Mapping on a P28 and Vehicle Speed Sensor (VSS)


MilesH

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Sep 9, 2015
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Does anyone know if the VSS signal is used when mapping on a P28 or if it is ignored/deleted?

I am currently running a gearbox without the VSS and wondered if the signal is required or if the P28 has the ability to ignore it?

Thanks
 


jesse888

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Isn't the vss needed for vtec to work? I'm sure my buddy had issues with the converter on his vss and vtec wouldn't work.
 


MilesH

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Isn't the vss needed for vtec to work? I'm sure my buddy had issues with the converter on his vss and vtec wouldn't work.
On a standard ECU it does yes. I was wondering if it is still used on an aftermarket ECU as they can be deleted as a requirement on some.
 


MotorMo

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I know on Hondata, which piggy backed the Factory ECU, the VSS had nothing to do with VTEC engagement. It was based only on the RPM's. This was on an OBD 1 P30 ECU.
 


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I know on Hondata, which piggy backed the Factory ECU, the VSS had nothing to do with VTEC engagement. It was based only on the RPM's. This was on an OBD 1 P30 ECU.
i think there is much parameter for VTEC engagement. But yes you can disable the parameter.
-manifold pressure window
-rpm window
-mininum tps
-minimum speed
-minimum water temp.
 

Last edited:

jesse888

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As above. It's minimum speed with hondata, to disable just enter 0mph.
 



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