Re: HFS-3v2 wiring diagram Mazdaspeed 3
 

a serial number will enable me to confirm if the unit is on the latest batch of DI equipped version.

Re: HFS-3v2 wiring diagram Mazdaspeed 3
 

10324 is my s/n

Re: HFS-3v2 wiring diagram Mazdaspeed 3
 

23rd October 2010 . Manufacture date.

It will work with most DI but for the MS3, it is better to send to back to me for upgrade. No charge, just pay return shipping The last update was on November 2011.

Re: HFS-3v2 wiring diagram Mazdaspeed 3
 

sent you a message i'm hoping we can get this worked out.

Re: HFS-3v2 wiring diagram Mazdaspeed 3
 

Hi Richard,

I'm getting ready to install the control box from the hfs-3 into my 2007 mazdaspeed 3. After reading this thread can you confirm I have the correct unit for my car? I just bought this from howerton. Thanks, Rick

Serial #: 102485

Re: HFS-3v2 wiring diagram Mazdaspeed 3
 

Yes, your HFS3 will work with the MS3. Check your S/N again.