What is this, and should it be plugged in?
#21
No, the water temp sensor is in the front of the intake manifold, a little bit in front of the thermostat housing.
I still havent found a plug, and personally, I don't think this vehicle has that knock sensor. I think the motor was swapped out before I bought it with a 4wd block, possibly. Although, it is weird that my 88 2WD does have it. I gave up, and said forget it, unless somebody can PROMISE me FOR SURE that this motor has a knock sensor.
The only thing left for me to check are the pins on the ECU, to see if there is a pin for a knock sensor. If there is no pin, then the ECU isn't set up for the knock sensor. I went to look up the pins in the factory manual online, and for this 2WD, there is no pin number or location on any of the connectors.
I still havent found a plug, and personally, I don't think this vehicle has that knock sensor. I think the motor was swapped out before I bought it with a 4wd block, possibly. Although, it is weird that my 88 2WD does have it. I gave up, and said forget it, unless somebody can PROMISE me FOR SURE that this motor has a knock sensor.
The only thing left for me to check are the pins on the ECU, to see if there is a pin for a knock sensor. If there is no pin, then the ECU isn't set up for the knock sensor. I went to look up the pins in the factory manual online, and for this 2WD, there is no pin number or location on any of the connectors.
Last edited by Erik Beeman; Aug 12, 2009 at 07:18 PM.
#22
I don't see that it would matter between 2wd and 4wd 
the running of the motor has nothing to do with weather or not there's a front diff under the motor, for the most part...
2wd or 4wd, it's still capable of knocking from pre-ignition

the running of the motor has nothing to do with weather or not there's a front diff under the motor, for the most part...
2wd or 4wd, it's still capable of knocking from pre-ignition
Last edited by iamsuperbleeder; Aug 12, 2009 at 06:54 PM.
#23
Ok then, why does Toyota's factory manual say "Knock Sensor (4WD Only)"?? Still don't know if mine has it or not. I need to check the ECU to see if it has the knock sensor pin, but I can't even find the ECU diagram of pins...doh
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Blamalam
86-95 Trucks & 4Runners
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Mar 12, 2022 07:34 AM





if only everyone was so determined 

