Diagnosing an intermittent D-Jet problem..., Hesitation under load at 2800 RPM but only when cold... |
|
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. |
|
Diagnosing an intermittent D-Jet problem..., Hesitation under load at 2800 RPM but only when cold... |
MikeInMunich |
Oct 10 2016, 02:46 AM
Post
#1
|
Member Group: Members Posts: 392 Joined: 19-November 13 From: Munich, Germany Member No.: 16,674 Region Association: None |
Hi again from Munich!
Here are the details. But please see update from Feb. 5th below! I have a D-Jetronic intake. Under load and at about 2800 RPM Im experiencing an intermittent hesitation. Yesterday my son and I took the car out for a drive from Munich, towards Innsbruck and back and we ran into a bit of rain coming along the Aachensee (lake), and this hesitation got worse. Then I remembered the only other time I've had this car out with 100% humidity and that it wasn't running well on that day either, so this is apparently a clue. So what can this be? And why does it happen at all, even when it's not raining, albeit not as noticeably? Is there a cure? Experts / senior gurus out there, thank you for your time and sharing your knowledge and experience, in advance! With kind regards, Mike in Munich (IMG:style_emoticons/default/smilie_flagge6.gif) |
914_teener |
Oct 10 2016, 11:52 AM
Post
#2
|
914 Guru Group: Members Posts: 5,200 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Mike.....
Here would be my thoughts and in this order. Check fuel pressure. Fuel additive to take out water from fuel. Fuel filter or kinked fuel line Condensation in the distributor....spray a little WD40....the wonder spray inside..clean the dizzy plate. Bad CHT connection....check wire for nicks and or body for oxidation check values warm....ohms. Dirty or worn TPS. |
MikeInMunich |
Oct 10 2016, 01:07 PM
Post
#3
|
Member Group: Members Posts: 392 Joined: 19-November 13 From: Munich, Germany Member No.: 16,674 Region Association: None |
Mike..... Here would be my thoughts and in this order. Check fuel pressure. Fuel additive to take out water from fuel. Fuel filter or kinked fuel line Condensation in the distributor....spray a little WD40....the wonder spray inside..clean the dizzy plate. Bad CHT connection....check wire for nicks and or body for oxidation check values warm....ohms. Dirty or worn TPS. Thanks! FP = 29 psi Will look into CHTS and see if an additive for H2O in fuel may help. Fuel lines and filter are new, but will have a look there as well. Seems like the TPS parts are NLA... Any info on this? M.i.M. |
Lo-Fi Version | Time is now: 27th May 2024 - 11:32 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 ... |