VE Low Speed in Tunerpro
07-25-2008, 01:44 PM
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Car: Corvette
Engine: 388 HSR custom Cam see sig
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Axle/Gears: D44 3:45
VE Low Speed in Tunerpro
can someone explain to me or sent me somewhere with a link as to exactly what it is I'm looking at. I'm on my 7th VE Learn, car seems to runs great . I am numbers that range from 41@400 RPM to 89@1900.
Thanks guys sorry for all my ?s
what I notice to is that in the sensor diagnostics screen my AFR (which I'm assuming is air to fuel ration) is running 11 to almost 19 in somecases. Shouldn't I have a target A/F of 12.5?
Thanks guys sorry for all my ?s
what I notice to is that in the sensor diagnostics screen my AFR (which I'm assuming is air to fuel ration) is running 11 to almost 19 in somecases. Shouldn't I have a target A/F of 12.5?
Last edited by slrvette; 07-25-2008 at 01:59 PM.
07-25-2008, 08:10 PM
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Re: VE Low Speed in Tunerpro
The VE tables are commonly referred to as the "fuel tables." Basically speaking, they control the amount of delivered fuel based on the engine RPM & load (MAP). Note that there are other inputs to the ECM that also affect the fuel delivery.
The sensor diag screen shows the sensor values. So the NB & WB graph is the reported values from each. Not unusal for them to change. They can also deviate from the commanded (under certain circumstances).
Rbob.
The sensor diag screen shows the sensor values. So the NB & WB graph is the reported values from each. Not unusal for them to change. They can also deviate from the commanded (under certain circumstances).
Rbob.
07-25-2008, 10:11 PM
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Re: VE Low Speed in Tunerpro
Thanks... Sorry to ask but how does this VE Low Speed look
07-26-2008, 10:01 AM
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Re: VE Low Speed in Tunerpro
Usually a graph view is a better look. Click the button there on the table. Can then rotate the graph by holding Ctrl down, click and holding, then moving the mouse.
RBob.
RBob.
07-27-2008, 09:53 AM
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Re: VE Low Speed in Tunerpro
High speed VE looks decent. The low speed could use a little editing. There is the peak at 30 Kpa, from 400 to about 1100 RPM. Bring this down and level it with the surrounding area.
The reason the peak happens is that it is in an area that isn't used. So no learn takes place there. It doesn't hurt to leave it as it is. But it is easier to look at the table without that peak.
RBob.
The reason the peak happens is that it is in an area that isn't used. So no learn takes place there. It doesn't hurt to leave it as it is. But it is easier to look at the table without that peak.
RBob.
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