Hey guys !!

Well, what the title says ... I would like to know if anyone has had the same thing in Med 9.1

I explain the situation ...

Cold car, lambda heater adaptation and lambda, reset. I start the car and go for a ride. Back, adaptation of past lambda heater (I understand that it only does it from cold starts). I stand still with the engine started in idle. ALL missfire counters on all cylinders to 0. All ok.

Following the above without moving. Reset adaptation of lambda and lambda heater. I stay still with the engine in idle and before long (I don't remember if 30sg, 1 minute ...) the missfire counter of cylinder 4 starts to count missfire until it reaches 29 in less than 2 minutes I think .... and come back again.

Aim in general. that the car running and wot, there are no missfires, after rescaling maf almost does not delay ignition in wot (-1.5-2 degrees, above nothing), perfect lambdas at 0.82 and runs like a missile. change spark plugs and cylinder coils and it plays the same ... it's weird.

I would like to understand why that happens .... because the engine is perfect.

if anyone has a little idea. Good to Know. thanks!!

they are normal values. sf at 0.2-0.3 and lf over 3. I still need to finish adjusting the rescaling of the intake yet .... But I do not understand the action of the ecu .... if the heater check is not passed lambda, is when it throws the missfires in cylinder 4 ... as soon as that check passes, everything is ok.

mmm you gave me an idea .... to reset without starting the car. only active contact ....
but I'm still looking for an explanation to that ...

a quick solution would be to deactivate the lambda heater diagnosis and that's it ... but I think it is a slop. if the lambda heater breaks, you don't know ... I'm going to try logging in when it happens.