Thanks for nbtun at the digital-kaos forum to share free solutions of reworking clone Ktag and Kess V2 ECU tuning tools to work completely like the genuine.
Original PCB in the photo … use if you have any other issues.
Replace by quality components.
Thx button would be nice.
Free for everybody!!! No more payment for this!
TRY ON YOUR OWN RISK
Part 1 – KTAG hardware rework
Ktag before rework:
Source: http://www.eobdtool.co.uk/wholesale/k-tag-ecu-programming-tool-master-version.html
KTAG hardware rework solution:
Transistors:
BCR112
BC817
MMUN2113LT1G
BC807
NUP2105LT1G
8x WFs = Infineon, BCR112 NPN Digital Transistor
7x 27E = ON Semiconductor NUP2105LT1G
8x 6DW = NXP BC817,215 NPN Bipolar Transistor
3x A6c = MMUN2113LT1G / MMUN2113LT3G check your KTAG pcb may already have 3 x A6c
2x K5B = BC807-25-7-F PNP Bipolar Transistor
k6b = BC817-25 SOT-23 (in some originals)
All capacitors should be replaced with the exact same one but new
There is no buzzer in Ktag
Part 2 – Kess v2 hardware rework
Kess v2 pcb before rework:
KESS V2 rework solution:
Transistors to use :
BCR112
MMUN2113
BC817
Murata filters:
NFE61PT472C1H9L (connect ground for all of them)
Capacitors:
1uF – 35V
220uF – 10V
10uF – 16V tantalum
Fill up all holes from side to side
Use photo as reference if others components are different
