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My 1999 911 Carrera started smoking at a streetlight. Very smelly blue smoke was coming from under the engine cover. I pulled over and popped the cover. Blue smoke was coming from somewhere under the engine (not the exhaust). The engine stopped very suddenly.
We don't have a local Porsche dealer, but the Subaru dealer owns a bunch of 911s and he has a couple Porsche mechanics. I had it towed there.
The C1 fuse ("Engine Electronics") was blown. They replaced it, but as soon as they turned the key, the "cam adjuster wiring harness" (I do not know what this is) began to smoke, and the fuse blew again.
They disconnected the cam adjuster wiring harness (I don't know what this means, and neither did the service advisor), and the fuse stayed intact, and they got the car started. They were able to drive it out to the parking lot with no problems.
They said I need a new cam adjuster wiring harness (again, no idea what this is), and this would require an engine out repair, which they could not do. They estimated this work at $5,000 to $6,000.
Additionally, they did not know how drivable the car was with a disconnected cam adjuster wiring harness.
So ... how bad is this? (Service report image attached.)
To all 996 owners with PSE, especially those with a 4S.
I think my 996 C4S exhaust behaves oddly. I think it's a fault but you might tell me it's normal behaviour. The problem is that I've always had this 'fault' on my car so I don't know if it's a fault or intentional behaviour. If you have the same car, perhaps you can shed some light on this.
When I start it, it's noisy and sounds great. It quiets down as it runs for the first 5 mins.
I have the PSE system and when I press the button you can audibly hear the exhaust note change - quieter when on and louder when off. Default is off so loud.
Here's the rub. Up to around 1500rpm it's got a good noise then it fades out to the point where it's so quiet it's like driving my partners Yaris. If I keep accelerating, when I get to around 3500rpm the exhaust suddenly gets loud again. I mean it's immediate - like someones flipping a switched marked loud. It sounds great.
It happens in 2nd and 3rd gears most noticeably and the PSE is in the 'off' position. If I have the PSE button on, then it's just quiet all the time and that works fine.
So why the silent spot?
I did read somewhere that German market cars might have had a system that turns on and off the PSE at certain speeds to prevent people driving round residential streets with a loud exhaust but information is thin and I don't think I was ever on UK cars.
I have also had a small go at checking vacuum pressure at idle on both sides of the Y piece in the engine bay but both hold good pressure. One side has only a microscopic leak but not enough to cause this kind of issue.
Hi everyone, I just got a set of gauges for a 2005 996. I'm building a simulator for PC and would like to wire the gauges to work with racing games. I am in need of the wiring diagrams for the cluster. If anyone has a picture or manual that can help me out it would be great! Looking for inputs, power, signal.
2010 Carrera S 6M Cab 150k miles
TLDR: Dealer tells me the code is 2402 and Durametric returns 0024 with a description that matches the dealer.
I am getting screwey values when I look up actual values.
I try to clear codes and they don't seem to clear.
Has anyone else seen this?
I got CEL after about 1000 miles after replacing the catalytic converters myself. I pulled the codes with my Durametric and got:
0024 - DMTL Diagnosis module for tank leakage; pump drive rUpper limit exceeded
0010 - Intake camshaft driver
I took it to Porsche because I wrongly figured this was related to my cats. They pulled the codes and said the car was throwing 2402 and that the 0010 was in the system but had been there for a long time and was not relevant.
Now I had cleared that 0010 about a half dozen times so I thought it was fresh. It did not register at the time, but that means my reset did not work.
They said that it would cost $1,100 to replace the DM-TL and filter. It was very likely the right thing to do because they tried to actuate it and it would not spin.
As I have dropped about $14k on my Porsche habit in the last 30 months and my wife has had about enough of this, I paid the diagnostic fee and replace the parts myself (saving about $700).
Now my Durametric is still pulling the same codes plus a new one:
0014 which it says is No signal/communication
That code, like the 0024, is not in my copy of the Porsche 997 essential companion.
So when went to look at live values relevant to the DM-TL the Durametric was putting in some weird results. Percents or bars when the units should have been seconds.
Background: DM-TL is a complicated pump/sensor that determines that there are no leaks in the gas fume recycling system. It pulls low amps if there is a leak, so a high value means there is a problem with the pump or maybe a short.