WTB - 406 Bosch model ECU (1998)
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WTB - 406 Bosch model ECU (1998)
Hi all,
I have recently done the bosch/Lucas conversion on my 1998 406SRDT and the tacho cuts out at 3000 rpm. Looking to get a second hand ECU so the tacho works all the time.
Postage to Sydney Australia with the price.
Cheers, Tim.
[email protected]
I have recently done the bosch/Lucas conversion on my 1998 406SRDT and the tacho cuts out at 3000 rpm. Looking to get a second hand ECU so the tacho works all the time.
Postage to Sydney Australia with the price.
Cheers, Tim.
[email protected]
- HimBigChief
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Re: WTB - 406 Bosch model ECU (1998)
I've got a spare 2.1TD ECU. Not sure how much postage would be to Australia though. I'd be after £25 for the ECU plus the postage cost.
Re: WTB - 406 Bosch model ECU (1998)
do you know what number the ecu should be?
- CalamityJames
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Re: WTB - 406 Bosch model ECU (1998)
I've been discussing this at length with mark, as we've both had the 3k problem. It seems there are three factors which affect if the ECU is the right one:
1. Manufacture date (should be 1996)
2. Large number at the bottom (should be 96 274 538 80)
3. The letter on the end of the line beginning DCU R (should probably be 'A')
This ECU works:

...and this one doesnt:

Also, if you find your car runs on for 30 seconds if the tacho hasn't 'crashed', then the ECU will also cure that!
1. Manufacture date (should be 1996)
2. Large number at the bottom (should be 96 274 538 80)
3. The letter on the end of the line beginning DCU R (should probably be 'A')
This ECU works:

...and this one doesnt:

Also, if you find your car runs on for 30 seconds if the tacho hasn't 'crashed', then the ECU will also cure that!
Re: WTB - 406 Bosch model ECU (1998)
AHA,
Yes mine runs on for a bit, I just tell people it has a turbo timer! LOL.
OK, I will keep looking. There are very few early 406TD's in australia so hoping to get the part from UK???
Cheers.
Yes mine runs on for a bit, I just tell people it has a turbo timer! LOL.
OK, I will keep looking. There are very few early 406TD's in australia so hoping to get the part from UK???
Cheers.
- CalamityJames
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Re: WTB - 406 Bosch model ECU (1998)
In case HimBigChief's ECU is the wrong one, there's one on eBay that I've already confirmed with the seller as having the correct numbers:750frog wrote:AHA,
Yes mine runs on for a bit, I just tell people it has a turbo timer! LOL.
OK, I will keep looking. There are very few early 406TD's in australia so hoping to get the part from UK???
Cheers.
http://www.ebay.co.uk/itm/ws/eBayISAPI. ... 0879770740
Just a disclaimer: Although they have provided me the correct numbers, it might be worth double checking with them, and also as this is not an exact science yet (not many 406 2.1s running on Bosch) I may still be incorrect!
Re: WTB - 406 Bosch model ECU (1998)
Anyone got one????
Comeon they must be like holdens and fords here in australia, EVERYWHERE!
Comeon they must be like holdens and fords here in australia, EVERYWHERE!
- CalamityJames
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Re: WTB - 406 Bosch model ECU (1998)
Did the eBay link not post overseas?
Re: WTB - 406 Bosch model ECU (1998)
HelloCalamityJames wrote:I've been discussing this at length with mark, as we've both had the 3k problem. It seems there are three factors which affect if the ECU is the right one:
1. Manufacture date (should be 1996)
2. Large number at the bottom (should be 96 274 538 80)
3. The letter on the end of the line beginning DCU R (should probably be 'A')
I've baught this ECU to solve my tacho problem : But it's always the same, the tacho drop at 3000 rpm.
What can i do ? Does someone here sell a right ecu ?
Help me, please

Best regards
- Gary406
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Re: WTB - 406 Bosch model ECU (1998)
did you sort an ECU ??
im breaking a 1998 1.9 xud ... wonder if that is a bosch ECU.... i will remove it later and send you some pictures ..
im breaking a 1998 1.9 xud ... wonder if that is a bosch ECU.... i will remove it later and send you some pictures ..
2004 (04) Volkswagen Bora 1.9 TDi (100)
Re: WTB - 406 Bosch model ECU (1998)
Hi
My engine is a 2.1, with epic system.
The pump bsch works fine but i've lost the tacho.
So i search the right ecu.
Thanks a lot
My engine is a 2.1, with epic system.
The pump bsch works fine but i've lost the tacho.
So i search the right ecu.
Thanks a lot
- Gary406
- The moderator with a 1.9TD!
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- Joined: Sun Mar 28, 2010 9:56 pm
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Re: WTB - 406 Bosch model ECU (1998)
i have a bosch ECU removed from a 1998 1.9 TD


2004 (04) Volkswagen Bora 1.9 TDi (100)
Re: WTB - 406 Bosch model ECU (1998)
Thanks, but it's not the right ecu.
If we have a 2.1 engine, we need a lucas ecu
++
If we have a 2.1 engine, we need a lucas ecu
++
Re: WTB - 406 Bosch model ECU (1998)
Hello
I've got a very very good and big tip for your bosch 406 2.1 converted, especially for tacho brake down at 3000 rpm.
You don't need to buy a special ecu from 1996, with a strict serial. Just keep your origal ECU
You just have to let your accelerator potentiometer connected and blocked at the maximum position.
You can easy use a colson to block the potentiometer to the max position.
And it's enough !! Your tacho will not drop at 3000 rpm !!
I hope this tip will help you. I found it after watching those very interesting french video.
http://www.youtube.com/watch?v=qTODC4KMTJw
Best regards,

I've got a very very good and big tip for your bosch 406 2.1 converted, especially for tacho brake down at 3000 rpm.
You don't need to buy a special ecu from 1996, with a strict serial. Just keep your origal ECU


You just have to let your accelerator potentiometer connected and blocked at the maximum position.
You can easy use a colson to block the potentiometer to the max position.
And it's enough !! Your tacho will not drop at 3000 rpm !!

I hope this tip will help you. I found it after watching those very interesting french video.
http://www.youtube.com/watch?v=qTODC4KMTJw
Best regards,