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Boost and Auto VE

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Old Dec 31, 2006 | 02:30 PM
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Default Boost and Auto VE

What am I doing wrong? I'm already lean in boost and it looks like it's trying to take away more fuel. My AFR @ 135 kPa= or - is 12.70-15.08 which gives it an average of 13.8.
Attached Thumbnails Boost and Auto VE-da2a5d96-bed0-e740-397dc497f24dbeec.jpg   Boost and Auto VE-da2b9822-b103-aba5-b05b5de1ca01ab9c.jpg  
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Old Dec 31, 2006 | 02:49 PM
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I'm having a hard time seeing your map screen shot. One thing I could tell, what that you have one map to cover from 15-215 kPa. It will probably help you to split the VE table into two maps corresponding to your calibration. IIRC, one map will be identical to your VE table (15-105 kPa) and the other to your boost map (105 - 215 kpa).

From the chart view, you're commanding 14.xx AFR under the highlighted region. You should be commanding much richer than that.
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Old Dec 31, 2006 | 02:57 PM
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So how do I get it to command a richer AFR when I'm in boost?
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Old Dec 31, 2006 | 04:54 PM
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Originally Posted by billyjo
So how do I get it to command a richer AFR when I'm in boost?

TAQuickness id dead on right.

Plus which cos are you using? COS5 has a table that lets you set the target AFR plus you need to set PE to activate at 40kPa and set the rpm vs PE table to 11.5 : 1 just for starters....can lean it up later.
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Old Dec 31, 2006 | 05:48 PM
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Originally Posted by TAQuickness
From the chart view, you're commanding 14.xx AFR under the highlighted region. You should be commanding much richer than that.
I agree 100%. I wouldn't go WOT anymore until you set your commanded AFR/PE to 11.5. That is way to lean for a FI setup. If you need help getting it setup, email me your tune and I'll get you going in the right direction.

Last edited by Black02SS; Jan 1, 2007 at 07:37 AM.
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Old Dec 31, 2006 | 10:50 PM
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Chad,

email sent

Thanks,

Bill
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Old Jan 1, 2007 | 07:37 AM
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Received the email and made some adjustments. Emailed it back.
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Old Jan 2, 2007 | 06:59 AM
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Chad,

What you did made a world of difference, I made some more changes and sent it back to you last night, let me know what you think.

Bill
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Chad knows what he's doing PLUS he's great to work with.
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