Saxo ECU
Moderator: RichardW
Saxo ECU
Hi my ecu is dead on my 2001 1.1 saxo (its the 3 plug type) i tried to replace it with a new (second hand) along with the black box and key but the immobiliser just kicked in. Just wondering if there is a correct way to fit it before i try another new one?
Thanks for the help.
Luke
Thanks for the help.
Luke
Just to add to this, im getting a coil pack today to try so will let you know, also as i have changed the ECU i use a new key to start the car, am i safe to have the old key near the ignition barrel?luke6040 wrote:The recovery guy and a mechanic said it was the ecu, but clearly not. ther is spark on all four and fuel to all four but I'd swear it's not running on all four. Could it not be sparking under compression? I'm in Wolverhampton.
- spider
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You need the key body of the correct key nearest the aerial around the ignition switch.
You could take the blade out of the new assembly and just hold the "correct" body near the aerial and turn the new key with pliers etc if needed.
Keep the "wrong" body away from the aerial, you do not want to confuse it.
As far as I am aware, as long as they transponder in the key body matches the code in the ECU (hence it important to get the key with a used ECU) its good to go.
Can be programmed in most cases to accept new key codes, although need Diag / Lexia to do this.
You could take the blade out of the new assembly and just hold the "correct" body near the aerial and turn the new key with pliers etc if needed.
Keep the "wrong" body away from the aerial, you do not want to confuse it.
As far as I am aware, as long as they transponder in the key body matches the code in the ECU (hence it important to get the key with a used ECU) its good to go.
Can be programmed in most cases to accept new key codes, although need Diag / Lexia to do this.
Andy.
91 205D-Turbo, gone but still missed
02 106D, TUD5B, gone but not really missed apart from the MPG
91 205D-Turbo, gone but still missed
02 106D, TUD5B, gone but not really missed apart from the MPG
How are you checking the spark & fuel ? Are you getting an injector pulse at all 4 injectors ?
You can't do this with lexia, all citroen ECU's (with transponder) & imobiliser 'black boxes' are programable only once, the code cant be changed.spider wrote: Can be programmed in most cases to accept new key codes, although need Diag / Lexia to do this.
- spider
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Well, I learned something new. The pug 106's can be re-coded as if you order a new key (inc the body) you simply recode it via the Diag... You do need all the keys though to do it as it will forget any you do not program. , I did one a few years ago and that was a 99 / T / V plate or so. Must be different with the Citroens then.wheeler wrote: You can't do this with lexia, all citroen ECU's (with transponder) & imobiliser 'black boxes' are programable only once, the code cant be changed.
Must of mixed me up with another post Malcolm, I never mentioned the coil pack / leads. I figured it would be coilpack at that year though...citronut wrote:Spider they dont have HT leads as they have a coil pack which sits right across all 4 spark plugs
regards malcolm
Andy.
91 205D-Turbo, gone but still missed
02 106D, TUD5B, gone but not really missed apart from the MPG
91 205D-Turbo, gone but still missed
02 106D, TUD5B, gone but not really missed apart from the MPG
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But you can use the old trick of putting water on the outlet manifold next to the four outlets (when cold) then watching how quick each one dries after you start up.citronut wrote:Spider they dont have HT leads as they have a coil pack which sits right across all 4 spark plugs, also you should not use that old trick to test which plugs/cylinders are fireing, becaues if you create to biger spark gap you can damage the ignition module,
regards malcolm
Thats different, you can code a new key (if you have the transponder code of the 2nd hand ECU). The way i read it i thought you meant re coding the 2nd hand ECU to accept the old keys.spider wrote:Well, I learned something new. The pug 106's can be re-coded as if you order a new key (inc the body) you simply recode it via the Diag... You do need all the keys though to do it as it will forget any you do not program. , I did one a few years ago and that was a 99 / T / V plate or so. Must be different with the Citroens then.