Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Please play nicely.  No one wants to listen/read a keyboard warriors rants....

Pages: [1]   Go Down

Author Topic: Cold start issues.  (Read 889 times)

0 Members and 2 Guests are viewing this topic.

Peter H

  • Junior Member
  • **
  • Offline Offline
  • Gender: Male
  • Somerset
  • Posts: 82
    • View Profile
Cold start issues.
« on: 03 January 2009, 22:41:24 »
Hello,

My 2.5 '99 pre facelift Elite has been having trouble with the very cold weather.  Normally cold starts are fine, but when the ambient temp is below 0 C it takes 3 or 4 goes to get her going.  The battery is strong and once running is is smooth and sweet.

My experience of cars is mainly '80's stuff, BMW's and Jags, so I would normally suspect a Therotime switch or the 7th injector.  I know that later BMW's used a longer duration during cold cycle and only had 6 injectors, is this the case with an X25XE?  Also is there a sensor that only cuts in for extreme cold starting?

Thanks for your help, BTW the car is garaged, so I am sure it is a cold not a frost issue.
Logged
Bread and water can so easily be tea and toast!

philhoward

  • Senior Member
  • ****
  • Offline Offline
  • Staffs
  • Posts: 939
  • Love the engines, so put one in something else..
    • View Profile
Re: Cold start issues.
« Reply #1 on: 03 January 2009, 23:01:54 »
It's the extended pulse system that the X25XE uses; 7th injectors etc went out with the loss of the old L-Jetronics..

There are several reasons why the really cold temperature could cause start issues, and also even more that are just a coincidence.

There's only one ECU temperature sensor, which should still work fine at temperatures much lower than we get here.

Does (for some strange reason) the Engine ECU light flash after a failed start?  Will it fire if you keep the starter going for longer?
Logged
Running an X30XE in a Reliant Scimitar GTE as I can't have an Omega as a company car...

Peter H

  • Junior Member
  • **
  • Offline Offline
  • Gender: Male
  • Somerset
  • Posts: 82
    • View Profile
Re: Cold start issues.
« Reply #2 on: 05 January 2009, 20:35:14 »
Quote
It's the extended pulse system that the X25XE uses; 7th injectors etc went out with the loss of the old L-Jetronics..

There are several reasons why the really cold temperature could cause start issues, and also even more that are just a coincidence.

There's only one ECU temperature sensor, which should still work fine at temperatures much lower than we get here.

Does (for some strange reason) the Engine ECU light flash after a failed start?  Will it fire if you keep the starter going for longer?

It will fire if I keep cranking.  There are no extraneous dash lights involved.
Logged
Bread and water can so easily be tea and toast!

Marks DTM Calib

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 33983
  • Git!
    • View Profile
Re: Cold start issues.
« Reply #3 on: 05 January 2009, 20:36:47 »
Read the fault codes anyway.....and report back.....possible code 19!

Thank god the cold start injectors are done away with!
Logged

Peter H

  • Junior Member
  • **
  • Offline Offline
  • Gender: Male
  • Somerset
  • Posts: 82
    • View Profile
Re: Cold start issues.
« Reply #4 on: 05 January 2009, 22:43:08 »
Quote
Read the fault codes anyway.....and report back.....possible code 19!

Thank god the cold start injectors are done away with!

LOL the worst thing about 7th injectors is where manufacurers used to put them.  BMW M30 engines spring to mind!

I'll check the codes and report back, thanks!
Logged
Bread and water can so easily be tea and toast!
Pages: [1]   Go Up
« previous next »
 

Page created in 0.019 seconds with 17 queries.