Sporatic at 2400-2800rpms |
|
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. |
|
Sporatic at 2400-2800rpms |
HotWat |
Jul 29 2006, 09:30 PM
Post
#1
|
Newbie Group: Members Posts: 7 Joined: 16-March 05 From: Los Gatos, CA Member No.: 3,771 |
My '75 2.0 developed a hesitation/sputtering between 2400 - 2800 rpms which is driving me crazy. The car was serviced a few months ago (valves, etc). I have electronic ignition. Any ideas. Thanks.
|
Rand |
Jul 29 2006, 11:42 PM
Post
#2
|
Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
If it only sputters in that rpm range, and clears back up above, it makes me think of a worn TPS (throttle position sensor - the gadget mounted on the side of the throttle-body).
They contacts wear... especially in the most-used range. At any rate, learn more about it here: http://members.rennlist.com/pbanders/ |
Bleyseng |
Jul 30 2006, 08:29 AM
Post
#3
|
Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
To check the TPS just unplug it. Its the big 5 prong thingy on the Throtte body.
If it goes away when you unplug it and drive it then you know the tps is dirty or dead. (IMG:style_emoticons/default/agree.gif) If that doesn't fix it, check for a sticking advance plate in the dizzy. |
HotWat |
Jul 30 2006, 07:38 PM
Post
#4
|
Newbie Group: Members Posts: 7 Joined: 16-March 05 From: Los Gatos, CA Member No.: 3,771 |
To check the TPS just unplug it. Its the big 5 prong thingy on the Throtte body. If it goes away when you unplug it and drive it then you know the tps is dirty or dead. (IMG:style_emoticons/default/agree.gif) If that doesn't fix it, check for a sticking advance plate in the dizzy. Unplugged the TPS and made no difference. What the heck is the dizzy. |
Bleyseng |
Jul 30 2006, 09:24 PM
Post
#5
|
Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
dizzy= distributor
check the advance plate for smooth operation as rust/nolube will make it stick |
Dr. Roger |
Aug 6 2006, 03:17 PM
Post
#6
|
A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
so what was the problem?
has it been resolved? how? inquiring minds want to know. =-) |
rmital |
Aug 6 2006, 03:32 PM
Post
#7
|
Northeast optimist Group: Members Posts: 1,947 Joined: 12-December 05 From: Park Ridge, NJ Member No.: 5,268 |
|
Dr. Roger |
Aug 6 2006, 03:53 PM
Post
#8
|
A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
this guy does a good job of rebuilding a 010 distributor. great pics.
yours is not like this one but some of the details are the same. just a matter of do you want to pull your distributor for a rebuild or pull the contact plate to get at the advance weight assembly for cleaning and lubing. good luck. (IMG:style_emoticons/default/burnout.gif) |
rmital |
Aug 6 2006, 05:53 PM
Post
#9
|
Northeast optimist Group: Members Posts: 1,947 Joined: 12-December 05 From: Park Ridge, NJ Member No.: 5,268 |
|
Dr. Roger |
Aug 6 2006, 05:56 PM
Post
#10
|
A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
|
Lo-Fi Version | Time is now: 23rd May 2024 - 08:33 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |