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View Full Version : Mazda 6 - Denso - RF5P - EGR off



locarno
25th June, 2015, 07:44 PM
Hello
Can somebody can EGR off in this ECU ?

Car: Mazda 6
ECU: Denso RF5P
Flash: F29F400BC

https://dl.dropboxusercontent.com/u/44123774/!Elektronika%20Samochodowa%20pliki/ECU/Denso%20RF5p/sticker.PNG
https://dl.dropboxusercontent.com/u/44123774/!Elektronika%20Samochodowa%20pliki/ECU/Denso%20RF5p/PCB.jpg

morgano
25th June, 2015, 10:26 PM
Unplug egr and remove DTCs

locarno
26th June, 2015, 05:21 PM
Unplug egr and remove DTCs

After EGR unplug, diagnostic shows DTC P0406

Can somebody remove this DTC ?

morgano
27th June, 2015, 01:57 AM
What tool you use to read/write it?

bobolin4o
27th June, 2015, 07:56 AM
What tool you use to read/write it?

I suppose some programmer, it's 29F400 after all...
On the picture - up and right.

locarno
27th June, 2015, 04:44 PM
What tool you use to read/write it?

Programmer
Elnec Jetprog

morgano
27th June, 2015, 05:18 PM
So you need dtc an checksum calculated, sorry can't


Regards,

locarno
27th June, 2015, 07:31 PM
So you need dtc an checksum calculated, sorry can't


Regards,

Do you know software which can correct checksum in this ECU ?
I modified dump (dtc switches) and write to ECU, but car won't start.

morgano
27th June, 2015, 08:12 PM
If i could calc checksum you would have here for download ready file.


Regards,

bobolin4o
28th June, 2015, 08:28 AM
WinOls 1500 have appropriate checksum for this ECU...
Regards!

bobolin4o
28th June, 2015, 10:26 AM
Your file...
Regards!


Clear your inbox...

locarno
28th June, 2015, 10:52 AM
Your file...
Regards!


Clear your inbox...

Cleared.

If I found correct DTC switches in this file and your checksum is ok this file should be ok. I'll test it.

marsete
29th June, 2015, 01:42 PM
Hi Locarno,my car is mazda 5 with identical ecu,is posible sendme your solution for egr off??Thanks and regards

marsete
29th June, 2015, 01:43 PM
Youe car is posible reprogram sor obd??with piassini soft??Regards

locarno
30th June, 2015, 08:40 AM
Hi Locarno,my car is mazda 5 with identical ecu,is posible sendme your solution for egr off??Thanks and regards

As far as I know this ECU doesn't contains EGR map.
I simply unplugged EGR and stayed with ori dump in ECU. DTC disappeared for now. I don't know for how long.
So I don't tested modified file.


Youe car is posible reprogram sor obd??with piassini soft??Regards

I desoldered flash and read/write using Elnec Jetprog programmer.
Can't read using Piasini


betrescudan (http://www.auto-diag.ro/User-betrescudan) wrote:

trasdata ok read

Rolandmo
8th June, 2016, 01:38 PM
Does anybody know what is the difference between DENSO RF5C and DENSO RF5T. I also have mazda 6 and would disable egr valve in pcm.

bobolin4o
9th June, 2016, 10:35 PM
Ghnah...
I have a friend, who own a ~~~~ing Mazda 6 with a ~~~~ing RF5T ECU... and ~~~~ed EGR...
Now i play with this ECU and achieve - no DTCs and MIL on. Of course ESP light is on too...
There are two different DTCs blocks - one for EOBD and one for manifacturer specific codes.
If i маке zero spec. code in the flash, there is no DTC when i scan the ECU with spec. manif. diagnostic protocol, but the DTC is there if i scan trough EOBD protocol... and contrariwise...
The ~~~~ing Swiftec never heard for this ECU...
Is there someone who can help me with this issue... i mean DTC off, EGR off... the file from the first post is similar to mine, so...

bobolin4o
10th June, 2016, 06:01 PM
My subject is closed, everything is ok now...