Vw polo 1.2tdi Delphi DCM 3.7 Crash

**amtchip** · 20th November, 2018, 07:54 PM

Hi guys,
I got an VW polo 1.2tdi 55KW 75PK with delphi 3.7 read with CMD flash
stopped writing by an empty battery and I can not write back the original file.
The Ecu number is : 03P906021B
I use K-tag, CMD Flash & Kess

**voltechcar** · 20th November, 2018, 08:24 PM

use K-tag and write flash in boot on the table, of course only genuine have dcm3.7

**amtchip** · 20th November, 2018, 11:57 PM

I did try to write with k tag but still dont start i think because off checksum i dident have good ori to compare in K-tag!! Do someone have good cs file to write with k tag ?

**voltechcar** · 21st November, 2018, 12:24 AM

upload your file because I not understand how you write file if you not have orginal.

**amtchip** · 21st November, 2018, 12:38 AM

This is the first read i did OBD
And the first read i did K-tag but it said checksum corrupt in k-tag

**voltechcar** · 21st November, 2018, 01:17 AM

write this file by K-tag, If ecu have comunication and no start use frf file and flashing ecu than start.

**amtchip** · 21st November, 2018, 01:53 AM

Originally Posted by voltechcar

write this file by K-tag, If ecu have comunication and no start use frf file and flashing ecu than start.

I did write with k-tag and frf with cmd flash and now car start but Goes off imidiatley and say immobilizer in display

**voltechcar** · 21st November, 2018, 08:46 AM

write by obd your file again and check

**amtchip** · 21st November, 2018, 12:55 PM

I try with cmd flash obd but it wont write the file now. Also if i want to write Frf again it wont do it.

**voltechcar** · 21st November, 2018, 03:12 PM

yes bacause immo is active, you must learn immo online or use k-tag and write your file in boot

**amtchip** · 21st November, 2018, 03:13 PM

So the file i read first in cmd obd need to write in k tag MPC en then should start ?

**voltechcar** · 21st November, 2018, 06:27 PM

yes, should be

**silvarog3r** · 17th February, 2019, 06:18 PM

This week read same ecu with ktag well,and write
well ,car dont start erase immo data in ecu and
program original backup dont work compare files
ktag erase file in mpc.