what do the fuel multipliers do?
04-01-2005, 02:07 AM
#2
3.0 BAR
Join Date: Apr 2003
Posts: 2,260
Re: what do the fuel multipliers do?
1) Fuel multipliers are not "Enabled/Disabled". The option in TurboEDIT GUI is for auto-detection of fuel multipliers. Basically, so TurboEDIT will calculate these multipliers on it's own without you having to know what they are.
2) Here is the explaination I wrote on PGMFI to the same question..
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Multipliers are easy to understand..
Think of it like this, the ECU can only calculate 8-bit values 0-255 (0x00 - 0xFF).
The fuel multipliers give the ECU a way to calculate outside that value range.
For example, say we have a fuel multiplier of 0 representing no multiplier at all (in an example equation).
10 * 0 + 10 = 10
Assuming 10 is the "max" value we could use in the ECU, we add a multiplier.
10 * 1 + 10 = 20..
10 * 2 + 10 = 30..
See how the same "max value" is able to be used, but the use of a multiplier lets us get higher values?
Same goes with the fuel mutlipliers. Simply put, they allow us to use higher values in the ECU for the pulse durations.
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2) Here is the explaination I wrote on PGMFI to the same question..
--- begin cut ---
Multipliers are easy to understand..
Think of it like this, the ECU can only calculate 8-bit values 0-255 (0x00 - 0xFF).
The fuel multipliers give the ECU a way to calculate outside that value range.
For example, say we have a fuel multiplier of 0 representing no multiplier at all (in an example equation).
10 * 0 + 10 = 10
Assuming 10 is the "max" value we could use in the ECU, we add a multiplier.
10 * 1 + 10 = 20..
10 * 2 + 10 = 30..
See how the same "max value" is able to be used, but the use of a multiplier lets us get higher values?
Same goes with the fuel mutlipliers. Simply put, they allow us to use higher values in the ECU for the pulse durations.
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uberdata and crome have fuel modifiers that you can enable/disable
