Quote:
Originally Posted by Jerry Clayton
have you been running leaded gas?????We constantly see computer controlled engines that have have leaded fuel run contaminating O2 sensors which then throws off the tune. I would suspect in your case that the fast system thinks everything is alright because of a bad sensor
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Jerry, I have not been running leaded gas. For the most part its been c110 and sometimes c116. If I use pump gas its strictly shell premium and then I don't push it too hard.
My first thought was the O2 sensor but I had access to another new one and installed for a short trip...same results so I switched back.
For right now I have access to another identical fast ecu which I am going to swap out. If that doesn't cure it then the next is to swap out the injectors. I am curious if the msd 6al might also be intermittent.....