Hi, I bought some months ago on ebay a chipped ecu (S2 late Blue Red Black V86AB 12A297 CA). It's chipped with Superchip and I haven't fitted
it until last christmas holidays. After fit this ecu the boost doesn't work correctly, the gauge doesn't misure more than 0.2 bar when 0.5 is
the standard value. I refitted my unchipped ecu (hearts&diamonds spec90) and the car runs fine again. So this chipped ecu fails. These are my questions..

1) Any of you has ever have this problem? Can be the fail produced by another critical component apart from Motorola micro?

2) I'd like to try to change Superchip micro from this ecu (blue Red Black) to another std ecu. Can I do it? I've seen that there are some
differences in the layout of pre spec 90 and spec90 ecus, and I'm wondering if I can use this chip in any S2 ecu.

Thanks and sorry if I can't explain my questions well, my vocabulary is too limited...

Happy New Year!!

 

Help me please...

 

I'm sorry but I cannot see how the ECU can prevent the turbo from making the base pressure of the actuator. OK, I suppose if its doing something crazy with the timing, but I still can't imagine it.

Have you checked the timing with a strobe upon fitting each ECU?

 

Yes it can........ Amal valve Christian

If the ECU is reading high ACT's or knock it will pull the timing back and close the Amal valve this would cause the boost problem he is experiencing.

Sounds like a duff ECU to me.

 

Is the risk of buying electronic devices on ebay...
Now at least, I'd like to know if the chip runs well in another ecu..

Which is the boost limit in heart&diamonds ecus (spec90)??

Thanks for your answers

 

The chip will run in another Blue Red Black only!
Heart & Diamonds boost limit is around 10psi.

 

Hi, I've listened that some ecus must to have the amal valve disconnected to run correctly. Is it true??

 

ive never had amal valve connected on all my rs turbos,jamie at jamsport always disconnects them and puts a bleed valve between actuator and turbo.never had any problems like that.

 

It just means if there is a problem then the ECU cant do anything about it, but loads of people run without them.
Your problem is the ECU, if you remove the Amal valve your just masking the problem and your timing could still be retarded by the ECU which is bad.

 

Hi Karlos, so in your opinion in this case to remove amal valve is not the solution? When I fitted my std ecu the car runs perfectly.

Is possible that this chipped ecu required to run only without amal valve?

Bye.

 

100% NO!
The chipped ECU is faulty IMO that is why your standard ECU works with no problems.

 

OK. Anybody of you has a chipped ecu for sale??

Thanks for you help Karlos!!