Hello again, Well, in this case the problem have to come from the 3 pin adapter but I repaired it because the GND pin was not connected to any OBD pin. It should work now but I always get "No ECU response". I tried the connection to ECU with a KKL cable and I have problems with latency tes...

Hi all, first of all congratulations to this community, there's a lot of very useful information. I'm writing here because I bought an ELM 327 adaptor and I can't connect to a Fiat Marea JTD 105 '01 ECU. The test on MES are correct and the interface returns every command with OK but it can't connect...