Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Search the maintenance guides for answers to 99.999% of Omega questions

Pages: 1 [2] 3 4  All   Go Down

Author Topic: Its not my Crank sensor either!!  (Read 4537 times)

0 Members and 1 Guest are viewing this topic.

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 106852
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #15 on: 21 October 2006, 21:05:53 »

Quote
did see a bit about reseting immobiliser  :-?
Only if changing engine ecu I believe...
Logged
Grumpy old man

Taxi_Driver

  • Guest
Re: Its not my Crank sensor either!!
« Reply #16 on: 21 October 2006, 21:33:55 »

Quote
Quote
did see a bit about reseting immobiliser  :-?
Only if changing engine ecu I believe...

Ahhh that'll be the reason then
Logged

Taxi_Driver

  • Guest
Re: Its not my Crank sensor either!!
« Reply #17 on: 21 October 2006, 21:55:10 »

Dunno if this helps......but now the crank sensor has been changed.....

Its messing about now even when its cold  :(

Just been out in it......cold engine....struggled to start (5secs) and in limp mode.....restarted and ok.....tho EML stays on ( as P0700 wont reset)

Drove 5 mins to takeaway.....and was away from car for 5 mins.....got back in and struggled to start again and in limp mode again.....restart and again ok.

I cannot get my head round this now......if it was consistant....ie every start it struggled and went into limp mode it would make fault finding easier  ::)
Logged

rpont

  • Intermediate Member
  • ***
  • Offline Offline
  • Gender: Male
  • Tadcaster
  • Posts: 270
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #18 on: 21 October 2006, 22:32:28 »

Sounds to me as if you really need a day off in Northampton, that is if a Tech 2 can read and display real time data.
Logged

Auto Addict

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • North Birmingham
  • Posts: 13554
  • Back to Vx to keep TB happy
    • Astra K Elite ST
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #19 on: 21 October 2006, 22:46:02 »

I reckon the crank sensor is now out of synchronisation with the cam sensor.

Is there anyway of testing this with a TechII?
Logged
I like red cars

Taxi_Driver

  • Guest
Re: Its not my Crank sensor either!!
« Reply #20 on: 22 October 2006, 06:57:29 »

Quote
I reckon the crank sensor is now out of synchronisation with the cam sensor.

Is there anyway of testing this with a TechII?

Dont see how it can be AA.....the sensor is the bit that stays still....so its only changing a fixed part.

Im wondering if theres summat else thats been disturbed, causing the fault.
Anyone know if theres any other sensors close the the crank sensor.....maybe a gearbox sensor  :-/
Logged

Auto Addict

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • North Birmingham
  • Posts: 13554
  • Back to Vx to keep TB happy
    • Astra K Elite ST
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #21 on: 22 October 2006, 07:22:58 »

Quote
Quote
I reckon the crank sensor is now out of synchronisation with the cam sensor.

Is there anyway of testing this with a TechII?

Dont see how it can be AA.....the sensor is the bit that stays still....so its only changing a fixed part.

Im wondering if theres summat else thats been disturbed, causing the fault.
Anyone know if theres any other sensors close the the crank sensor.....maybe a gearbox sensor  :-/

Just clutching at straws, TD. :(
Logged
I like red cars

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 106852
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #22 on: 22 October 2006, 11:13:02 »

Quote
Sounds to me as if you really need a day off in Northampton, that is if a Tech 2 can read and display real time data.
Real one can, cheapo with current software cannot.
Logged
Grumpy old man

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 106852
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #23 on: 22 October 2006, 11:14:08 »

Quote
I reckon the crank sensor is now out of synchronisation with the cam sensor.

Is there anyway of testing this with a TechII?
Only way that can happen is if the crank shaft has moved in relation to camshaft. ie the cambelt has slipped. And it wouldn't bring up a fault code...
Logged
Grumpy old man

Taxi_Driver

  • Guest
Re: Its not my Crank sensor either!!
« Reply #24 on: 22 October 2006, 15:45:59 »

Next step I see......is take it back to my local garage....they have a generic code reader and see if that will read the g/b ecu.

If that carnt then I think a trip to Jaimes will be in order.

I was having a poke about to see if I could see anything else and noticed 2 brown wires (covered in plastic tubing, that has split, hence why i know its got two brown wires in it) that comes out of the main loom by the ecu and then runs down beside the dipstick and disapears behind the o/s engine mount. I gently tugged on these wires, just to check they were plugged into summat, and they are. But just wondered what they were for??

