running rough? lean?, suggestions or answers? |
|
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. |
|
running rough? lean?, suggestions or answers? |
mipstien |
May 17 2010, 09:16 PM
Post
#1
|
Member Group: Members Posts: 261 Joined: 6-April 10 From: Maryville, TN Member No.: 11,576 Region Association: South East States |
ok so i get my haynes manual soon and i have been searching but don't have all the information in the same place and i also don't know all of the shorthands yet. AAR CHTS etc etc. which brings me to my question
tomorrow i will have a fuel pressure tester and need to know what all the different pressure's need to be at all the spots. basically if we give it extra fuel at the intake it idles fine and as soon as you stop and the fuel runs out from there it goes back to really rough again. we have a handful of other things to check also so any suggestions? one other thing that makes me think its running lean is when i rev the car and hold the peddle in one place it begins to drop revs unless we add our own fuel into the intake. once we add fuel the car runs very smooth. so any ideas and fuel pressure numbers and where to check it? thanks ryan PS- its a 75 2.0l |
mipstien |
May 19 2010, 05:28 AM
Post
#2
|
Member Group: Members Posts: 261 Joined: 6-April 10 From: Maryville, TN Member No.: 11,576 Region Association: South East States |
well after playing with her for a couple of days we pulled plugs on the passenger side and found that one was wet and one didn't seem to be getting fuel. so it seems i may have been firing only 2 cylinders. so we have gotten some new spark plugs, although not boshe plugs its a matter of testing and what we have access to at 12pm at night. after changing the plugs it did run a little bit less 'bouncy' or 'jerky' but it still didn't idle.
the head temperature sendor seems like it may not be running either because we have 0 resistance ( i think) from the plug/nipple when unhooked. the one injector that didn't seem to be shooting any fuel but was still clicking along. probably clogged. how do you go about cleaning one without sending it off for now. i'd prefer to check these injectors and get them doing at least something before i send them all off to find that the injectors aren't even the issue of my bad idle. where can i order a head temperature sendor? the wire on it is pretty rough too which will be replaced/repaired when we get the other unit. is there an good place to get a new wiring harness for one of these things or should we go about making a new one ourselves? |
Lo-Fi Version | Time is now: 26th September 2024 - 05:23 PM |
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 ... |