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Author Topic: How hard is it to change an ecu?  (Read 3959 times)

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neil.gale

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How hard is it to change an ecu?
« on: 15 November 2009, 20:19:04 »
my car has been giving me greif (instrument panel failure) and i wondered if i changed the ecu it might solve the problem.
any help much appreciated  :y
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I_want_an_Omega

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Re: How hard is it to change an ecu?
« Reply #1 on: 15 November 2009, 20:46:35 »
Changing an ECU is mechanically very simple, but the simplicity ends there as its coded to the immobiliser, which is also coded to the chips in the keys.

You really need to advise what age your car is as things change by the year.

Why do you think the ECU is faulty? In thinking about it I'm not aware of any link from the ECU to the instrument panel. The main signal for speed comes from the ABS ECU, so the engine ECU will probably only drive the rev counter and nothing else.

Did you make a note of the reference numbers on the back of the instrument panel? If you have that then its possible that someone may have a spare one.

The number will be something like:

88 481 706

REgards
« Last Edit: 15 November 2009, 20:49:56 by I_want_an_Omega »
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neil.gale

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Re: How hard is it to change an ecu?
« Reply #2 on: 15 November 2009, 21:21:59 »
ive lost temp,speedo,rev counter and fuel gauge and warning lights and cooling fan along with elec window and sunroof all in one hit any ideas?
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Ziad

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Re: How hard is it to change an ecu?
« Reply #3 on: 15 November 2009, 22:08:50 »
Just a thought, but have you checked the fuses in the fusebox below the steering?
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neil.gale

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Re: How hard is it to change an ecu?
« Reply #4 on: 15 November 2009, 22:33:09 »
yep several times and the large ones under the bonnet
im confused
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Ziad

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Re: How hard is it to change an ecu?
« Reply #5 on: 15 November 2009, 22:37:22 »
I seem to remember someone having about the same symptoms as yours ... Pete Elite it was maybe ... let me try to find the post and maybe there could be a solution to your problem  :y

Does the engine start fine?
« Last Edit: 15 November 2009, 22:37:53 by ziad »
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Ziad

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Re: How hard is it to change an ecu?
« Reply #6 on: 15 November 2009, 22:40:59 »
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Pete Elite

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Re: How hard is it to change an ecu?
« Reply #7 on: 15 November 2009, 23:14:21 »
Quote
I seem to remember someone having about the same symptoms as yours ... Pete Elite it was maybe ... let me try to find the post and maybe there could be a solution to your problem  :y
 

Does the engine start fine?


   
 Yes as Ziad says i had the same problem but could only find one 15amp fuse blown in the box under the column but after changing it there was no difference :-?.
 I had had enough for one day so left it until the next, but when i went out and switched on the ignition all was well again, "very strange" ::).

  If yours is still the same try removing a battery connection for 1/2 an hour and refit it and see if it resets :-/.
 
       HTH,
             Pete :).
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