Author |
Topic: bad MPG, Idle etc,2.9 ultima 12v 95 saloon (Read 856 times) |
|
haitch
Newbie
I'm a YaBB newbie! & OAP
Posts: 15
|
 |
bad MPG, Idle etc,2.9 ultima 12v 95 saloon
« on: Jul 10th, 2008, 11:08am » |
 Quote  Modify
|
Found someone to do the scan and guess what.No power at the EEC 1V ECU.
Nearly ready to give it up. 
|
|
 IP Logged |
|
|
|
harry.m1byt
Full Member
What's YaBB?
Posts: 792
|
|
Re: bad MPG, Idle etc,2.9 ultima 12v 95 saloon
« Reply #1 on: Jul 12th, 2008, 10:35pm » |
Quote Modify
|
The 12v uses a Star tester for diagnostics.
|
|
IP Logged |
August '95 2.9 12v auto Ultima -
Now flashing 
|
|
|
gozz
Senior Member
Been around awhile
Posts: 3475
|
|
Re: bad MPG, Idle etc,2.9 ultima 12v 95 saloon
« Reply #2 on: Jul 12th, 2008, 10:59pm » |
Quote Modify
|
haitch.
I run several 12v hearses and limousines in the funeral trade,bad fuel economy and idling is nearly always due to either the manifold actual pressure sensor,or vacuum thereto,or one or both exhaust oxygen sensors.Another common problem,although with different symptoms,eg cutting out at road junctions and intermittent idling speed is down to a failing throttle potentiometer.If you are unable to get a scan,which in fact is a simpler operation than EEC V,but seems to bamboozle technicians,substitution of these parts for known good units does'nt take too much time.
Good luck GOZZ.
|
|
IP Logged |
|
|
|
scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
|
|
Re: bad MPG, Idle etc,2.9 ultima 12v 95 saloon
« Reply #3 on: Jul 13th, 2008, 8:38am » |
Quote Modify
|
on Jul 12th, 2008, 10:59pm, gozz wrote:haitch.
I run several 12v hearses and limousines in the funeral trade,bad fuel economy and idling is nearly always due to either the manifold actual pressure sensor,or vacuum thereto,or one or both exhaust oxygen sensors.Another common problem,although with different symptoms,eg cutting out at road junctions and intermittent idling speed is down to a failing throttle potentiometer.If you are unable to get a scan,which in fact is a simpler operation than EEC V,but seems to bamboozle technicians,substitution of these parts for known good units does'nt take too much time.
Good luck GOZZ. |
|
the 12v is generally bullet-proof.
if there was no power at the ecu, it wouldn't start, afaik. 
work your way though replacing the list of parts one at a time and you'll find the culprit.
hth
|
|
IP Logged |
|
|
|
haitch
Newbie
I'm a YaBB newbie! & OAP
Posts: 15
|
|
Re: bad MPG, Idle etc,2.9 ultima 12v 95 saloon
« Reply #4 on: Jul 15th, 2008, 4:35pm » |
Quote Modify
|
Thanks Goz & Scorpio Man.Its in the shop now they are having trouble getting a MAP as they think thats the problem.They still cant get any power at the EEC socket in the coin pocket so no Scan.
|
|
IP Logged |
|
|
|
|
Home
Help
Search
Members
Login
Reply
Send Topic
Print