I would check the main ground wire between battery, chassis and engine.

This 5 minutes of disconnection of battery should do something like 'restart' of ECU as I understood.
You can try, you will see.

I had the same problem and this was because of misfires. One ignition coil was bad. Does work all four cylinders on your car?

My opinion is, that both O2 sensors are ok. Both shows values between 0,05-0,8V and this is ok. RPM changing on idle is probably due the mess in throttle valve (very common problem). My picture of o2 sensors: "volnobeh"=idle , "proslapavani plynu"=playing with gas pedal (rpm chan...

Ok, I understand.
As follow your explanation - fault P0136 was confirmed because is "Stored" now. But no MIL light on dashboard! It is what i cant understand

About "freeze frame" - I cant read it, I dont know how?

p0136.jpg About two weeks ago I cleared the fault. And yesterday came again. Maybe there was some short flashes of MIL light in that period, but I´m not sure. But when I read the fault, the MIL light was OFF. Maybe when fault is in mode "Present" then light ON means currently ON. And when...

I did new testing and export data to csv file. And there is several times value of spark advance about 6400 deg. http://merkur_sound.sweb.cz//aaaa.csv I would like to upload the file like attachment, but extension csv is not allowed. And I did find another problem, I have read fault P0136 - O2 senso...

I tried another scale, some error message occurs.

I looks like some strange value of spark advance is received when accelerate...?

hi mjanezic,
Dont worry, this cable is detected as ELM 327 v1.3 and works fine, I personaly tried it, even service interval reset,
as you can see:
[img]http://merkur_sound.sweb.cz//v2da.jpg[/img]

Yani wrote: ELM 327 v1.3 SUPPORT! The program now works with 2 types of interfaces - VagCom and ELM 327 v1.3. There are limitations for both interfaces - VagCom does not work for CAN modules, and ELM 327 does not work with some of the older modules (like the airbags) and that is a limitation of ELM ...