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View Full Version : 2008 Astra H Z19DTH - P0400-->OFF & better efficiency for engine upgrades



Agwnistikotatos
17th November, 2015, 09:03 PM
Hello mates,

I've bought a used 2008 astra H 1.9 cdti 150hp. (Manual)
The only mod it had been done from the previous owner, was the removed DPF. (physically and from the ECU)
The previous owner told me that also EGR was disabled from the ECU, but seems it didn't.

Now, I've made these modifications:
-Full 76mm decat exhaust
-EGR blanked
-Swirl ports removed
-Cold air induction
-Custom bigger front mount intercooler

After the EGR blanking, I have constantly the "P0400-5A" error.

Could someone remove the P0400-5A error and give the best efficiency for this modifications that have been done?

341996

The file has been read with KESS v2.

Thank you in advance,
Thanasis

Prime
17th November, 2015, 09:53 PM
for good egr off need full bdm

draganelektricar
17th November, 2015, 11:08 PM
Remove EGR connector

Agwnistikotatos
17th November, 2015, 11:09 PM
Remove EGR connector
Thanks a lot, mate!
EGR, is physically blanked. Also needed to disconnect it?
Will I see a performance gain or better consumption with this file?

*DPF is already disabled on the file I've posted.

Agwnistikotatos
17th November, 2015, 11:09 PM
for good egr off need full bdm
Yeap, but I've seen some other members have done it through obd...?

Agwnistikotatos
18th November, 2015, 07:03 AM
Good morning!

Which is the limit pressure for the stock turbo?
I was thinking to set the requested pressure to exceed the map sensor readings eg 2bar and control the pressure only through the requested duty cycle throughout the rpm. Eg. 80% @ 3000, 90% @ 4000, 100% @ 5000.
Is it possible?

For what horsepower are capable the stock injectors and which is the maximum fuel rail pressure can be achieved with the stock high pressure pump?


Thank you!!!

Agwnistikotatos
18th November, 2015, 12:52 PM
Any ideas, guys?:party :

Agwnistikotatos
18th November, 2015, 08:28 PM
Remove EGR connector
P0400-5A just came on again...
:/342168

CustomCars
18th November, 2015, 08:39 PM
Because EGR off solution is bad, needed make BDM dump and then can get correctly off....

Agwnistikotatos
18th November, 2015, 08:47 PM
Because EGR off solution is bad, needed make BDM dump and then can get correctly off....
I've never done it before...
I will try to do it and upload the file...
Thank you.

Agwnistikotatos
24th November, 2015, 11:33 PM
I have found my full BDM readout ori, on the internet....

https://www.carfiles.net/opel-astra-1.9cdti-bosch-edc16c39-1350

Could this help?

morgano
25th November, 2015, 12:27 AM
It could, but you will need to bdm it to the ecu, not obd. ;)

Agwnistikotatos
25th November, 2015, 12:32 AM
It could, but you will need to bdm it to the ecu, not obd. ;)
I thought the "problem" existed only when reading, due to partial reading... Exists also when writing via OBD ?

morgano
25th November, 2015, 11:21 AM
Yes, obd is partial, no matter you try to read or write.

Agwnistikotatos
25th November, 2015, 12:33 PM
I understand.
Thank you.