Engine Cut Out while driving..
Thread Starter
AutoX
Joined: Oct 2015
Posts: 11
Likes: 0
Engine Cut Out while driving..
Hey I'm having some issues with my MY02 996 3.6.
I have had the car around a month with no issues. Last weekend I took it up great ocean road in Vic and copped a LOT of bugs on the way home so not sure if that's contributing.
The car starts and drives fine mostly but since that trip sometimes I get a surge of power with what feels like a thud and then the engine completely turns off while I'm driving (all warning lights appear due to the ignition position) but no warning lights when the issue occurs. Not safe or ideal. Any ideas? Has anybody had any experience with this kind of thing? When I try to restart after it cuts out I can't get it to start without giving it a bit of accelerator then it's fine again.. I've had spark plugs replaced and my mechanic drove the car without incident of course :-/
Could it be bugs? Or something more ominous?..
Thanks.
I have had the car around a month with no issues. Last weekend I took it up great ocean road in Vic and copped a LOT of bugs on the way home so not sure if that's contributing.
The car starts and drives fine mostly but since that trip sometimes I get a surge of power with what feels like a thud and then the engine completely turns off while I'm driving (all warning lights appear due to the ignition position) but no warning lights when the issue occurs. Not safe or ideal. Any ideas? Has anybody had any experience with this kind of thing? When I try to restart after it cuts out I can't get it to start without giving it a bit of accelerator then it's fine again.. I've had spark plugs replaced and my mechanic drove the car without incident of course :-/
Could it be bugs? Or something more ominous?..
Thanks.
Intermediate
Joined: Oct 2015
Posts: 47
Likes: 0
From: Central Mississippi
My car has a slight surge at around 1/4 or less throttle application (2002 C2 3.6 Tip). It's like I'm giving it gas and letting off repeatedly. If I give it more throttle it doesn't do it. Is that what yours is doing? Mine hasn't shut off though. I'm curious to know what is going on also.
Rennlist Member
Joined: Oct 2014
Posts: 444
Likes: 1
From: Milwaukee, WI
A surge at around 3k RPM is just the Variocam system activating, that's normal.
When you get the surge what Rpm is the engine at? Might just be a MAF enrichment issue. Do you have am aftermarket air intake? Sometimes over-oiling those filters will foul the MAF. Buy some MAF cleaner at the auto store and the tamper proof torx bit needed to remove it.
When you get the surge what Rpm is the engine at? Might just be a MAF enrichment issue. Do you have am aftermarket air intake? Sometimes over-oiling those filters will foul the MAF. Buy some MAF cleaner at the auto store and the tamper proof torx bit needed to remove it.
Intermediate
Joined: Oct 2015
Posts: 47
Likes: 0
From: Central Mississippi
I'm at low rpms, and just slight throttle during acceleration. I don't think it's at a specific rpm. The car came with a K&N intake so you are probably right regarding the MAF being dirty. Thanks!
Thread Starter
AutoX
Joined: Oct 2015
Posts: 11
Likes: 0
According to my mechanic it's the engine speed sensor/cam sensor which is faulty. Part ordered $360 so I will let others know if it sorts the problem of power surge then engine cut off once it has been replaced. Thanks so far for everybody's input.
I thought it may have been the immobiliser if all else failed but that was always a long shot..
My car is stock no mods (air filters etc) so presumably easier to identify the fault.. We will see..
I thought it may have been the immobiliser if all else failed but that was always a long shot..
My car is stock no mods (air filters etc) so presumably easier to identify the fault.. We will see..
Thread Starter
AutoX
Joined: Oct 2015
Posts: 11
Likes: 0
According to my mechanic it's the engine speed sensor/cam sensor which is faulty. Part ordered $360 so I will let others know if it sorts the problem of power surge then engine cut off once it has been replaced. Thanks so far for everybody's input.
I thought it may have been the immobiliser if all else failed but that was always a long shot..
My car is stock no mods (air filters etc) so presumably easier to identify the fault.. We will see..
I thought it may have been the immobiliser if all else failed but that was always a long shot..
My car is stock no mods (air filters etc) so presumably easier to identify the fault.. We will see..
The problem child..
Trending Topics
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
Theon Goes Full Carbon Fiber With Stunning New Build
Verdad Gallardo
Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile
Joe Kucinski
10 Used Porsches Are Selling for Way Too Cheap
Joe Kucinski
Tuner Is Converting Porsche 911s Into Shooting Brakes
Verdad Gallardo
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917
Verdad Gallardo
Is This Convertible Cayenne A Steal, Or A Returnless Investment?
Verdad Gallardo
10 Best Non-Flat Six Porsches You Can Buy For Under $100K
Joe Kucinski
Porsche's Top 5 Most Questionable Naming Decisions
Verdad Gallardo
Pogea Racing's 964 Porsche 911 Reimagination Stands Out in a Crowded Field
Verdad Gallardo
Race Director
Joined: Sep 2012
Posts: 10,424
Likes: 229
From: SOcialist republic of CALifornia
I don't remember any MAF issue resulting in the car shutting down completely. If the MAF is fouled, you'll get fuel trim/lean/similar codes; if the MAF is completely hosed, you'll get codes about the MAF voltage being incorrect/out of range.
Metalbattle, let us know if replacing the part(s) you ordered does the trick.
Metalbattle, let us know if replacing the part(s) you ordered does the trick.
Nordschleife Master
Joined: Aug 2005
Posts: 5,143
Likes: 10
From: Spring, Texas (The Woodlands)
According to my mechanic it's the engine speed sensor/cam sensor which is faulty. Part ordered $360 so I will let others know if it sorts the problem of power surge then engine cut off once it has been replaced. Thanks so far for everybody's input.
I thought it may have been the immobiliser if all else failed but that was always a long shot..
My car is stock no mods (air filters etc) so presumably easier to identify the fault.. We will see..
I thought it may have been the immobiliser if all else failed but that was always a long shot..
My car is stock no mods (air filters etc) so presumably easier to identify the fault.. We will see..
Thread Starter
AutoX
Joined: Oct 2015
Posts: 11
Likes: 0
So far so good. No engine cut off since replacing the cam position sensor (touch wood). If pain persists I'll let members know. So if your engine surges with a bit of a thud then your engine cuts out whilst driving then it's likely your cam position sensor. Although a couple of times it cut out without the surge. Was happening at different rev ranges and speeds.
Hope this helps others encountering the same problem. Thanks to all who contributed with their thoughts :-)
Hope this helps others encountering the same problem. Thanks to all who contributed with their thoughts :-)
Nordschleife Master
Joined: Aug 2005
Posts: 5,143
Likes: 10
From: Spring, Texas (The Woodlands)