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badlands
Montreal


Joined: 05 Feb 2015
Posts: 525
Location: London


PostPosted: Thu Oct 31, 2019 8:38 am    Post subject: C2 *** - iris blue 993, anyone here? Reply with quote

Dropped my car off at well-known indy this morning for its annual service and our cars are spitting image, even down to the turbo twists.

Having seen your car, think I'm going to switch the ambers back to clears at the front - less retro, but looks classier.

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_________________
current: 993 carrera coupe, manual, iris blue, bilstein pss10
ex 964 c4
ex 993 carrera cab
 
  
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Thafrix
Trainee


Joined: 14 Apr 2014
Posts: 71



PostPosted: Fri Nov 01, 2019 12:57 pm    Post subject: Reply with quote

If the well known Indy is in St Albans and the reg of the car ends in FRX then that's me!! Nice to "meet" you

I personally don't like the ambers as it's too retro for the car's shape but that is of course just my opinion

I bought the car almost 6 years ago from another 911uk member and he had done almost all the work it needed. It has bene nigh on flawless in all that time including two trips thorugh Europe!

Currently trying to diagnose why it misfires/struggles to start when it sits in rain. Once it has warmed up the issue disappears but it's annoying to say the least.

Unfortunately the indie can't seem to rpeeat the issue - any suggestions welcome......
 
  
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Thafrix
Trainee


Joined: 14 Apr 2014
Posts: 71



PostPosted: Fri Nov 01, 2019 12:58 pm    Post subject: Reply with quote

PS is that photo of your car at Brands Hatch from the recent PCGB gathering there? I was also there but in my 05 Boxster S - brilliant fun
 
  
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pierrebear
Spa-Francorchamps


Joined: 27 Sep 2017
Posts: 332
Location: Jersey


PostPosted: Fri Nov 01, 2019 1:04 pm    Post subject: Reply with quote

Thafrix wrote:
If the well known Indy is in St Albans and the reg of the car ends in FRX then that's me!! Nice to "meet" you

I personally don't like the ambers as it's too retro for the car's shape but that is of course just my opinion

I bought the car almost 6 years ago from another 911uk member and he had done almost all the work it needed. It has bene nigh on flawless in all that time including two trips thorugh Europe!

Currently trying to diagnose why it misfires/struggles to start when it sits in rain. Once it has warmed up the issue disappears but it's annoying to say the least.

Unfortunately the indie can't seem to rpeeat the issue - any suggestions welcome......


Sorry to barge into the conversation, but I'd be very interested to hear what anyone else has to say re misfires/struggling post-rain. Tends to happen on colder/damp mornings when the engine is cold and at around 2-3k revs for me...I am flummoxed!
_________________
1995 Carrera 2 coupe manual, midnight blue
EX 997.1 Carrera 4S coupe manual, basalt black
EX 2003 Mercedes SL500, green black (dark blue!)
 
  
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Thafrix
Trainee


Joined: 14 Apr 2014
Posts: 71



PostPosted: Fri Nov 01, 2019 1:14 pm    Post subject: Reply with quote

Bingo.

That is exactly it. It has a new distributor, (less than a year old), full injector overhaul done at the same time, the ignition leads appear ok (according to Indie), it is not a DME issue, the car is maintained regardless of cost etc

Mine will sometimes bog down at about 5k revs too once I am in second gear

To be honest it is rare it is left outside overnight as it is not a daily driver, but I do use the car throughout the year for trips out of London etc and during these wetter/damper/colder months the problem appears but only intermittently.

Extremely frustrating
 
  
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pierrebear
Spa-Francorchamps


Joined: 27 Sep 2017
Posts: 332
Location: Jersey


PostPosted: Fri Nov 01, 2019 4:11 pm    Post subject: Reply with quote

That sounds exactly the same as mine.

Mine is a daily, and it is annoying on those colder morning starts. As you say, it only happens every now and then though and so is very frustrating to explain to mechanics who've not been been able to replicate the issue and thus can't really investigate.
_________________
1995 Carrera 2 coupe manual, midnight blue
EX 997.1 Carrera 4S coupe manual, basalt black
EX 2003 Mercedes SL500, green black (dark blue!)
 
