protito

Phantom, since you bring up the MP3 ECu, What would be the difference between that and a standard ES ECU??? Same question for you Matty.

Roddimus Prime

the mp3 ecu has slightly advanced timing in the upper rpms...around 5K rpms you get a slight bump...nothing much but about 3-5whp.

protito

Alright. Nothing to help the bottom end then. How much do they cost????

Roddimus Prime

depends....sometimes you can trade a turbo mp3 owner straight up...sometimes junkyards want $250....dealers want almost $900....I paid $50 for mine.

Phantom Cruiser

I don't have the MP3 ecu

Roddimus Prime

your best bet is to get in with a dealer you trust and just slip the tech $50 to re-flash your stock ecu to the mp3 maps....only catch is they have to have an mp3 ecu laying around to pick the map off of.

Phantom Cruiser

Uh huh...yeah.

Tech is like, "Oh well, we don't do anything like that unless it's a warranty problem. I'd have to call Mazda Corporation in order to get an authorization."


So...

The junkyard dog says, "Well boy-howdy, you sez you wants a 'puter fer yer car? Well what's ya's 'puter number eh little lady?"

Roddimus Prime

thats why I said get in with a tech you know and trust....i've gotten plenty of free under the table stuff this way and they hate me!

Phantom Cruiser

Why would I go to the dealership? I don't go to the dealership for anything except for the replacement owner's manual that I had to get

Apparently our dealership has one tech that works with ECU programming and he's a "by the book" sorta fella...yep, I tried.

tonkabui

soon and very soon, i'll let you guys know the difference between an ES (LX, DX, P5) ecu and an mp3 ecu. we're having a dyno day out this way in the upcoming weeks and it looks like plenty of people will be pulling.

Roddimus Prime

Truc, your best bet is to have one car make pulls with swapping out the ECu's only....no downtime, no re-calibration, no varying mods...

p.s. I can already tell you that the es/lx/dx/pd ecu is identical...only the msp and mp3 are different.

tonkabui

no no, we're just looking at the difference between the mp3 ecu vs. the p5, es, lx, dx ecu. the latter is all the same. all we're gonna do is have bill do a run with his mp3 ecu'd p5 then swap out the ecu with someone else in the club (hopefully another club member from his town) and see what happens. he also lives at 7K feet though, so unless his buddy comes down with his regular ecu'd p5, it's gonna be hard to tell if altitude has anything to do with it. i'll keep you posted. we're also going to be (hopefully) testing out beau's midpipe as well (cat vs. catless).

Roddimus Prime

good deal, sounds like a lot of dyno $$

LEADfoot

am i wrong here....i think the dyno calibrates for altitude
or 'corrects' for it i think is the term
thats what they told me on my run here in CO @ 5000+ ft

tonkabui

yeah, they do... but not for an individual car. rather, they calibrate it for altitude for where the dyno is. bill is from a place that is 7000 feet above sea level. the dyno is at 2000 feet.