What's new
Porsche 911 UK Enthusiasts Online Community Discussion Forum GB

Welcome to the @Porsche911UK website. Register a free account today to become a member! Sign up is quick and easy, then you can view, participate in topics and posts across the site that covers all things Porsche.

Already registered and looking to recovery your account, select 'login in' and then the 'forget your password' option.

RPM Technik is one of the UK’s leading independent Porsche specialists. RPM specialise in all models of Porsche from classic through to current.

Starting from cold - What does yours do?

M

Mark Houghton

Trainee
Joined
2 Sep 2013
Messages
65
When I start her up from cold the revs go up and down. The engine doesn't cut out or anything but just wondered if this is normal. Once warm which seems to be a matter of minutes the car runs fine. Could the cold start valve be faulty?

Thanks Mark
 
My sc did the same and it was the csv.At the time I could only find one from a turbo which made it rev a little too much from a cold start but it did work ok.Easy DIY job too.
 
Mine revs up and down like a motorbike (well not that extreme, but as if someone is blipping the throttle gently) just for a minute, and stalls easily. after that it's fine.

I will have a poke at the CSV sometime, but I only ever think about it for the first minute.
 
Common on my 964 for a minute when it's cold. All other times OK. Not got any further to investigating as it doesn't really cause me an issue.
 
Its a much different set up on an SC compared to a Carrera and the 964 is different again.Although both have a type of csv it differs as the K-jetronic is essentially a mechanical injection whereas the later models are run by an ecu.
 
Mine does exactly that from cold (It is an SC - '79) just a mild fluctuation but noticeable - it warms up in about 30 seconds and is no bother after that. I'm pleased Im not alone...
 
Mine does exactly that from cold (It is an SC - '79) just a mild fluctuation but noticeable - it warms up in about 30 seconds and is no bother after that. I'm pleased Im not alone...
 
My 89 3.2 does it too, only for about 15-20 seconds. I've never thought about investigating why it does it as I've read about it before and it does seem to be quite common.
 
My 1985 3.2 wouldn't tick over when cold and a new Idle Stabiliser was fitted. Now it starts first time and doesn't cut out but it does hunt around from 1000 to 1800 revs or so, for 10 - 15 seconds. I'm pleased to hear this seems quite normal.
 
You must log in or register to reply here.

Similar threads

M
Warm start issue 993 c2
Replies
7
Views
229
Kat1
K
D
Stalling when warmed up and extended cranking time to restart
Replies
14
Views
1K
daviesjp
D
S
New Car - Silver 964 C2 Restoration started
4 5 6 7 8
Replies
119
Views
9K
stichill99
S
B
Start up noise
Replies
9
Views
1K
AVI_8
AVI_8
amm009uk
911 SC won't start
Replies
9
Views
753
amm009uk
amm009uk
C
Smoke from exhaust on cold start
Replies
13
Views
3K
CardinalZeus77
C
D
Help please with Tiptronic selector stiff to operate in all conditions
Replies
1
Views
246
911UK
911UK
Used Porsche for sale

Latest posts

New Threads

Porsche Model Range

Porsche 911

Porsche 992: 2018- Porsche 992: 2018- Porsche 991: 2011-2019 Porsche 991: 2011-2019 Porsche 997: 2004-2012 Porsche 997: 2004-2012 Porsche 996: 1997-2005 Porsche 996: 1997-2005 Porsche 993: 1993-1998 Porsche 993: 1993-1998 Porsche 964: 1989-1993 Porsche 964: 1989-1993 Porsche Carrera 3.2: 1983-1989 Porsche Carrera 3.2: 1983-1989 Porsche Carrera SC: 1977-1983 Porsche Carrera SC: 1977-1983 Porsche 930 Turbo: 1975-1989 Porsche 930 Turbo: 1975-1989 Porsche Early 911: 1964-1977 Porsche Early 911: 1964-1977

Porsche Hypercars

Porsche 918 Spyder Porsche 918 Spyder Porsche Carrera GT Porsche Carrera GT Porsche GT1 Porsche GT1 Porsche 959 Porsche 959

Other Current Porsche Model

Porsche Taycan : (2019-0%) Porsche Taycan : (2019-0%) Porsche Macan : 2013- Porsche Macan : 2013- Porsche Panamera : 2009- Porsche Panamera : 2009- Porsche Cayman: 2005- Porsche Cayman: 2005- Porsche Cayenne: 2003- Porsche Cayenne: 2003- Porsche Boxster: 1997- Porsche Boxster: 1997-

Porsche Legacy Models

Porsche 928 Porsche 928 Porsche 968 Porsche 968 Porsche 944 Porsche 944 Porsche 924 Porsche 924 Porsche 914 Porsche 914 Porsche 912 Porsche 912 Porsche 904 Porsche 904 Porsche 550 Porsche 550 Porsche 356 Speedster Porsche 356 Speedster Porsche 356 Porsche 356

Forum statistics

Threads
124,548
Messages
1,441,416
Members
48,962
Latest member
Geoffrey Fickle

porsche insurance porsche parts porsche sales porsche car sales porsche for sale
porsche classic sales porsche tuning porsche sold porsche specialist porsche engine rebuilds porsche driver training porsche car sales porsche exhausts

Community platform by XenForo® © 2010-2024 XenForo Ltd. XenForo theme by xenfocus

www.911uk.com @Porsche911UK THE DEFINITIVE PORSCHE FORUM Copyright © 911UK 2002-2024 All rights reserved.

911uk.com is not associated and is wholly independent of Porsche Automobil Holdings SE, Dr. Ing.h.c.F.Porsche AG, Porsche Cars GB, its subsidiaries and offical Porsche centres. Any word, phrase or graphic that in any way resembles anything to do with the Porsche name or organisation are registered trademarks of Porsche Automobil Holdings SE and Dr. Ing.h.c.F. Porsche AG.

Back
Top