MR2 Owners Club Message Board™ - Sticky: Gen3 vs Gen2 wiring by Pat Signorino

April 11th, 2005, 22:18	#1
JDMsw20 Black Serpent Join Date: Mar 2004 Location: Brooklyn in da house Trader Rating: (23) Posts: 898	Sticky: 3sgte ECU Pin Outs This definitely needs to be a sticky ! GEN3 3S-GTE PLUG ID BA-1/EA-3(Engine Relay/Fuse Box 18 pin) Loc. ID Color ’91 Gen2 18-1 TC on check connector White Same 18-2 TS on check connector Yellow Same 18-3 Intake Manifold Ground Wht/Blk Same 18-4 Alternator L Terminal Yellow Same 18-5 Igniter Black Same 18-6 Water Temp Sensor Yel/Grn Same 18-7 Oil Pressure Switch Yel/Blk Same 18-8 Ignition Switch Red Same 18-9 Not Used Brn/Blk A/C VSV 18-10 Not Used Yel/Blu A/C VSV 18-11 Not Used Red Oil Level Sensor 18-12 Not Used Red/Yel AB on Check Connector 18-13 Back-Up Light Switch Red/Blk Same 18-14 Air box Temp Sensor Brown Not Used 18-15 Not Used Not Used 18-16 A/C Magnetic Clutch Blk/Wht Same 18-17 Alternator S Terminal Wht/Red Same 18-18 Not Used- Pink Cruise Control ECU Need to connect to 16-12 on engine ECU for gen3 AB-1/EA-1(Trunk Body Harness 15 pin) Loc. ID Color ‘91 Gen2 16-1 Tranny Speed Signal Brn Not Used (Mech. Speedo) 16-2 Not Used Grn/Red Circuit Opening Rly to ECU 26-17 Need to connect wire from gen2 to engine ECU 22-14 for gen3 16-3 Eng Comp Temp Sensor Blu/Org Same/To Cooling Fan ECU #6 16-4 Eng Comp Temp Sensor Blue Same/To Cooling Fan ECU #5 16-5 Dash Warning Light Blu/Yel Same/To Cooling Fan ECU #2 16-6 Not Used Not Used 16-7 Not Used Wht/Blk Starter Relay #3 16-8 Engine Hood Switch Red/Grn Same (TDS) 16-9 Cat EGT Pink Not Used Need to connect to engine ECU 22-16 for gen3 16-10 Tranny Speed Sensor Vio/Wht Same/To Cruise Control ECU 16-11 Dash Boost Gauge/PIM Blu/Blk Same/From TPS 16-12 F/P Check Connector Blu/Blk Same 16-13 F/P Relay Blu/Red Not Used Need to remove wire engine ECU 22-6 from gen2 harness and connect here for gen3 16-14 Not Used Not Used 16-15 Check Engine Light? Grn/Wht Not Used No connection Plus Pat's write up ! Gen3 vs Gen2 harness comparison http://www.mrtwo.net/mr2modproject/gen3stuff/gen3harness/gen3harness1.htm Gen3 wiring diagrams & misc info: http://www.mrtwo.net/mr2modproject/mr2modproject.htm Last edited by JDMsw20 : April 13th, 2005 at 00:41.

April 12th, 2005, 12:34	#2
GenIIIMrDuece Registered User Join Date: Jan 2005 Location: Madison,Wi Trader Rating: (0) Posts: 100	I SECOND THIS !!!

April 12th, 2005, 23:21	#3
dgblkbelt Gold Level Join Date: Mar 2004 Location: Upstate NY Trader Rating: (14) Posts: 1,014	sweeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeet. __________________ 1991 Signal Yellow MR2 Turbo. Gen III swap is back ON!! Gotta sell parts to pay for it!! FS- Gen III motor part out (block, head, manifolds, fuel rail), ported + built Gen II head, 91-92 ECU, Gen 3 ECU, Gen 3 engine and body harness, random stock parts... WTB- 3" DP, SPEC stage II or III, Gen 3 Mines ECU

April 13th, 2005, 00:06	#4
IIIGen_MR2 Gold Level Join Date: Jan 2005 Trader Rating: (0) Posts: 66	yeah that is most useful for the swap

April 13th, 2005, 09:18	#5
lowboost Registered Loser Join Date: Mar 2004 Location: Upstate, South Carolina 1/8 Mile ET: 8.600 Trader Rating: (13) Posts: 892	I could have used this months ago! Very useful information on here and Pats site!

April 16th, 2005, 19:38	#6
underdevlopment Registered User Join Date: Jul 2004 Location: Western MI Trader Rating: (1) Posts: 75	great info

April 16th, 2005, 20:19	#7
jebsleo They call me "jebs" Join Date: Feb 2004 Location: North of the US border Trader Rating: (54) Posts: 4,205	I agree this should be a sticky. Your wish is my Command. __________________

April 16th, 2005, 21:05

JDMsw20

Black Serpent

Join Date: Mar 2004

Location: Brooklyn in da house

Trader Rating: (23)

Posts: 898

Quote:

Originally Posted by jebsleo

I agree this should be a sticky. Your wish is my Command.

