BinaryRotary
Member
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- 03 MSP, 85 RX-7 GS, 90 RX-7 TII
Okay according to popular theory, we now should be able to purchase aftermarket AFC's and have them work on the Mazdaspeed.
BE IT KNOWN. This has not been proven on any other AFC, other than the Greddy Emanage. The basic installation should be the same for most AFC's. This information was provided by Orangezoom (big thanks) and Teknik (thanks for the info). MP3skaterNC also provided some information into the 1k ohm resistor used.
In order to get the Emanage or any other AFC to work on the Mazdaspeed we need to trick the ECU. This is done by installing an o2 Modifier/o2 voltage clamp and a 1k ohm resistor.
The FM o2 modifier/voltage clamp can be purchased from http://flyinmiata.com/index.php?action=product&itemid=85501 . This unit also contains a pressure sensor WHICH IS REQUIRED so the ECU can see a false of the current A/F value.
Instructions for install can be found here :
http://www.gvii.net/dlralt/protege/instructions/Protege_O2_pressure_switch.pdf
The next thing to to is to wire a 1k ohm resistor INLINE with the MAF wire, PIN 88 on the ECU and an ECU ground. Theortically, this stabilizes the voltage that the MAF is sending to the ECU thereby allowing the unit to see a 0-5v range.
A 1 k ohm resistor is SUPPLIED with the Emanage or can be bought from any radioshack for 1.29 . At the moment, I have not figured out what wattage resitor to use, so the one supplied with the Emanage is the only one that is know to work.
After this is done .... HAPPY TUNING.
Any more information please write below and I will compile the information.
BE IT KNOWN. This has not been proven on any other AFC, other than the Greddy Emanage. The basic installation should be the same for most AFC's. This information was provided by Orangezoom (big thanks) and Teknik (thanks for the info). MP3skaterNC also provided some information into the 1k ohm resistor used.
In order to get the Emanage or any other AFC to work on the Mazdaspeed we need to trick the ECU. This is done by installing an o2 Modifier/o2 voltage clamp and a 1k ohm resistor.
The FM o2 modifier/voltage clamp can be purchased from http://flyinmiata.com/index.php?action=product&itemid=85501 . This unit also contains a pressure sensor WHICH IS REQUIRED so the ECU can see a false of the current A/F value.
Instructions for install can be found here :
http://www.gvii.net/dlralt/protege/instructions/Protege_O2_pressure_switch.pdf
The next thing to to is to wire a 1k ohm resistor INLINE with the MAF wire, PIN 88 on the ECU and an ECU ground. Theortically, this stabilizes the voltage that the MAF is sending to the ECU thereby allowing the unit to see a 0-5v range.
A 1 k ohm resistor is SUPPLIED with the Emanage or can be bought from any radioshack for 1.29 . At the moment, I have not figured out what wattage resitor to use, so the one supplied with the Emanage is the only one that is know to work.
After this is done .... HAPPY TUNING.
Any more information please write below and I will compile the information.
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