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 )

> Starting Problems, Starting with Throttle but Won't Idle
nmkimosabe
post Jul 31 2026, 04:18 PM
Post #1


Member
**

Group: Members
Posts: 76
Joined: 16-March 25
From: Santa Fe, NM
Member No.: 28,660
Region Association: Rocky Mountains



My 1974 1.8 with fuel injection will only start by manually opening the throttle but I can't get it idle and thus run properly. I recently had the AFM rebuilt and replaced the points, plugs, condenser and replaced the CHT sensor but the problem continues as it did before. I've looked for vacuum leaks to no avail with starter fluid. I now seek the expertise of the members of this forum for additional suggestions.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
wonkipop
post Aug 26 2026, 03:47 PM
Post #2


914 Guru
*****

Group: Members
Posts: 5,704
Joined: 6-May 20
From: north antarctica
Member No.: 24,231
Region Association: NineFourteenerVille



as i recall @nmkimosabe - you sent me a PM telling me your mechanic had diagnosed low compression. this was a couple of months ago.
i did ask you in reply what those compression numbers were and which cylinders.

i assume said mechanic meant all cylinders but you never got back to me to know exactly what he meant.

beginning to think said mechanic mistook inherently low compression of 1.8 L jet (as designed for low octane unleaded back in the day) for some compression loss using figures he had for earlier D jet 914s pre unleaded.

i mean this guy is throwing darts at the board and hitting the ceiling?
i dunno.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
nmkimosabe   Starting Problems   Jul 31 2026, 04:18 PM
rfinegan   get a smoker from amazon, cheep and multi purpose....   Jul 31 2026, 04:23 PM
nmkimosabe   get a smoker from amazon, cheep and multi purpose...   Aug 1 2026, 11:51 AM
fiacra   I'm going to add a few more things I know abou...   Aug 1 2026, 01:32 PM
fiacra   :popcorn:   Aug 6 2026, 10:29 AM
rfinegan   It is running now with new ignition parts and base...   Aug 6 2026, 11:10 AM
nmkimosabe   It is running now with new ignition parts and bas...   Aug 10 2026, 12:03 PM
TRP   Congratulations on getting it to start and idle. T...   Aug 10 2026, 03:30 PM
nmkimosabe   Congratulations on getting it to start and idle. ...   Aug 10 2026, 09:20 PM
TRP   Congratulations on getting it to start and idle....   Aug 10 2026, 11:36 PM
wonkipop   Congratulations on getting it to start and idle....   Aug 11 2026, 05:07 AM
nmkimosabe   [quote name='nmkimosabe' post='3268296' date='Aug...   Aug 11 2026, 08:54 AM
wonkipop   [quote name='nmkimosabe' post='3268296' date='Au...   Aug 11 2026, 06:01 PM
nmkimosabe   [quote name='nmkimosabe' post='3268355' date='Aug...   Aug 24 2026, 02:23 PM
Artfrombama   I too have a 74 1.8 with FI I was having a similar...   Aug 24 2026, 02:51 PM
wonkipop   Congratulations on getting it to start and idle. ...   Aug 11 2026, 05:25 AM
nmkimosabe   Thanks for the advice and I will double check that...   Aug 26 2026, 09:32 AM
Superhawk996   Find a new mechanic that actually understands thes...   Aug 26 2026, 12:56 PM
wonkipop   Find a new mechanic that actually understands the...   Aug 26 2026, 03:19 PM
wonkipop   as i recall @nmkimosabe - you sent me a PM telli...   Aug 26 2026, 03:47 PM
nmkimosabe   I will try to clarify the status and progress to d...   Aug 27 2026, 06:13 PM
Superhawk996   Given you had a worn distributor is there a reason...   Aug 27 2026, 07:08 PM
nmkimosabe   Given you had a worn distributor is there a reaso...   Aug 28 2026, 04:26 PM
wonkipop   Given you had a worn distributor is there a reas...   Aug 29 2026, 05:06 AM
nmkimosabe   [quote name='nmkimosabe' post='3269962' date='Aug...   Aug 29 2026, 12:02 PM
wonkipop   [quote name='wonkipop' post='3270009...   Aug 29 2026, 02:07 PM
fiacra   I can't believe this saga took yet another tur...   Aug 27 2026, 09:01 PM
nmkimosabe   I can't believe this saga took yet another tu...   Aug 28 2026, 04:27 PM
fiacra   It's funny how things always seem to circle ba...   Aug 29 2026, 07:54 AM
nmkimosabe   It's funny how things always seem to circle b...   Aug 29 2026, 12:06 PM
nmkimosabe   It was suggested to me today by a person with seve...   Sep 5 2026, 05:34 PM
wonkipop   It was suggested to me today by a person with sev...   Sep 6 2026, 07:49 PM
nmkimosabe   [quote name='nmkimosabe' post='3270852' date='Sep...   Sep 7 2026, 03:37 PM
wonkipop   [quote name='nmkimosabe' post='3270852' date='Se...   Sep 7 2026, 05:09 PM
nmkimosabe   [quote name='nmkimosabe' post='3271003' date='Sep...   Sep 8 2026, 12:35 PM
Superhawk996   Not likely. Can be measured if you really wanted...   Sep 5 2026, 08:41 PM
nmkimosabe   Not likely. Can be measured if you really wante...   Sep 6 2026, 05:19 PM
wonkipop   @nmkimosabe situation re servicing /parts etc fo...   Sep 8 2026, 01:00 PM
nmkimosabe   @[url=http://www.914world.com/bbs2/index.php?show...   Sep 9 2026, 11:03 AM
wonkipop   @nmkimosabe re 87 alfa romeo spider. thats a co...   Sep 9 2026, 01:12 PM
nmkimosabe   @[url=http://www.914world.com/bbs2/index.php?show...   Sep 9 2026, 04:16 PM
wonkipop   @nmkimosabe some other tips for you re your 1.8 ...   Sep 9 2026, 01:28 PM
nmkimosabe   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Sep 15 2026, 04:37 PM
Superhawk996   Here is the curve for CHT sensor - you will have a...   Sep 15 2026, 07:28 PM


Reply to this topicStart new topic
6 User(s) are reading this topic (6 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 15th September 2026 - 08:51 PM
...