Thank you ! Instead of Jebs I'll call you Geanie from now on

April 18th, 2005, 01:50	#9
hostile43 Registered User Join Date: Sep 2004 Location: downey, ca Trader Rating: (1) Posts: 33	i wish i had this before i sent my car into the shop.

May 3rd, 2005, 03:26	#10
KoreanJoey Registered User Join Date: Jun 2004 Location: Gig Harbor, WA Trader Rating: (0) Posts: 25	can't the forum get in trouble for this?

May 3rd, 2005, 07:59	#11
lowboost Registered Loser Join Date: Mar 2004 Location: Upstate, South Carolina 1/8 Mile ET: 8.600 Trader Rating: (13) Posts: 892	cant you be any gayer? Come on Im tired of all these board rules! People take this stuff to dang serious! __________________ OWNED

May 3rd, 2005, 16:44	#12
KoreanJoey Registered User Join Date: Jun 2004 Location: Gig Harbor, WA Trader Rating: (0) Posts: 25	think about it lowboost... I mean crap man, do you want the forums shut down? sued or whatnot? don't be a moron.

May 4th, 2005, 00:27	#13
lowboost Registered Loser Join Date: Mar 2004 Location: Upstate, South Carolina 1/8 Mile ET: 8.600 Trader Rating: (13) Posts: 892	what basis do u say this is a thread where we could get sued? please enlighten me! __________________ OWNED

May 4th, 2005, 18:37	#14
KoreanJoey Registered User Join Date: Jun 2004 Location: Gig Harbor, WA Trader Rating: (0) Posts: 25	who owns the rights to the wiring diagrams? wiring diagrams are sold either by the dealer or (in my case) toysport. I don't mind people sharing the diagrams (I do it myself) but posting it on a public forum is (in my view) a bad idea. and who the hell are you to attack me personally? I had a concern and asked a question. chill out.

May 4th, 2005, 18:46	#15
Tyler H My other car is a Cessna Join Date: Mar 2004 Location: Knoxville, TN Trader Rating: (7) Posts: 748

May 4th, 2005, 21:46	#16
lowboost Registered Loser Join Date: Mar 2004 Location: Upstate, South Carolina 1/8 Mile ET: 8.600 Trader Rating: (13) Posts: 892	Your a _______, this board is used for us to SHARE information! if you have a problem go join another board. I wont attack you personally unless you give me an open door! PLUS MOD's know the rules, and they know all the rules __________________ OWNED Last edited by lowboost : May 4th, 2005 at 21:51.

May 4th, 2005, 21:51	#17
Chrisv006 Insert Title Here Join Date: Apr 2004 Location: Charlotte Trader Rating: (4) Posts: 331	Wow...I think its a great idea...I know of tons of people who go through HELL trying to figure that diagram out. I dont think anyone Owns the diagram...If anyone does, Toyota does. Why would anyone sue? I dont see how anyone would be mad about a diagram "leaking" onto a forum, Im suprised it took so long. Theres no water mark, someone could have make it them selfs. Im saving this to my HD and my backup CD right now just incase its gone, so I can put it on my site or share it with anyone who needs it... -Chris

May 4th, 2005, 21:56

#18

mister3

SPEC PIMP!!

Join Date: Mar 2004

Location: chicoraceworks.com

Trader Rating: (108)

Posts: 3,189

Quote:

Originally Posted by KoreanJoey

who owns the rights to the wiring diagrams? wiring diagrams are sold either by the dealer or (in my case) toysport. I don't mind people sharing the diagrams (I do it myself) but posting it on a public forum is (in my view) a bad idea. and who the hell are you to attack me personally? I had a concern and asked a question. chill out.

AFAIK toysport is not the dealer or division of toyota or TRD... just some guys who own a shop that resells OEM diagrams you could get at the local Public Library for free.......... or off MR2oc for free ... or somewhere else on the net for free......

if it was proprietary information Toyota wouldn't release or sell it to anyone for fear that it would get copied 10 different ways from sunday and posted on the net 1,000 different places........... they also wouldn't screenprint the circuit board inside the ECU with the pinout configuration (which is all that's being displayed anyways)

there are also several other companies (Alldata/chilton/haynes/etc) who have wiring diagrams for the MR2 or whatever other car is out there -- nothing secret about those.........

May 4th, 2005, 21:57	#19
GotBoost 2 STROKE WHOMPED U! Join Date: Apr 2004 Location: South Carolina Trader Rating: (0) Posts: 611	EDIT i posted and after i did i looked and seen during the time i was typing they had said exactly what i was gona say haha... so just be thankful you have the info now ... Justin Last edited by GotBoost : May 4th, 2005 at 22:01.

May 4th, 2005, 21:59	#20
lowboost Registered Loser Join Date: Mar 2004 Location: Upstate, South Carolina 1/8 Mile ET: 8.600 Trader Rating: (13) Posts: 892	exactly, thanks guys for backing me up __________________ OWNED

May 5th, 2005, 14:43	#21
KoreanJoey Registered User Join Date: Jun 2004 Location: Gig Harbor, WA Trader Rating: (0) Posts: 25	Well if you guys feel that way I have two wiring diagram available to post (4th Gen 3SGE BEAMS and 3rd Gen 3SGE) but have to get them scanned. And if you see my original post, you asshat, I was asking a question.