Showtime3492
11-17-2012, 07:02 PM
Hey guys.
Just buttoning up my 4.6 stroker. On a 2000 XJ Installed an aftermarket air fuel gauge and a wideband o2 to monitor air fuel ratio.
Then started it up to see what it was running at.
It should stay around 14.7 untill it is at operating temps.
I am also running a map sensor voltage adjuster. to increase the stock 5.0v up to tune the air fuel ratio accordingly
Initial start up yielded Airfuel ratio bouncing around between 14.3-15.8 that was on a map adjusted voltage of 5.35v
Cranked map voltage up to 6.20v and it held around 13.6-15.2
bouncing around fairly erraticly.
Have vids of the guage ill post.
My intitial questions are.
1. i thought that the map adjusted voltage did not kick in untill at above 80% throttle?
2. What is going on here seems kinda crazy
3. How screwed is it? lol
http://www.facebook.com/anthony.sher...=4160146647580
Just buttoning up my 4.6 stroker. On a 2000 XJ Installed an aftermarket air fuel gauge and a wideband o2 to monitor air fuel ratio.
Then started it up to see what it was running at.
It should stay around 14.7 untill it is at operating temps.
I am also running a map sensor voltage adjuster. to increase the stock 5.0v up to tune the air fuel ratio accordingly
Initial start up yielded Airfuel ratio bouncing around between 14.3-15.8 that was on a map adjusted voltage of 5.35v
Cranked map voltage up to 6.20v and it held around 13.6-15.2
bouncing around fairly erraticly.
Have vids of the guage ill post.
My intitial questions are.
1. i thought that the map adjusted voltage did not kick in untill at above 80% throttle?
2. What is going on here seems kinda crazy
3. How screwed is it? lol
http://www.facebook.com/anthony.sher...=4160146647580