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jimmyparker · 04-05-2016, 07:35 AM

Ed, I recently bought a '94 Mustang N/SA car that is currently set up on closed loop. The o2 is in the # 2 primary pipe and the afr is 12.2 or so on the two step and 12.9 at the finish line, the target setting is12.8. Does it take a major revamp of the fuel map when changing from closed to open loop? The car is very consistent but in reading this thread I became concerned that I'm giving up some performance running it closed.

Any info will be appreciated but remember I'm a novice when talking FI.

Jimmy Parker

04-05-2016, 07:35 AM	#69
jimmyparker Member Join Date: Oct 2009 Location: columbus, georgia Posts: 385 Likes: 66 Liked 309 Times in 88 Posts	Re: Fuel injection? Open or Closed loop? Ed, I recently bought a '94 Mustang N/SA car that is currently set up on closed loop. The o2 is in the # 2 primary pipe and the afr is 12.2 or so on the two step and 12.9 at the finish line, the target setting is12.8. Does it take a major revamp of the fuel map when changing from closed to open loop? The car is very consistent but in reading this thread I became concerned that I'm giving up some performance running it closed. Any info will be appreciated but remember I'm a novice when talking FI. Jimmy Parker