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Efie "transitions from low-high several per..."?
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dale Offline
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Efie "transitions from low-high several per..."?
Hi

I bought an Efie from fuel-saver last week, and just got it mounted. Please, I do not understand this phase in their instructions: "The ECU must see transitions from low to high several times per second or it will "know" that the sensor is bad and then just start merrily adding gas".

So then is the Efie supposed to make said "transitions"? Because mine is holding a constant voltage?

Thx,
Dale
(This post was last modified: 07-20-2008 05:33 PM by dale.)
07-20-2008 04:32 PM
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colchiro Offline
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RE: Efie "trasnsitions from low-high several per..."?
The EFIE just adds a voltage onto the o2 sensor voltage so the output of the EFIE (which goes to the ECU), still has the same fluctuations, just at a higher voltage. I believe by "Merrily adding gas", Mike is saying "open loop".

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
07-20-2008 04:55 PM
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dale Offline
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RE: Efie "transitions from low-high several per..."?
Hi Rick:

Yes, that makes perfect sence.

Thank you sir
07-20-2008 05:35 PM
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colchiro Offline
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RE: Efie "transitions from low-high several per..."?
If you need support with your EFIE, it's best if you post in one of the EFIE groups.

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
07-20-2008 05:43 PM
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