![]() |
|
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. |
|
![]() |
drumsticks2112 |
![]()
Post
#1
|
Newbie ![]() Group: Members Posts: 7 Joined: 29-October 08 From: New London Member No.: 9,704 Region Association: Upper MidWest ![]() |
Car fires without a problem, but idles quite rough, and runs very rich, so much so that when the it settles down to normal idles, it floods out. MPS was replaced with a used but tested one recently. When it was last running ( a year ago) it ran a little rich, but nothing like this.
As of now, the CHT is not connected. When it is connected, the RPMs jump up to 4000 and stay there. When the CHT is bypassed with direct grounding of the harness, the results are the same as with the sensor being disconnected. I have no reason to suspect the injectors, FPR, Decel Valve, or the MPS. Any and all advice is welcome. -Todd |
![]() ![]() |
tod914 |
![]()
Post
#2
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 ![]() |
Did you actually test the MPS to see if it holds vaccume? 15lbs for 15mins I think. Do all the EFI parts numbers match up for that model year car? It's amazing what gets swapped out over the years.
http://members.rennlist.com/pbanders/DJetP...htm#Drivability this shows you all the part numbers and causes for fi issues. Good luck. |
drumsticks2112 |
![]()
Post
#3
|
Newbie ![]() Group: Members Posts: 7 Joined: 29-October 08 From: New London Member No.: 9,704 Region Association: Upper MidWest ![]() |
Did you actually test the MPS to see if it holds vaccume? 15lbs for 15mins I think. Do all the EFI parts numbers match up for that model year car? It's amazing what gets swapped out over the years. http://members.rennlist.com/pbanders/DJetP...htm#Drivability this shows you all the part numbers and causes for fi issues. Good luck. The EFI numbers are correct for all the parts. I personally have not tested the MPS, but before it was purchased it was tested and passed without a problem. I am in the process of checking my vaccum hoses for leaks, and for correct connections but I cannot seem to find a reliable schematic for the hose routing in the engine. All I have to work from is a shop repair manual, any suggestions where I might find another? Thanks for all the suggestions guys! (IMG:style_emoticons/default/beerchug.gif) -Todd |
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 17th June 2024 - 07:09 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 ... |