Z30DT ECU remapping help needed in South Africa!

[jannie]

I have a 2006 Vectra-C Estate 3.0l Z30DT which I (stupidly!) imported to my home.

After finding and repairing a number of problems over the years I finally removed the DPF inards.

I now get the following errors:

P1112-62	not present	Swirl Flap Stuck Open (Bank 2)
P1901-12	not present	Particulate filter pressure sensor: Hose line malfunction
B3901-00	not present	Wrong environment Identifier Received

Also there is white smoke in the exhaust now.

I blanked off my EGR and bypassed the EGR intake cooling. [This did not help as there is still smoking. So I think its a blown cylinder head gasket, but that is not why I am writing this!]

I sent my (Isuzu/Denso marked) ECU to a local company to take care of the EGR blanking and DPF removal. I should probably also bypass the swirl valve error (if that's possible. The warning light goes off if I restart the engine after a minute or so [i.e. once it's warm].) They however cannot help me with it because none of their tools have the 275800-3922 protocol, and they don't have a diagram of the pins.

Does anyone have any advice about how to solve this problem barring sending the ECU to UK (which is pretty expensive). For example, can one use another protocol to at least read (and later re-write) the program and then send it to someone to edit??

Who do you recommend to remap a Denso ECU?

Any help is highly appreciated.

[Jon1796]

If not present old codes clear and reread.

[Jon1796]

https://mhhauto.com/Thread-Opel-Vect...-Z30DT-dpf-off

not tested just found.

[Jon1796]

You can buy kess or other ecu readers/writers so you read ecu save file send off then rewrite back into ecu.
https://www.ebay.co.uk/itm/203675820...mis&media=COPY

[jannie]

https://mhhauto.com/Thread-Opel-Vect...-Z30DT-dpf-off

not tested just found.

Thanks for this link. Unfortunately you have to pay to subscribe, but at least it looks like it can be done. I did find one German company there who I have written to.

[jannie]

You can buy kess or other ecu readers/writers so you read ecu save file send off then rewrite back into ecu.
https://www.ebay.co.uk/itm/203675820...mis&media=COPY

Thanks for this. Sadly I am not a millionaire. These units are very pricey. I finally found a company, Quantum Tuning, who used KESS 3 successfully on my car. Going like a Boeing. Also not cheap!

[Jon1796]

But you got there in the end, that’s the main thing

[jannie]

After the ECU remapping I now have a recurring flashing DPF regen light. I got rid of by taking it to the agents who used TECH2 to initiate a new DPF. But after a 500 mile journey the light has come back on. This makes no sense as I expect the sensor readings to be ignored. Any ideas??

[northpole]

If they haven't disabled it but just ran a regeneration session it might not have been completely clean.

Ergo as long as the dpf is there and active well it can come back

[jannie]

If they haven't disabled it but just ran a regeneration session it might not have been completely clean.

Ergo as long as the dpf is there and active well it can come back

The DPF is gone. The remapping was supposed to be done. BUT, the light keeps on flashing. How to permanently remove the light is the question.