I'm toward the end of the months' long saga of replacing my 5vz. Installation of the new engine is next weekend, and I've discovered that a connector was pulled off of a wire. Connector is circled in the lower right corner of the image. Could someone please help me identify where this goes so I can order a replacement?
Hm. I'm not able to get any hits for 5vz "ecu temperature sensor". Everything I find points to the coolant temp sensor. Would they use the same type of connector? If so, my real issue is solved.
Hm. I'm not able to get any hits for 5vz "ecu temperature sensor". Everything I find points to the coolant temp sensor. Would they use the same type of connector? If so, my real issue is solved.
There are two coolant sensors. One goes to the ECU. The other goes to the temp gauge. Plus one on the transmission (slush box only).
[Incorrect info deleted. See newer post downthread.]
Please, ALWAYS give your year, engine, and 4WD/RWD and auto/5SP when requesting wiring help. Without that, anything I give you could be wrong. A close-up of the end of the subject plug would also have been real helpful.
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'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil) My Backyard Frame Swap
The ECT/ECU Temperature Sensor naming difference was throwing me off. But it does sound like we are talking about the same thing.
You're right, I neglected to provide those details. 99 5VZ 4wd 5sp. I'll remember for next time.
Unfortunately, it's the end of the plug that was ripped off and I'm trying to repair. I can't find the original, (lost amidst other components, I suspect) so I'm hoping that the photo of a stock harness would provide enough context.
Now I feel the need to chime in. The ECU coolant temp sensor comes off the passenger side of the harness. What the OP has circled is the driver side of the harness. Based off my examination, that plug that is circled goes to the front differential actuator.
__________________ "My old man is a television repairman, he's got this ultimate set of tools. I can fix it!"
Now I feel the need to chime in. The ECU coolant temp sensor comes off the passenger side of the harness. What the OP has circled is the driver side of the harness. Based off my examination, that plug that is circled goes to the front differential actuator.
That looks right. Very easy to miss when pulling a motor since it is so far down there.
edit to clarify: That is for the ADD position switch, not the the ADD VSVs that are up on the inner fender.
-Charlie
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'99 4Runner SR5 Auto - 4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
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That looks right. Very easy to miss when pulling a motor since it is so far down there.
edit to clarify: That is for the ADD position switch, not the the ADD VSVs that are up on the inner fender.
-Charlie
Yep, that plug is very easy to miss.
When I looked at the comments to the OPs question, I was like HUH? The ECT (Engine Coolant Temp) sensor plug comes off the harness on the passenger side and the plug the Op circled is clearly on the driver side all by itself. On the passenger side, the Knock Sensor plug and the ECT plugs are right next to each other.
__________________ "My old man is a television repairman, he's got this ultimate set of tools. I can fix it!"
I see references to "T" tab and Split tab variants of this connector. Does anyone know whether there is a universal connector available for this repair?
I see references to "T" tab and Split tab variants of this connector. Does anyone know whether there is a universal connector available for this repair?
There's a small sub harness between the position switch on the ADD actuator (on the tube coming off the front diff towards the passenger side). You just need to repair that sub harness. Do it while the motor is out, otherwise access is very difficult.
I had damage in that same area on the parts truck that I got all my 4WD swap parts from (damaged by previous owner who took the engine - I wanted the rest of the truck for the 4WD parts...).
-Charlie
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'99 4Runner SR5 Auto - 4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
Previous: '88 Camry Alltrac LE 3S-GE BEAMS, 90 Camry 3S-GTE, 90 Camry DX, '03 WRX wagon, '08 Outback XT
Unfortunately, I don't have any closer photos, or from a different angle. The challenge I'm faced with is that the connector was pulled from the wire and I'm unable to find where it ended up. So I have no direct comparison to find a matching replacement part. If I had that part, I'd probably just relieve the pins and pull them out, then re-terminate the cables and reuse the connector.
Start watching this video at play time 26:25 to see how to access that wiring haness on the top of the differential that got damaged. You just have to disconnect the breather hose from the driver side fender well, disconnect the two vacuum lines at the switching valves on the driver side fender, disconnect the electrical connector at the ADD actuator and then take out the two bolts.
__________________ "My old man is a television repairman, he's got this ultimate set of tools. I can fix it!"
Yup I was wrong. It's the front fender that Charlie clarified. I thought the ecu coolant came off the passenger side of the injector harness not drivers.
That definitely needs corrected on the on this thread.
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Huh? What do you mean it's the front fender that Charlie clarified? Maybe you missed my comment. I identified for the OP that the damaged connector goes to the ADD actuator on the front differential. Charlie confirmed what I said. What Charlie said is it's NOT one of the connectors for the vacuum switching valves on the driver side fender well.
The ECU coolant temp sensor DOES come off the passenger side of the engine wiring harness, not the driver side.
Dude, what have you been smoking? Let me know because I'd like some so I could do some hallucinating as well.
__________________ "My old man is a television repairman, he's got this ultimate set of tools. I can fix it!"
Unfortunately, I don't have any closer photos, or from a different angle. The challenge I'm faced with is that the connector was pulled from the wire and I'm unable to find where it ended up. So I have no direct comparison to find a matching replacement part. If I had that part, I'd probably just relieve the pins and pull them out, then re-terminate the cables and reuse the connector.
I think caused confusion with the photo link. The photo isn't of my specific harness, it's just an example photo for illustrative purposes. My wires aren't cut after the connector joint as in the photo. The connectors were disconnected during removal prep, and the part of the connector that was on the harness side is what was pulled off the wire. So one half of the connector is still on the car, and the other is missing.
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