so this time, they tell me that I MUST (they actually used all caps on the work order) use 91 octane (my response, as it was the first time they wrote this was I ALWAYS use 91 ocatne) and that the CEL is being triggered by my K&N air filter.
Any thoughts? I think they just can't figure it out and are now trying to blame me for thier problem. If it was the filter, why didn't they tell me this the first time? Why was it necessary to reflash the ECU then?