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Post Info TOPIC: 13800-58B00 MAF characterisation


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13800-58B00 MAF characterisation

Thank you for sharing, and nice photo of the work bench, thank you again.. :)

-- Edited by pancho on Tuesday 28th of June 2016 02:25:05 AM



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I've been working on a 58B90 16V Track/Kick ECU so I took the opportunity to pull the MAF data from the ECU.

 58B00 MAF test set up

I've seen a dependency on RPM and VE on the value both on the bench and in the code and that was apparent when a full test was performed. Note that there is also a compensation for intake air temperature, these results were taken with IAT = 45C.

58B00 MAF voltage airflow curve

 The ECU applies a 'credibility check' to the data and during the driving cycle limits the maximum value based on a maximum value of VE, this isn't applied at idle, so the actual data can be recorded and graphed:



58B00 MAF airflow curve


1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.

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