MP3 ECU Find

[03protege5]

Not to rub it in at all, but I stumbled across an Mazda MP3 ecu at a junk yard. I called the shop and had them verify the part number to make sure it’s what I needed and it sure was

160$ later and it’s installed and let me say it’s worth it to find one or tune stock to match. It feels like a different car, not huge differences but immediately noticeable across the board

I’ve only had it in for about 150 miles so it’s still “adjusting” but I just changed my MAF sensor so I think I need to disconnect my battery for that and fill up with some premium gas

All in all if you can find one I def suggest pulling the trigger. I used car parts online to search salvage yards and luckily one pulled up. You can search by the model number needed so FS9N 18881, B and C if I’m not mistaken

 

[katapaltes]

I got my MP3 ECU from car-part.com. Worth it for me, but you may have to run higher-octane gas to avoid pinging.

 

[03protege5]

I got my MP3 ECU from car-part.com. Worth it for me, but you may have to run higher-octane gas to avoid pinging.

Same here. I have 93 in it now but think I have a clogged cat or getting clogged so I may be switching to high flows. My car burns a bit of oil

 

[TX_SilverP5]

This might be useful to someone: FSAR-18881 | 2002 Mazda Protégé 5 2.0L PCM Engine Computer ECM ECU Programmed & Updated | MAZ-403

But that one is the specific ECU for my car. Here's the ones they do for 2003: Mazda PCM | ECU | ECM

 

[njaremka]

To benefit the engine better, pull the VTCS flaps (NOT the VICS flaps) from the intake manifold.

 

[03protege5]

To benefit the engine better, pull the VTCS flaps (NOT the VICS flaps) from the intake manifold.

I’ve heard this helps but seems like quite the job unless I’m not understanding it well

 

[njaremka]

It's not that bad. When I did it, I pulled the intake manifold, and I think I just removed the flaps. I might have left the shaft in the manifold to keep the ports plugged. If you remove the shaft, you'll just need to plug the port where the shaft comes through.