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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Procede Valet mode Air/Fuel Ratio



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      06-01-2010, 05:12 PM   #1
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Procede Valet mode Air/Fuel Ratio

Is the Procede in Valet mode AFR the same as stock or does it get richer as in map1 and map2?
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      06-01-2010, 06:02 PM   #2
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Quote:
Originally Posted by AltecBX View Post
Is the Procede in Valet mode AFR the same as stock or does it get richer as in map1 and map2?
AFAIK the fuel offsets are global...
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      06-01-2010, 10:56 PM   #3
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Quote:
Originally Posted by mwahlert View Post
AFAIK the fuel offsets are global...
Even in valet?
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      06-01-2010, 11:58 PM   #4
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In valet, AFR targets are stock up to 6psi. And slightly richer than stock above that. Just to keep fuel trims reasonable consistent between map changes from valet to performance maps and back.

Shiv
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      06-12-2010, 10:15 AM   #5
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A question for the "US guys"...
... could some of you be kind enough to post your AFR figures?

I'm having a "10,2" in full boost and I wonder, given the differation of the fuels you are using ...what are your AFRs

The above feels pretty rich to me ,in such a manner that could sacrifice a bit power...what you'd think?
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      06-12-2010, 10:38 AM   #6
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Quote:
Originally Posted by Panoz View Post
A question for the "US guys"...
... could some of you be kind enough to post your AFR figures?

I'm having a "10,2" in full boost and I wonder, given the differation of the fuels you are using ...what are your AFRs

The above feels pretty rich to me ,in such a manner that could sacrifice a bit power...what you'd think?
I am also logging 10:2 also but what Shiv has stated that its not an accurate log and the new update with the Can Wideband should make A/F ratio readings pretty spot on...Just wait for the next update of User software, maps and firmware
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      06-12-2010, 11:14 AM   #7
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Quote:
Originally Posted by cn555ic View Post
I am also logging 10:2 also but what Shiv has stated that its not an accurate log and the new update with the Can Wideband should make A/F ratio readings pretty spot on...Just wait for the next update of User software, maps and firmware
+1
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