205 Ecu Conversion

Talk EMS and Computer related performance

Postby Corey » Thu Jun 26, 2008 9:43 pm

Im very interested in getting a PFC.

My friend got one for his FD, and its amazing.

Does the MR2 PFC work with a '90 celica? 2nd rev engine
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Postby Toxygene » Thu Jun 26, 2008 10:42 pm

Corey Darling wrote:Im very interested in getting a PFC.

My friend got one for his FD, and its amazing.

Does the MR2 PFC work with a '90 celica? 2nd rev engine


What do you like about it? I've heard good things on NewCelica.org as well but no specifics.
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Postby Corey » Thu Jun 26, 2008 11:01 pm

I've yet to see it in action actually. He just installed it a couple hours ago and called me about it.

His idle immediately improved, it displays coolant temp, air temp, controls boost, displays rpm (great for checking compression)

All kinds of cool stuff :)

EDIT: we just went for a drive. It also shows Knock response, ignition timing angle, revlimiters....
Last edited by Corey on Sat Jun 28, 2008 1:34 am, edited 1 time in total.
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Postby Gary ST165 » Fri Jun 27, 2008 4:11 pm

Corey Darling wrote:Im very interested in getting a PFC.

My friend got one for his FD, and its amazing.

Does the MR2 PFC work with a '90 celica? 2nd rev engine



SW20 Revision 3 Power FC can be made to work with any 3sgte. remove AFM and adapt to a MAP sensor system. it requires adaptor harness / repining and some rev3 sensors, or use aftermarket sensors and configure using the FC-datalogit.


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or there are the very rare AP engineering / D-Jetro versions of the Power FC for the SW20 revision 1 and revision 2 which is near as damn it plug n play on the respective early and late spec ST185. NB, they were sold with an optional MAP sensor harness kit to eliminate the AFM.

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Postby Corey » Sat Jun 28, 2008 1:32 am

Great info :) thanks
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Postby tubasteve » Sat Sep 27, 2008 5:00 am

is this post still alive? meaning, is this ecu swap been done on a 185? i have two options, 185 cs computer or cs 205 ecu...? what should i do, i hate flapper doors, just an fyi
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Postby Meurz » Sat Sep 27, 2008 12:17 pm

tubasteve wrote:185 cs computer or cs 205 ecu...?

What? :shrug:
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Postby tubasteve » Sat Sep 27, 2008 7:04 pm

i just got two ecu off somepeople, i got the 89661-2b310 ecu(rc ecu) and the st205 ecu, i want to do this swap of no maf, can someone give me some light into this? or is there another site for this?
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Postby Corey » Sat Dec 20, 2008 7:25 pm

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Re: 205 Ecu Conversion

Postby BriinumsBo » Thu Jul 29, 2010 8:32 am

Gary, i have a PowerFC converted from SW20 to ST185 by Brash-Boy. i have just ecu and hand commander. do i need to add map sensor and intake temp sensor or is it compatible with AFM? i have 1990 st185, and the engine wont fire, i thought maybe the PFC is for 92-93, but now i wonder maybe its the MAP sensor im missing :/
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Re: 205 Ecu Conversion

Postby ohkay » Wed Mar 05, 2014 4:46 am

I'm about to do this conversion. just waiting on the injectors now.
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Re: 205 Ecu Conversion

Postby ohkay » Thu Mar 13, 2014 3:44 am

This goes out to people who may know. I did the conversion 2-3 gen. Used all the sensors everyone says using a berk jumper harness. The car turns on, idles for 30 seconds and then dies. Can't rev it. Any one have any tidbits they can throw my way?
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Re: 205 Ecu Conversion

Postby soarer.jzz30 » Thu Mar 13, 2014 5:17 am

Check injector pigtail with noid light.
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Re: 205 Ecu Conversion

Postby ohkay » Thu Mar 13, 2014 3:01 pm

Ok, fuel pump not working. I had to jump it and it ran fine.
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Re: 205 Ecu Conversion

Postby phattyduck » Thu Mar 13, 2014 4:25 pm

ohkay wrote:Ok, fuel pump not working. I had to jump it and it ran fine.
Is your fuel pump resistor plugged in and working? The ST205 ECU runs the pump at full speed for a short time after startup then it will power the pump through the resistor at low speeds/idle...

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