Accel enrichment triggers on tpsdot decline?

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kristian
Helpful MS/Extra'er
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Location: Visby, Sweden

Accel enrichment triggers on tpsdot decline?

Post by kristian »

I've seen the "TPS Accel" indicator in TunerStudio "flicker" now and then. Today I did a quick log showing clearly that my tps accel enrichment triggers more than once on each throttle stab. I would think it shouldn't enrich after tpsdot peak but I'm just guessing. Is it supposed to behave like this?

Note: My tune is in no way ready to be used with the more complicated accel enrichment options so for now I'm sticking to the simple time-based accel.

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Marek
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Location: Guildford UK

Re: Accel enrichment triggers on tpsdot decline?

Post by Marek »

Dear Kristian,

The graph where you set this has an x axis which is something like "tpsdot per second", so you can think of it as a cumulative amount rather than reading a headline number as measured by a peak, i.e. look at the total area under the graph. Just because tpsdot is no longer increasing doesn't mean that it still isn't positive, so the total amount of enrichment being called for is still going up, just not at as fast a rate as initially.

Also remember that logs often have a sampling rate and there may points on the curves which are simply missed.

kind regards
Marek
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