General MultiECUScan - Where to find

[shadowownz]

Hey there mates! I don't know it this topic is allowed, feel free to delete if not. I have an OBD2 (bluetooth ELM327) and need to recalibrate the needles of my Fiat Stilo 1.9JTD 115HP. Here's the thing, i don't own any software that does that and 30 euros for a couple of times of use, it just doesn't seem a proper investment. Heard of MultiECU and FiatECU but both are paid (well, there are free versions but cannot mess with the dashboard). Any other alternatives that you guys know that might solve my issue? Both the temp and speed needles are off (temp passes half point despite reading middle and speed is off by minus 10/15Km). If anyone has a solution, it would be much appreciated.
NOTE: I'm from western Europe, none of my friends are mechanics and they charge me 20 euros to do the job.

 

[shadowownz]

Well, managed to solve this. Someone gifted me a MultiECUscan, just had to buy an ELM327 cable (around 10€) from aliexpress. I bought this one: https://www.aliexpress.com/item/100...o.order_list.order_list_main.5.720e18022qrsXG

I tested an obd2 bluetooth from a friend of a friend but that didn't work, couldn't connect to ECU despite MES saying everything was fine with the adapter, so i had to buy a cabled one in order to test. When it arrived, i tested, no success, error connecting to the ECU. I read something around this forum that other ELM had an extra resistor that needed to be removed but my board was totally different from the others (it was red, different schematics, and the others were green). Since i'm no electrical engineer, gave it a shot, searched around (many italian videos about the topic, although i dont speak italian) and my good italian friends were explicit enough so i could understand that i needed to measure pins 6 and 14 with a multimeter and if there was a resistance (120-150 ohm), then a resistor had to be removed. Followed the traces from pins 6 and 14 and figured it was a small resistor, near a 8 or 10 legged chip on the top of the PCB (near the obd pins) marked 1200 that needed to be removed. Gave it a shot, went back to my Stilo and tested...VOILA! Worked first try, no need to mess around with anything else. Can do a proxy allignement, mess with my dash, climatronic and whatnot. Hope this helps someone, best 10€ i've spent.