Re: Using 806-155 instead of MAP sensor?
Sorry for the late reply.
Yes, the 806 155 can be used to activate either system but will require some circuit board modification.
A mecnhanical pressure switch is prone to aging. We have work around this problem by using the OE pressure signal.
On the HFS-3, you need to get a 5V signal internally and wire it to the switch. It will have to be "return to factory" modification.
Do you not have a map sensor on your car?
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Richard L
aquamist technical support
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