  
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Jitstar
Newbie


Joined: 23 Nov 2015
Posts: 37
Location: Birmingham


PostPosted: Tue Nov 05, 2019 1:54 pm    Post subject: Reply with quote

Sorry to hijack also, but I’m also suffering this problem. Changed caps, rotors, and hr leads, and seemingly fixed it for while. But it’s returned. Cars not a daily but regular weekend use; so currently under a cover. Need to get this fixed!
 
  
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Jitstar
Newbie


Joined: 23 Nov 2015
Posts: 37
Location: Birmingham


PostPosted: Sat Feb 08, 2020 1:50 pm    Post subject: Reply with quote

FWIW I’ve finally got this fixed! It my case it’s been the knock sensors that have failed. Apparently a super, super rare occurrence - but it’s done the job. Hope this helps others who’ve had a similar seemingly super rare problem.
 
  
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pierrebear
Spa-Francorchamps


Joined: 27 Sep 2017
Posts: 332
Location: Jersey


PostPosted: Sun Feb 09, 2020 11:44 am    Post subject: Reply with quote

Hi Jitstar- thanks for that. Did yours also only big down occasionally? Will look into that!
_________________
1995 Carrera 2 coupe manual, midnight blue
EX 997.1 Carrera 4S coupe manual, basalt black
EX 2003 Mercedes SL500, green black (dark blue!)
 
  
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Thafrix
Trainee


Joined: 14 Apr 2014
Posts: 71



PostPosted: Sun Feb 09, 2020 7:09 pm    Post subject: Reply with quote

Jitstar thanks for the update on this issue - not sure if my indie checked the knock sensors but will find out

Can I please just check how your problem was manifesting itself? Was it random misfires or was it specifically when left outside in the wet?

Many thanks
 
  
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Jitstar
Newbie


Joined: 23 Nov 2015
Posts: 37
Location: Birmingham


PostPosted: Tue Feb 11, 2020 8:54 am    Post subject: Reply with quote

Hi guys. So my issue was manifesting itself after being left out in the rain, or during heavy rain.

The car would start normally then the car would misfire and then stall, and also not rev out until the car got warmed up - 10-15 minutes of running.

I left it garaged, after being caught out in the rain but then it wouldn’t rev past 5k, and would also have stalling issues.

Had the knock sensors done, and it’s back, but alas after being outside in the rain the original problem has returned. Got the car garaged, and it’s running smooth and revving out, so leaving it there for drier day to take out and see how it is.

It’s had new dizzy caps and rotors, ht leads, plugs, knock sensors, coils. Fuel pressure and flow rate have been checked, and the state of the cats. It’s a problem that has stumped some very highly regarded indies, and it’s obviously very frustrating!

It’s been suggested it could be changing to an RS style wing that lets in more water - but I recollect it happening a good few years back after heavy rain with the original wing and then disappearing again for years.

Definitely a water ingress problem - but just need to figure out what it’s hitting and affecting.

Til then I’ll leave it until Summer to get back on top on as I’m currently doing a lot of work to another car, so will shift my focus.


Sorry for the long diatribe - let me know how you guys get on - I’ll let you know if I make any other discoveries.
 
  
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HPNer
Hockenheim


Joined: 25 Jun 2014
Posts: 746
Location: Jolly Boyos Country


PostPosted: Tue Feb 11, 2020 12:09 pm    Post subject: Reply with quote

It could be the crank position sensor. Mine was 'crushed' and the various symptoms, frustratingly irregular and difficult to repeat, assured an almost impossible diagnosis.
The good doctor (my superlative engineer) diagnosed and fixed.
The car has not missed a beat since . . .
Thumb
_________________
Today, I shall mostly be driving my 993 . . .
-------
You've bought the ticket, so take the ride . . .
Faster, faster, faster, until the thrill of speed overcomes the fear of death...
 
