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I just bought my Supra BPu'd. The Greddy A/F gauge bounces all over the place. The dude said it was hooked up but needed broken in. What could be the problem??
 

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Yeah it does, but it goes all the way to the rich side. Could this be right? I'm BPU running in TTC mode and it seems to pull hard as hell. I don't think it would even run right if it was running that rich, would it?
 
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Ryan P said:
Yeah it does, but it goes all the way to the rich side. Could this be right? I'm BPU running in TTC mode and it seems to pull hard as hell. I don't think it would even run right if it was running that rich, would it?
Nope, it's running fine. My car ran way rich at BPU levels until it was dyno tuned.
 
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so you guys A/F reading goes richer under WOT?
I was looking at my A/F gauge and under WOT the reading went from 11:1 at 5000RPM all the way to 12.7:1 at 6500RPM.....which means I 'm running leaner as RPM raises. I'm BPU without fuel controller, is that normal?

thanx
Jonas
 
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