FAST Dual Wideband Crazy, or am I?
#1
FAST Dual Wideband Crazy, or am I?
After the 706 heads on my 5.3 went TU, i went with some 243's and since they flow a bit more... my tune is off. I already strapped it to dyno to check tune and afr was 12.3.
I put a slightly bigger pulley on to make the tune less off until i am able to get her tuned. But for now i welded in two O2 bungs and borrowed my uncles FAST dual wideband... just to see where i was at.
This thing is driving me CRAZY During a street pull, 2nd gear, sometimes bank 1 reads 12.3 and 2 reads 10.8. Then i check it again after work and it's the other way 1 is 10.8 and bank 2 is 12.3. What the hell is going on?
This FAST box warms the sensors before you start the vehicle and has had very little use. Could the box be bad? Bad sensor? I just don't know. I got so frustrated with the wideband i took it off and put the exhaust plugs back in. I guess i will drive her easy until i get the tune.
I put a slightly bigger pulley on to make the tune less off until i am able to get her tuned. But for now i welded in two O2 bungs and borrowed my uncles FAST dual wideband... just to see where i was at.
This thing is driving me CRAZY During a street pull, 2nd gear, sometimes bank 1 reads 12.3 and 2 reads 10.8. Then i check it again after work and it's the other way 1 is 10.8 and bank 2 is 12.3. What the hell is going on?
This FAST box warms the sensors before you start the vehicle and has had very little use. Could the box be bad? Bad sensor? I just don't know. I got so frustrated with the wideband i took it off and put the exhaust plugs back in. I guess i will drive her easy until i get the tune.
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