NEVERSTOP isn't home yet from his trip out west, otherwise I'd ask him...

Since I've bought his motor, I need an MAF sensor meter. The motor is an ST205 block with an ST185 top end conversion...so would I need an MAF from an ST205 or ST185? Or is there a difference?

-Yota+Mar 30, 2005 - 8:25 PM
Depends on the ECU you plan on running. If ST185, then you'll need the AFM (AFM and MAF are somewhat different)... if ST205, then you won't need it.

How can I tell which ecu I'm using? I think its an ST185, but I'm not for certain on that... >>

i'd say look for the AFM plug. Its a wide plug.

-Supersprynt+Apr 1, 2005 - 5:34 PM


Problem is, I just bought an AFM off of ebay...I'm not sure if NEVERSTOP forgot to give me one or not, so since I saw one on ebay, I decided to pick it up incase I need it...

Is there anyway to tell by the number sequences on the ecu to determine which model of the 3S its used for?

From everything I've seen the second gen 3S ECU has a red label and the third gen has a black label. By no means am I an expert but that is just what I've observed over the years. You might call a dealership and give them the part number if you're still not sure.

-WannabeGT4+Apr 2, 2005 - 3:15 PM
That is also the case (or a similar one at least) with the 20V 4AGE's... the silvertop with AFM has orange lettering and the Blacktop MAP one has black lettering... Not the best way to tell... but yeah...