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2008 Mazda M3
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hybridman7 Offline

Posts: 1
Joined: Jan 2009
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Post: #1
2008 Mazda M3
Looks like I have a Wide Band EFIE on this install-it's a 4-wire sensor (there are 2 sensors upstream of converters- haven't checked the second one yet).

Measuring voltage shows 1- 12.7 V (13.9V running)
1 - 0 V (ground)
1- 2.4 V fixed (doesn't seem to fluctuate even when warmed up and running)
1- 2.7 V fixed (it also does not appear to fluctuate)

From your instructions I assume these last 2 are the current pump wires? If I buy your wide band efie, I would hook up the 2.7 volt signal wire to either blue or white - is this correct?

HHO Kits
01-25-2009 05:29 PM
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colchiro Offline

Posts: 3,265
Joined: Feb 2008
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Post: #2
RE: 2008 Mazda M3
Hi Bob.

Yes, the 12 v and ground are your heater wires and the 2 volt wires are your pump wires.

Your efie will connect to the 2.7 volt wire (since we want the higher of the two pump wires), using blue or white.

Sounds like you got it all figured out.


Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
01-25-2009 05:55 PM
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