Hello, I'm new to the forum, and would like to take the opportunity to say that all the information on this site has been invaluble to me in my quest for better gas mileage.
The EFIE installation on my fathers '04 Saturn Ion went smoothly; :)that is, after I figured out which was the signal wire at the computer (it changed color between the 02 sensor and the computer)
. The response to the adjustments went according to the book. I could even hear the difference in the sound of the engine as I did the adjustment. The problem is: I may have adjusted it too high. I went to .300, and took the car for a test drive, when I accelerated hard, the check engine light came on and flashed for several seconds then went off
. My question is: if the computer went into closed loop, would the CE light be off or on, and if it is indeed in closed loop, how do I get it to pop out. The car just went from west TN to central Indiana, and the fuel mileage is either at the normal level, or slightly lower, and this is with the HHO device installed. Any help would be appreciated.