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By Christiaan Poortman
Hello, I'm new on this forum and stumbled upon a new problem (or old) with my 2.5l 986 Boxster from 1997.
The problem occurs when the engine is started dead cold after sitting a few hours/overnight.
Engine starts immediately but the RPMs start to surge / hunt between 1100 and 700 RPM. This continues for about 10 seconds after which the idle smoothes out to the normal cold idle RPM.
The first pull away requires a tad more throttle then normal to prevent stalling. After this first pull, everything is almost normal and engine performance becomes better and better. When the engine is hot, the idle sits at 780 RPM with a minor fluctuation now and then (seems to be more than normal)
I've been to two shops (official Porsche dealer and local Porsche specialist). Porsche dealer couldn't find anything and the specialist found the camshaft sensor on the left bank to be unplugged - but now comes the strange thing - the cabling is nowhere to be found!!!!!!? Took the car home to check myself but didn't find anything.
No camshaft related codes to be found in the diagnosis and no CEL either.
Attached one pic showing the sensor and it's missing plug
Could someone help me out? - Is it possible for the engine not to throw a CEL when sensor is disconnected? - where is the sensor wire to be found?
Hi, I'd like to ask a question that has been asked, discussed, youtube videoed etc... My apologies, but I've read most of them and haven't found anything similar. I'm looking at a 2004-2006 Cayenne Turbo that I don't want to turn into an engine money pit. I've listened to 8, all cold and most have a very slight knock on the drivers side of the engine. I'm wondering if this is the beginning to the end or some explainable sound. You can only hear it once it drops to a low idle. I went to my local dealer in Denver and they stated they have no way to diagnose, would not perform a new car inspection, but would do a compression check. I realize this is tough to know when the dreaded engine knock may come due to extreme cold, piston expansion, etc...etc... I'm also aware that the turbos were less prone. If I'm going to drop a new engine into an old cayenne, I'd rather do it on a $10k one than $18k which is the present range for a 2004-2005 in CO. Thanks for anyone's help and as a newbie, I hope to purchase a Cayenne and give back via DIY but don't really want to deal with engine issues for 200k+. Thanks again, Frank
So recently i got the P480 code. Fan was running non stop on high. When i turned the car off it kept running on high so i pulled the fuse and went to bed. In the morning i threw in the fuse and the fan didn't run.....turned the car on (Cold) and after a few seconds went to high again. Turned off the car and it ran on high for a while then shut off.
So i had to do a bunch of work anyways so i pulled the fan assembly, here are the steps i've done so far:
AC fan works fine, this is only the main fan.
If i power the fan without connecting to the car (the small wires arent receiving signal) the fan stays off (which i think is good).
If i measure the car harness side, it shows the standard 12v and 0v on the plug. The signal wires show ~.3V and 12V
My guess was the 12v was the cause of the fan running.
To rule out the temp sensor i unplugged it, but the 12v signal was still there. plugged the fan in anyways and it was still running. I did notice when it was unplugged the car only shows as "normal" temp, it didn't peg to the top like i'd think it would.
Finally i found that F10 is the signal (Fan Final Stage)
Anyone have the wiring diagram or know where this 12v is coming from? I'm 99% positive it does NOT come from the main coolant sensor. And i'm also 99% my fan is working correctly, but i don't have the "before" voltage check to know for sure.
Any help would be appreciated.
What do people here use to clean their car exterior? Has anyone ever used Optimum No Rinse? I've heard it's pretty decent and very easy to use with little water. Any other good suggestions? I've had my car detailed once and they made caused damage to leather (scraped inside door panel with ring I think). My black C4S is beautiful when it's clean but that's only for about 5 hours :)
How often do people wax and what kind do people prefer that is fairly low labor intensive?
Maybe there's a good discussion going in another group but I didn't see one here...
Does anyone know the part number for the Cayhenne Turbo (2005) - Washer fluid reservoir cap? It is the blue cap visible on passenger side, under the hood. Mine has been flaking off little by little and does not look nice and pretty as it did when new. Looking for a Cayenne, I noticed quite a bit of these being in such state and assume this is just the heat getting to the cap (and improper material selecion during design).