inj. Pulse width 16+ KR
02-12-2005, 07:45 PM
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inj. Pulse width 16+ KR Hi
I was on a dyno today and noticed Im getting KR at WOT from 3000RPM and up. As the rpm goes up the kr goes down, my a/f is at 13.0. I also noticed that when the inj. pulse width is at 16 to 19 and my Bank 2 o2 sensor is reading 990-970 this is when the kr is the highest. This 990 seems rich, could that cause knock retard, but my wide band a/f on the dyno showed 13.0.
Thanks for any input
I was on a dyno today and noticed Im getting KR at WOT from 3000RPM and up. As the rpm goes up the kr goes down, my a/f is at 13.0. I also noticed that when the inj. pulse width is at 16 to 19 and my Bank 2 o2 sensor is reading 990-970 this is when the kr is the highest. This 990 seems rich, could that cause knock retard, but my wide band a/f on the dyno showed 13.0.
Thanks for any input
02-13-2005, 11:09 PM
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Originally Posted by cbota
Hi
I was on a dyno today and noticed Im getting KR at WOT from 3000RPM and up. As the rpm goes up the kr goes down, my a/f is at 13.0. I also noticed that when the inj. pulse width is at 16 to 19 and my Bank 2 o2 sensor is reading 990-970 this is when the kr is the highest. This 990 seems rich, could that cause knock retard, but my wide band a/f on the dyno showed 13.0.
Thanks for any input
I was on a dyno today and noticed Im getting KR at WOT from 3000RPM and up. As the rpm goes up the kr goes down, my a/f is at 13.0. I also noticed that when the inj. pulse width is at 16 to 19 and my Bank 2 o2 sensor is reading 990-970 this is when the kr is the highest. This 990 seems rich, could that cause knock retard, but my wide band a/f on the dyno showed 13.0.
Thanks for any input
If the accurate wideband was showing 13 then you are lean which will cause knock - dont believe your 02 readings as they are only reliable from 14.4 to 15 anywhere else they cant be used accurately