tpsDot and accel enrichment

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nzgrub
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tpsDot and accel enrichment

Post by nzgrub »

Could someone please check out my log and tune and give me some idea why I get random tpsDot Accel enrichment, like at...
45.352sec tpsDot = 10.4
68.03 sec tpsDot = 0.0
68.953sec tpsDot =0.0
and there are more, I have the tpsDot threshold set at 28, I thought that meant no accel enrichment till tpsDot more than 28
2017-06-23_18.56.26.msq
2017-06-23_18.46.02.msl
2swe
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Re: tpsDot and accel enrichment

Post by 2swe »

nzgrub wrote: I have the tpsDot threshold set at 28, I thought that meant no accel enrichment till tpsDot more than 28

yes, you are right.
but your datalog only contains 5 records per second, so new data are stored every 0.2 second, but code "looks" at the TPSdot before every injection event, at 3400 rpm crank rotates 11 times in those 0.2 seconds...
1978 vw golf gti 16v itb cop full sequential MS2
1992 vw corrado 16v moonlight blue MS2
nzgrub
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Re: tpsDot and accel enrichment

Post by nzgrub »

Ok then, how do I find out what the tpsDot spikes are that are triggering the accel enrich then, or do I just do it by trial and error, slowly increasing the threshold till they are gone.
whittlebeast
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Re: tpsDot and accel enrichment

Post by whittlebeast »

You have about 10 times as much AE as you need. It is driven by that curve.

Andy
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