I am glad you found it. Until you do the PCV system and the ETM cleaning may be you could reset the adaptatives.willie83 wrote: It runs much, much better, but I still get just the slightest miss going up the steep hill to my house, but it performs perfectly otherwise. Could this be a dirty throttle body?
Turn off all your accessories. Turn the ignition key to 0. Disconnect the negative and positive leads at the battery. Then hold the disconnected leads together for more than 5 seconds. This will erase the adaptatives memories. Reconnect the two leads in sequence, negative last with ignition in position II. Turn ignition to 0. When you will start the engine the ECM will initiate a learning cycle based on pre-programmed parameters. From there, the system will fine tune parameters to create new adaptatives.This may help remove the slight miss that you experienced.
For the spark plugs it look to me as a lean mixture. The fact that you cleaned the MAF may help. Also the quality of the fuel used may be an issue. A bit of MMO for a few fuel tanks would help clean the injectors or you can choose your own brand .
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