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Hey guys i was just wondering where the ECU is located on a 92-94 protoge. Also if i am putting it in my mx do i need a manual transmission protoge ECU for my manual mx, or does the tranny matter??

the ECU is located under the radio/ashtray, on the floor by the firewall.

Best to get the MTX ECU.

are you using the ecu from an LX or an SOHC?

if i were you i would get the MAF too more air flow, its not needed. but i would get the 2nd Gen N/A RX7 MAF (VAF). its alot bigger, alot better airflow, a few more ponies

I hope to be using the lx model ECU my engine is a DOHC so im sure they would work better together. To be honest i hadnt even thought of a SOHC ECU.

Yea the airflow meter is a Vane type ive looked into this already.

Timmie_g wrote:I hope to be using the lx model ECU my engine is a DOHC so im sure they would work better together. To be honest i hadnt even thought of a SOHC ECU.

Yea the airflow meter is a Vane type ive looked into this already.

If u are going to use a 90-94 protege LX ecu on a 94+dohc mx-3 it will not work.

Well i heard of people using BP ECU's to raise redline and also to et a slight increase in hp. That is why i am trying to do it as well, which ECU will i need to use to accomplish this or is there such a thing??

I forgot to let everyone know that mine is a 95 1.6L DOHC MTX

i thought you were swapping in a BP engine... i'm guessing the 95+ MX models have OBD2...might try a 95 Protege BP ECU. Although they are kinda hard to find with the BP engines.

Protege SOHC ECUs can be used, but ya have to tweek the harness and add a few wires.

I'm not all that familiar with the characteristics of the 1.6 engine, so this may or may not work. But atleast it's something to look into.

Timmie_g wrote:Well i heard of people using BP ECU's to raise redline and also to et a slight increase in hp. That is why i am trying to do it as well, which ECU will i need to use to accomplish this or is there such a thing??

Thats why i said what i said that works on the 92-93 sohc mx-3 using a 90-94 pro lx ecu will work on these model type's

IT will wot work on the 94+ dohc mx-3 models why the

Years ago i but a 94+ ecu in my 93 sohc it turn on but ran like s--- and vice versa i all put a 93 pro lx ecu in my 93 sohc and it ran fiine no issues i put the same ecu in the 94 mx-3 and car did't even start.


there was a post where the guy mod. the 94+ecu and rasied the rev limit. serch around. i found it so i know u can to laters i can't do all the work for u good luck

http://www.mx-3.com/phpbb2/viewtopic.ph ... limit++mx3

here tought i be nice to u laters

Limegreen MX-3

man you're my hero thank you so much, i came across that thread once before but i couldnt remember where. You're a life saver.