Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> Suddeny it wont run, This car is getting the better of me
DavidSweden
post Jun 13 2015, 06:59 AM
Post #1


Member
**

Group: Members
Posts: 481
Joined: 8-June 14
From: Sweden
Member No.: 17,452
Region Association: Scandinavia



Went out for a short drive this morning. When I got back I parked up the car and shut of the engine. A few minutes later when I should start her up I had difficulty getting her going, the engine started but misfired badly. It then cut out and refuses to start. I have a Petronix but there is a spark. Any ideas on where to start?
Thanks
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
SirAndy
post Jun 13 2015, 12:03 PM
Post #2


Resident German
*************************

Group: Admin
Posts: 42,207
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California



Stock D-Jet? If so, check the CHT, the wire may have come lose ...
(IMG:style_emoticons/default/idea.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bartlett 914
post Jun 13 2015, 02:11 PM
Post #3


Advanced Member
****

Group: Members
Posts: 2,218
Joined: 30-August 05
From: South Elgin IL
Member No.: 4,707
Region Association: Upper MidWest



QUOTE(SirAndy @ Jun 13 2015, 01:03 PM) *

Stock D-Jet? If so, check the CHT, the wire may have come lose ...
(IMG:style_emoticons/default/idea.gif)

I thought the cht circuit open would make the car run rich. If it is running rich then I wouldn't think spraying additional fuel would help.

I put a pressure gauge in place of the cold start injector. In my car, I never need it anyway so the gauge stays in place
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BeatNavy
post Jun 13 2015, 02:57 PM
Post #4


Certified Professional Scapegoat
****

Group: Members
Posts: 2,951
Joined: 26-February 14
From: Easton, MD
Member No.: 17,042
Region Association: MidAtlantic Region



QUOTE(Bartlett 914 @ Jun 13 2015, 04:11 PM) *

QUOTE(SirAndy @ Jun 13 2015, 01:03 PM) *

Stock D-Jet? If so, check the CHT, the wire may have come lose ...
(IMG:style_emoticons/default/idea.gif)

I thought the cht circuit open would make the car run rich. If it is running rich then I wouldn't think spraying additional fuel would help.

It will make it run rich. The experience I've had with a open/failed, or open/failing, CHT circuit is the car will start or at least try to start when cold but quickly die and then refuse to start at all.

Yes, I think at one time or another we've all needed a ton of patience with our Teener. Good luck, David. You'll figger' it out (IMG:style_emoticons/default/biggrin.gif)

User is online!Profile CardPM
Go to the top of the page
+Quote Post
DavidSweden
post Jun 14 2015, 11:57 AM
Post #5


Member
**

Group: Members
Posts: 481
Joined: 8-June 14
From: Sweden
Member No.: 17,452
Region Association: Scandinavia



QUOTE(BeatNavy @ Jun 13 2015, 12:57 PM) *

QUOTE(Bartlett 914 @ Jun 13 2015, 04:11 PM) *

QUOTE(SirAndy @ Jun 13 2015, 01:03 PM) *

Stock D-Jet? If so, check the CHT, the wire may have come lose ...
(IMG:style_emoticons/default/idea.gif)

I thought the cht circuit open would make the car run rich. If it is running rich then I wouldn't think spraying additional fuel would help.

It will make it run rich. The experience I've had with a open/failed, or open/failing, CHT circuit is the car will start or at least try to start when cold but quickly die and then refuse to start at all.

Yes, I think at one time or another we've all needed a ton of patience with our Teener. Good luck, David. You'll figger' it out (IMG:style_emoticons/default/biggrin.gif)


Stock D Jet 2.0 l CG Engine

Thanks for the advice guys. Well this is a bummer the sun has arrived in Sweden and the car refuses to start

This is what I have tested;
Fuel pressure 28 psi
Gas filter is clean
3k ohms on CHT the one by #3
Changed Peronix back to points and there is a spark
Static timed engine
Turned on ignition and opened throttle by hand in engine bay and can hear the injectors firing

Still nothing (IMG:style_emoticons/default/blink.gif)

When I crank it and put down full gas it sounds like it wants to start
I pulled the plugs they had a thin coat of carbon on them and were slightly wet.

Any ideas on what to check next? I got to get this car running
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
DavidSweden   Suddeny it wont run   Jun 13 2015, 06:59 AM
catsltd   I would pull a plug and make sure its dry and clea...   Jun 13 2015, 07:28 AM
Spoke   Spraying starting fluid in the throttle will let y...   Jun 13 2015, 07:58 AM
Elliot Cannon   Fuel pump running? Out of gas? :D   Jun 13 2015, 10:35 AM
DavidSweden   Fuel pump running? Out of gas? :D I squirted...   Jun 13 2015, 11:18 AM
larss   ...Whats the best way to check the fuel pressure....   Jun 15 2015, 12:32 PM
DavidSweden   ...Whats the best way to check the fuel pressure...   Jun 15 2015, 12:38 PM
larss   [quote name='larss' post='2199034' date='Jun 15 2...   Jun 15 2015, 12:46 PM
DavidSweden   Lars the pump is running I have just over 28 psi   Jun 15 2015, 12:50 PM
larss   Lars the pump is running I have just over 28 psi ...   Jun 15 2015, 12:52 PM
SirAndy   Stock D-Jet? If so, check the CHT, the wire may ha...   Jun 13 2015, 12:03 PM
Bartlett 914   Stock D-Jet? If so, check the CHT, the wire may h...   Jun 13 2015, 02:11 PM
BeatNavy   Stock D-Jet? If so, check the CHT, the wire may ...   Jun 13 2015, 02:57 PM
DavidSweden   [quote name='Bartlett 914' post='2198374' date='J...   Jun 14 2015, 11:57 AM
SirAndy   Stock D-Jet? If so, check the CHT, the wire may h...   Jun 14 2015, 12:16 PM
914_teener   Stock D-Jet? If so, check the CHT, the wire may ...   Jun 15 2015, 11:14 AM
stugray   [quote name='Bartlett 914' post='2198374' date='J...   Jun 15 2015, 11:51 AM
DavidSweden   :bump: Anyone out there who can help? Pretty ple...   Jun 15 2015, 10:21 AM
BeatNavy   Can you describe how you measured the CHT resistan...   Jun 15 2015, 10:39 AM
Philip W.   the last time mine did something like this it ende...   Jun 15 2015, 10:49 AM
Jeff Bowlsby   Does the MPS hold vacuum?   Jun 15 2015, 11:53 AM
DavidSweden   Does the MPS hold vacuum? I hope so Jeff it wa...   Jun 15 2015, 11:58 AM
914_teener   Does the MPS hold vacuum? I hope so Jeff it w...   Jun 15 2015, 12:43 PM
Spoke   You can check for a stuck cold start injector. Tha...   Jun 15 2015, 12:11 PM
DavidSweden   You can check for a stuck cold start injector. Th...   Jun 15 2015, 12:15 PM
Philip W.   You can check for a stuck cold start injector. T...   Jun 15 2015, 12:33 PM
cpavlenko   What's cht, just wondering. Trying to keep up ...   Jun 15 2015, 12:45 PM
larss   You wrote in the 1st post that it was misfiring, i...   Jun 15 2015, 12:51 PM
larss   For how long have you been driving the car without...   Jun 15 2015, 12:53 PM


Reply to this topicStart new topic
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 9th May 2025 - 07:09 PM