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Engine wiring diagrams

Tiny
MAHAR ALI YASIR NOOR
  • MEMBER
  • 1992 TOYOTA 4RUNNER
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
I have recently installed 3sfe 2.0 liter engine with 0371 Aisin Warner automatic transmission. I need complete wiring diagram with the wiring details of combination meter wiring diagram. Please
Thursday, January 3rd, 2019 AT 10:35 PM

11 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,296 POSTS
Hello,

Here are the engine wiring diagrams with connector view (below) with a guide to help walk you through the testing:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
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Saturday, January 5th, 2019 AT 11:56 AM
Tiny
ROB40
  • MEMBER
  • 6 POSTS
My done wiring making and not done wiring. Because I still confuse which connector pin color and block junction.
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Monday, November 4th, 2019 AT 10:12 AM
Tiny
ROB40
  • MEMBER
  • 6 POSTS
Some my wiring many spoils and I need to change new wiring. Can you help me give color code pin connector from and to every junction block back connector? My combination meter also not function good. Can you help me? Thank you
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Monday, November 4th, 2019 AT 10:17 AM
Tiny
ROB40
  • MEMBER
  • 6 POSTS
Before this I found this wiring connector connect to my seat heater. After 3 year ago then I found, I buy my own car with wrong wiring system connections direction. Then I found in front of my panel gear shift. There a correct connector with wiring, I try connect then found, when I turn on my overdrive switch then I found got yellow light on at my combination meter.
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Monday, November 4th, 2019 AT 10:25 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,296 POSTS
Anything is working okay but the yellow light? Can I ask which light is it a picture would be great.
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Monday, November 4th, 2019 AT 12:19 PM
Tiny
FROCKOS
  • MEMBER
  • 3 POSTS
  • 1991 TOYOTA 4RUNNER
  • 252,000 MILES
ECU ground has 1.26v on ground circuit
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Wednesday, May 26th, 2021 AT 7:08 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Voltage drop in ground circuit indicates resistence in ground remove clean retest. Should be three Brown wires connected to body
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Wednesday, May 26th, 2021 AT 7:08 PM (Merged)
Tiny
FROCKOS
  • MEMBER
  • 3 POSTS
I failed emmissions test. The state machanic looked at it and said: the coolant and oxygen sensor voltages Erratic, check of E1(ground shows 1.26v on ground circuit), ground circuit problem, found high voltage on ground side, vehicle not going into closed loop operation, suggest repairs to ground side of ecu circuit. How can I fix this?
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Wednesday, May 26th, 2021 AT 7:08 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Remove right kick panel look at ECU ground wires should be on that A pillar
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Wednesday, May 26th, 2021 AT 7:08 PM (Merged)
Tiny
FROCKOS
  • MEMBER
  • 3 POSTS
Im not seeing where they ground to the 4runner. Here is a few pics of the ecu and where im looking. But I dont see anything going to the frame.
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Wednesday, May 26th, 2021 AT 7:08 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
There are three connectors on ECU a 15 wire a 22 wire and a 26 wire. I pic you sent one on far right. Count over to 13 then to 26 both are grounds. Disconne ct Battery then 26 connector use OHM meter measure resistence from each to body ground. Any reading other than Zero means unwanted resistence
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Wednesday, May 26th, 2021 AT 7:08 PM (Merged)

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