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View Full Version : LF: Gen 3 st205 jdm ECU + map sensor + gen 3 ignition coil



belanger33
09-20-2011, 02:13 AM
Hi, as the title describes it i am looking to get rid of my gen 2 MAF sensor by converting it to a gen 3 MAP sensor. therefore i am looking for the three following pieces:
-Gen 3 ST205 jdm ECU
-Gen 3 map sensor
-Gen 3 igniter

Thank you,
Mathieu

vip09
09-20-2011, 02:34 AM
I know someone who has all this. It might be a gen3 MR2 ecu though.

belanger33
09-20-2011, 04:17 PM
Will the MR2 Gen3 ecu cause any issue or error codes with a celica?

Tecker184
09-20-2011, 05:58 PM
mr2oc is a good place to start looking.

Luni
09-20-2011, 06:56 PM
in my opinion, youre better off running a Gen3 SW20 ECU if youre converting (unless you have full on ST205 swap with EVERYTHING else you need).

lalojamesliz
09-20-2011, 11:51 PM
well for me the gen3 st205 ecu has a smoother powerband but it throws that anoying CEL for the CC pump and level sensor and the sw20 ecu does not. you can make that relay harness but it doesnt always work like on my car :(

belanger33
09-22-2011, 02:35 AM
so if i understand, either a st205 ecu or sw20 doesnt change anything if i want to convert it into my st185? Will i get error codes? I have the RC model.

alltracman78
09-28-2011, 08:45 PM
On paper the ST205 [255] has 10 more hp than the SW20 [245]. So to me, I'd rather have the free extra 10 HP.
But you do have to build [an easy] circuit to get rid of code 54.


well for me the gen3 st205 ecu has a smoother powerband but it throws that anoying CEL for the CC pump and level sensor and the sw20 ecu does not. you can make that relay harness but it doesnt always work like on my car :(
Are you sure you built the circuit correctly?
I'm guessing a lot of times the problems with getting rid of the code are with people not building them right.

lalojamesliz
09-28-2011, 10:07 PM
yes i followed this. i found it on alltrac.net when i bought my resistors i wasnt sure to get a 1/4 watt or 1/2 watt so i bought both. i dont remember what resistor i used but i never got around to switch it out. mabey its just that huh
http://i953.photobucket.com/albums/ae12/lalojamesliz/2011-09-28135911.jpg

alltracman78
09-28-2011, 10:52 PM
And you never grounded the LEV pin, right?

belanger33
09-30-2011, 02:31 PM
back to the topic....Does anyone have a Gen3 ECU+map sensor+ignitor....?

vip09
10-01-2011, 12:32 AM
I believe my friend sent you an email. He has what you need.

belanger33
10-01-2011, 01:49 AM
Yes your friend wrote to me, thanks again!

belanger33
10-12-2011, 12:03 AM
anyone willing to sell an 3rd gen ECU????