how to get rid of extra fuel coming off throttle?
#1
how to get rid of extra fuel coming off throttle?
I have an issue coming off the throttle where I see the wideband read out down to the 10 AFR's
I'm wondering if this an issue with the VE table or more likely the injectors being held open to long compared to how fast the engine is reacting
Here is a view of what I'm talking about
I will throw up a log and a MSQ as well
overrun is setup to come on 2 seconds after it meets the requirements
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I'm wondering if this an issue with the VE table or more likely the injectors being held open to long compared to how fast the engine is reacting
Here is a view of what I'm talking about
I will throw up a log and a MSQ as well
overrun is setup to come on 2 seconds after it meets the requirements
Uploaded with ImageShack.us
#5
you lifted
the pulse width is at 1.3ms. im sure you idle higher than that. you could try removing more fuel in the map on your 25 and 13kPa rows and see if that helps. but also at the saem respect, the AFR jump way past 15.0:1 before you even cut the fuel completely at the same PW and MAP. So you have some unburned fuel leftover when you close the throttle, the AFR meters it...nothing you can really do about it.
the pulse width is at 1.3ms. im sure you idle higher than that. you could try removing more fuel in the map on your 25 and 13kPa rows and see if that helps. but also at the saem respect, the AFR jump way past 15.0:1 before you even cut the fuel completely at the same PW and MAP. So you have some unburned fuel leftover when you close the throttle, the AFR meters it...nothing you can really do about it.
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