Re: no signal to fuel pump >>> - Saab 9000 Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News -
7/1: Members: Log In to See Fewer Ads! |
5/28: SAAB Evolutions/TSN T-Shirts $14
[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 9000 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: no signal to fuel pump >>>
Posted by SuoTimo (more from SuoTimo) on Fri, 12 Sep 2003 00:32:18
In Reply to: Indie mechanic reports no signal to fuel pump - any, 94 9000 CSE, Thu, 11 Sep 2003 10:59:40
Members do not see ads below this line. - Help Keep This Site Online - Signup
Assuming that the no signal means that there is no power supplied to the fuel pump. Also assuming that all the fuses are ok and the pump has been tested by supplying power by-passing the relay.
The connection is done by a relay, the relay is driven by ECU. ECU does not start the fuel pump unless it gets signal that engine is turning. This signal comes from Cranck Position Sensor (CPS). CPS is know to fail sometimes, and Relay may have problems with loose welding.
Start checks with: CPS and Relay.
Most probably it is not the ECU...
Search the BB with CPS for more info. Also visit the townsend site (sponsor) for diagrams etc. instructions for troubleshooting,,,
posted by 192.100.124...
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!