OLFA table vs. Custom OS A0008 table

My custom OS does not have OLFA, it has a A0008 file. The A0008 states its a multiplier. Is this truely a multiplier or is it a divider?

Thanks,
Glenn

It is a multiplier. I'm going to assume that your display units are AFR or EQ Ratio , and that the commanded AFR is 14.63:1 (or EQ Ratio of 1.0) for the example.

- A multiplier of 1.00 the commanded AFR will be 14.63:1
- A multiplier of 1.20 the commanded AFR will be 12.19:1 (Richer)
- A multiplier of 0.80 the commanded AFR will be 18.29:1 (Leaner)

The multiplier is for enrichment (richening the mixture) and the lower the AFR numbers are richer the mixture.

Hope that makes sense.

how is 0.80*14.629=18.29 a multiplication? :) i'd call it a division

Quote:

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Originally Posted by redhardsupra

how is 0.80*14.629=18.29 a multiplication? :) i'd call it a division

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No wonder my AFRs are out of whack :beer:

All I can say is 'whatever', a higher number is more fuel. Multipliers generally give 'more', which in this case is fuel.

Either way, that's how it works.

Quote:

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Originally Posted by redhardsupra

how is 0.80*14.629=18.29 a multiplication? :) i'd call it a division

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If you look at it on EQ basis, it's a multiplier ;)

Could have sworn Lamda was the multiplier and EQ was the divisor. :nixweiss:

Quote:

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Originally Posted by Garry

If you look at it on EQ basis, it's a multiplier ;)

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This is the key.:cheers:

It multiplies the current EQ to get the target EQ; the current EQ equals 14.63 divided by current AFR.

AFR = 14.63 / EQ = 14.63 * Lambda

or

EQ = 14.63 / AFR = 1 / Lambda

EQ, Lambda, AFR are all units of how much air/fuel.

A008 is a multipler in the sense that it multiplies current EQ to give target EQ.

Like Tordne said, the higher numbers are richer.

Edit: the more I write here, the muddier it is becoming...:bash:

Okay, I am going to try what Tordne said and see what happens.

The whole multiplier/division thing confuses me; however, I understand what is being stated!

I will let you know how it goes.

Thanks for all of the help!

GLenn

Quote:

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Originally Posted by redhardsupra

how is 0.80*14.629=18.29 a multiplication? :) i'd call it a division

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Thats what i am trying to wrap my head around...lol. My commanded AFR is 14.70:1 and my multiplier (for a specific cell) is 1.0229. 14.70 x 1.0229 = 15.036 which equals a leaner AFR. So regardless of the table description of "multiplier", if i put a number larger than 1.00 in there, thats going to equal more fuel right?