disconnected the battery, while disconnected we turned the key to the "on" position to discharge any capacitors in the system, then turned it off. Then we hooked up the battery, locked it, then unlocked it, tried to start it and presto, started immediately on his original relay and not further issues. Turned it off and restarted multiple times, lit up every time.

Just thought I'd throw this out there.

touareg

Cool, I should get my triple square bits this Friday, if I have time Saturday and its not freezing out (Boston Weather) I will attempt pull the battery and lose my settings

Sunday is off limits, want to focus on the Pats

bigbuzuki

Your spot on with your diagnosis of the door sensor etc.

Faulty drivers door handle switch will cause the alarm and no fuel pump prime scenario you describe.

Had the same defects about a year ago, dealer changed the switch in the drivers door handle and fixed it.

As for the starter motor hiccup, I get it about once a month and have not chased it.

CarreraCup03

You might have a better time checking the battery and relays than watching the game on Sunday. Go Giants! Touche!

philg3

I've experienced no start on first turn, then starts on second a couple of times (2004CT). On the second try I heard what sounded like a relay click -- likely switching to the battery below the Bose Subwoofer. Replaced main battery, and problem went away.

I've found that the vehicle is very sensitive to voltage, and that if the battery drops below about 12.2V, bad things happen such as losing Comfort settings. If vehicle sits for about a week, voltage tends to decline. I've found this voltage tester useful from Amazon:


In addition, I've found this battery maintainer very useful, if the vehicle is unused for a few days:


This unit has some nice features, and is highly regarded by it's customers -- 5 Star Amazon rating.