Logged

Gascon

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • York
  • Posts: 15
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #25 on: 22 October 2006, 21:28:22 »

Hi
I have been having same problem as you, I have the cam sensor and crank sensor replaced and it made no difference.
A couple of days back I had a look at the fuse box checking fuse no 9 and fuse no 26 (Automatic transmission fuses). When I went to pull them out, well, they didnt need much pulling, they were so slack I was suprised they were still in place and had not falling out. With a thin blade tried to push the fuse holder connectors together, replaced both fuses(old ones were ok) but now the new ones feel tighter in the fuse holder.
I have not seen the EML for three days, starts first turn of the key.
The question is , is all this a a bit of wishfull thinking of my part or am I on to something here.
I wont touch anything else for a few days and see what happens
Logged

Auto Addict

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • North Birmingham
  • Posts: 13554
  • Back to Vx to keep TB happy
    • Astra K Elite ST
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #26 on: 22 October 2006, 21:37:20 »

Quote
Hi
I have been having same problem as you, I have the cam sensor and crank sensor replaced and it made no difference.
A couple of days back I had a look at the fuse box checking fuse no 9 and fuse no 26 (Automatic transmission fuses). When I went to pull them out, well, they didnt need much pulling, they were so slack I was suprised they were still in place and had not falling out. With a thin blade tried to push the fuse holder connectors together, replaced both fuses(old ones were ok) but now the new ones feel tighter in the fuse holder.
I have not seen the EML for three days, starts first turn of the key.
The question is , is all this a a bit of wishfull thinking of my part or am I on to something here.
I wont touch anything else for a few days and see what happens

Worth a try TD.
Logged
I like red cars

Taxi_Driver

  • Guest
Re: Its not my Crank sensor either!!
« Reply #27 on: 23 October 2006, 07:57:02 »

Quote
Quote
Hi
I have been having same problem as you, I have the cam sensor and crank sensor replaced and it made no difference.
A couple of days back I had a look at the fuse box checking fuse no 9 and fuse no 26 (Automatic transmission fuses). When I went to pull them out, well, they didnt need much pulling, they were so slack I was suprised they were still in place and had not falling out. With a thin blade tried to push the fuse holder connectors together, replaced both fuses(old ones were ok) but now the new ones feel tighter in the fuse holder.
I have not seen the EML for three days, starts first turn of the key.
The question is , is all this a a bit of wishfull thinking of my part or am I on to something here.
I wont touch anything else for a few days and see what happens

Worth a try TD.

Certainly is, I will have a look this morning  :y

Logged

Marks DTM Calib

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 33984
  • Git!
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #28 on: 23 October 2006, 08:06:51 »

The terrible thing here is that a competent mechanic with tech 2 should be able to monitor the live data from the engine and gearbox ecu and see the fault occur, this should have been done by the dealer some time ago. I actually think that the man to see would be Jim Grayson as he is very hot on the systems diagnosis.

Looking at the scms, the gearbox ecu communicates via a CAN bus connection with the engine ecu and I still suspect its the gearbox ecu putting the engine into limp mode, this could be proven by actually re-configuring the engine ECU to tell it there is a manual box fitted......one other possibility is the ABS ecu as this uses the same CAN bus connection, this could for some reason be backing the power off and forcing limp mode but , is less likely.
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 106852
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Its not my Crank sensor either!!
« Reply #29 on: 23 October 2006, 09:17:16 »

Quote
The terrible thing here is that a competent mechanic with tech 2 should be able to monitor the live data from the engine and gearbox ecu and see the fault occur, this should have been done by the dealer some time ago. I actually think that the man to see would be Jim Grayson as he is very hot on the systems diagnosis.

Looking at the scms, the gearbox ecu communicates via a CAN bus connection with the engine ecu and I still suspect its the gearbox ecu putting the engine into limp mode, this could be proven by actually re-configuring the engine ECU to tell it there is a manual box fitted......one other possibility is the ABS ecu as this uses the same CAN bus connection, this could for some reason be backing the power off and forcing limp mode but , is less likely.
If setting engine ecu to manual g/box config, does that mean ignition wont retard on gear changes, making it surge a bit, and also strain autobox?
Logged
Grumpy old man
Pages: 1 [2] 3 4  All   Go Up
 

Page created in 0.041 seconds with 20 queries.