92 turbo runs rich; Looks like AMM after all! - Saab 900 Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News -
5/23: SOC Day Pass Winners Announceed
[General |
Members |
C900 |
9000 |
NG900 & OG93 |
93 |
95 |
NG95 |
99 |
Sonett |
Vintage Models |
Clubs |
Other Cars |
FAQs |
Gifts |
Member Photo Galleries |
Member Directory |
Classifieds |
Manuals |
*Buddy Registry |
*Mileage Registry |
Polls |
What's New |
Raffle |
Photo of the Month |
Sponsors]
[Main C900 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
92 turbo runs rich; Looks like AMM after all!
Posted by Ken H [Email] (more from Ken H) on Thu, 28 Sep 2006 12:43:07
Members do not see ads below this line. - Help Keep This Site Online - Signup
So I bought a few extra voltmeters so I could monitor different inputs to the ECU while driving. The mixture has typically been going rich under light acceleration when the car is restarted warm. Today after lunch it had a real meltdown: bucking, stalling, stinking, undriveable. It got to the point where if I even touched the gas pedal it would stumble and die, but seemed to idle fine.
During all this, inputs from the TPS and NTC were normal, and there was power going to the AMM. However, the AMM signal was going up to about 4 volts with just the slightest increase in rpms. I'm thinking this has to be a problem since when the car's running right it's more like 2.8 or 3 volts from the AMM under light acceleration. Looks like everyone who has said "AMM" over the past 2 months was right!
I replaced the damn AMM already when I first had some minor driveability problems in July and I got a trouble code "no signal from AMM", but I guess the rebuilt one from thesaabsite was probably even worse than my old one. I'm waiting to hear back whether they'll exchange it or not. Will let you know.
Thanks, Ken
posted by 128.210.6...
Posts in this Thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
StateOfNine.com
|
SaabClub.com
|
Jak Stoll Performance
|
M Car Covers
|
Ad Available
|
Random Saabnet.com Member Gallery Photos (Click Image)
This is a moderated bulletin board - 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. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the
Saabnet.com Mission and Purpose Page. Please remember that you are
not anonymous. Site Contact | Site Donations | Other Sites by SP -
Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot
Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all
the Site Membership Benefits!