  
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pierrebear
Spa-Francorchamps


Joined: 27 Sep 2017
Posts: 332
Location: Jersey


PostPosted: Tue Feb 11, 2020 1:28 pm    Post subject: Reply with quote

HPNer wrote:
It could be the crank position sensor. Mine was 'crushed' and the various symptoms, frustratingly irregular and difficult to repeat, assured an almost impossible diagnosis.
The good doctor (my superlative engineer) diagnosed and fixed.
The car has not missed a beat since . . .
Thumb


Christian?
_________________
1995 Carrera 2 coupe manual, midnight blue
EX 997.1 Carrera 4S coupe manual, basalt black
EX 2003 Mercedes SL500, green black (dark blue!)
 
  
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HPNer
Hockenheim


Joined: 25 Jun 2014
Posts: 746
Location: Jolly Boyos Country


PostPosted: Wed Feb 12, 2020 12:37 pm    Post subject: Reply with quote

Indeed so.
The man's a genius!
Thumb
_________________
Today, I shall mostly be driving my 993 . . .
-------
You've bought the ticket, so take the ride . . .
Faster, faster, faster, until the thrill of speed overcomes the fear of death...
 
  
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Thafrix
Trainee


Joined: 14 Apr 2014
Posts: 71



PostPosted: Sun Feb 16, 2020 5:22 pm    Post subject: Reply with quote

HPNer wrote:
It could be the crank position sensor. Mine was 'crushed' and the various symptoms, frustratingly irregular and difficult to repeat, assured an almost impossible diagnosis.
The good doctor (my superlative engineer) diagnosed and fixed.
The car has not missed a beat since . . .
Thumb


HPNer can I ask - was it manifesting symptoms when it got wet or did it misfire regardless of whether wet or not?

Many thanks
 
  
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993tt
Trainee


Joined: 28 Jan 2005
Posts: 71
Location: Devon


PostPosted: Mon Feb 17, 2020 1:04 pm    Post subject: Reply with quote

In 17 years with the 993 I have had this twice, once in Calais and once in Birmingham. Both times the car had, unusually, been sitting outside in torrential rain. Quick liberal spray with WD40 along both banks and over the distributor, problem solved. I also had the same thing with a 3.2 carrera back in the 90s solved the same way.
If the weather continues in its current vain it could become a more regular problem.
 
  
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Thafrix
Trainee


Joined: 14 Apr 2014
Posts: 71



PostPosted: Mon Feb 17, 2020 1:09 pm    Post subject: Reply with quote

993tt wrote:
In 17 years with the 993 I have had this twice, once in Calais and once in Birmingham. Both times the car had, unusually, been sitting outside in torrential rain. Quick liberal spray with WD40 along both banks and over the distributor, problem solved. I also had the same thing with a 3.2 carrera back in the 90s solved the same way.
If the weather continues in its current vain it could become a more regular problem.


993tt excuse the silly question but when you say along both banks what do you mean? Where are you spraying the WD40?

Many thanks
 
  
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993tt
Trainee


Joined: 28 Jan 2005
Posts: 71
Location: Devon


PostPosted: Mon Feb 17, 2020 2:09 pm    Post subject: Reply with quote

Spark plugs
 
  
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Thafrix
Trainee


Joined: 14 Apr 2014
Posts: 71



PostPosted: Mon Feb 17, 2020 2:11 pm    Post subject: Reply with quote

Many thanks
 
  
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HPNer
Hockenheim


Joined: 25 Jun 2014
Posts: 746
Location: Jolly Boyos Country


PostPosted: Mon Feb 17, 2020 4:57 pm    Post subject: Reply with quote

Thafrix wrote:
HPNer wrote:
It could be the crank position sensor. Mine was 'crushed' and the various symptoms, frustratingly irregular and difficult to repeat, assured an almost impossible diagnosis.
The good doctor (my superlative engineer) diagnosed and fixed.
The car has not missed a beat since . . .
Thumb


HPNer can I ask - was it manifesting symptoms when it got wet or did it misfire regardless of whether wet or not?

Many thanks


It was very odd. Yes, when it was wet it was a *****. But after around 40 mins driving, a strange misfire would occur at precisely 4350rpm as if it was hitting a rev limiter.
All fixed by replacing the crank position sensor.
Thumb
_________________
Today, I shall mostly be driving my 993 . . .
-------
You've bought the ticket, so take the ride . . .
Faster, faster, faster, until the thrill of speed overcomes the fear of death...
 
  
View user's profile Send private message
   
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