The Saab Network Mailing List FAQ
| |
|
Main Index
[ Prev by Date ] [ Next by Date ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Rough running [saabnet.com]
Posted by Derek Shaffer - http://saabnet.com/tsn/forms/e.php (more from Derek Shaffer - http://saabnet.com/tsn/forms/e.php) on Mon, 18 Oct 2004 22:28:53
My '91 9000T runs very rough at low throttle, and I've been having immense
trouble figuring it out. I've replaced the O2 sensor, which snuffed out the
check engine light at the time, but it made no difference to the way it runs.
My now former mechanic tried replacing a fuel injector, also to no avail. DI
cassette and spark plugs have also been swapped out, with no improvement. One
interesting thing I've found: disconnecting the wires to either of the fuel
injectors on outside cylinders seems to make it run more smoothly, but
disconnecting the wires to either of the two inside cylinders makes it run
worse. I've tried removing the fuel rail and swapping an outside fuel
injector with an inside one, but end up with the same result as before. It is
also known that the catalytic converter is bad (it has a hole, if not
blockage). I smell gas at idle, which seems to be eminating from the
catalyst. Could this alone be causing the problem? I'm apprehensive about
having it replaced if it's not likely to be the only culprit; I'm thinking
it's more likely that the problem came first and took the catalytic converter
down with it. Another strange thing is that the turbo guage indicates less of
a vaccuum at idle than there used to be (needle hovers just to the left of
neutral). So, in which direction do I go next? Compression test? Pull the cam
cover and look for problems? Look for vaccuum leaks? Any and all advice is
much appreciated.
Thanks,
-Derek
'91 9000T 5sp 173K
'01 Viggen 5dr 48K
================
To send a response, just hit reply!
The Saab Network - On the Internet Since 1988
http://www.saabnet.com/
Import Parts Authority
Your Source for Import Parts Online
http://ipa.saabnet.com/
Posts in this Thread:
StateOfNine.com
 |
SaabClub.com
 |
Jak Stoll Performance
 |
M Car Covers
 |
Ad Available
 |
  
This is a moderated FAQ - Posting is a privilege, not a right.
Unsolicited commercial postings are not allowed (no Spam). Please, no For Sale or Wanted postings, SERIOUSLY.
Classifieds are to be listed in The Saab Network Classifieds pages.
This is a problem solving forum for over 250,000 Saab owners, so expect to see
problems discussed here even though our cars are generally very reliable. This is not an anything goes
type of forum. TSN has been a moderated forum since 1988. For usage guidelines, see the
TSN Mission and Purpose Page. Please remember that you are
not anonymous
Your address is: 18.221.129.145 - Using claudebot - Logged.
|
