Thread: Understanding fuel trims
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Old Jul 23rd, 2019, 21:30   #1
SteveSarre
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Last Online: Apr 26th, 2024 22:08
Join Date: Oct 2004
Location: London/West Country
Default Understanding fuel trims
Hi all

I am trying to learn about fuel trims.

What are Bank 1 and Bank 2?
What are Upper Part Load and Lower Part Load?

Thanks
Steve
Attached Images
File Type: jpg Diagnostics fuel trims.jpg (11.2 KB, 21 views)
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V70 2.5 Turbo AWD Man. 1999 Red
V70 2.5 10V Auto 1998 Green
C70 T 20V Auto Conv. 2001 Blue, C70 T5 Auto Conv. 2000 Blue
V70 2.5 Turbo AWD Auto 1998 Green, V70 2.5 10V Auto BiFuel 1999 Red (scrapped) V70 20v Auto 1999 Green (scrapped)
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