oil pressure harness differences

[bigredmachine]

so last year my oil pressure gauge was intermittently inop and since it was starting to look like swiss cheese i got a new one and gauge was working just fine. over the summer i had to replace the thermostat and did the hoses as well and while doing that i must have broken a wire internally in the oil pressure wire harness. did a continuity check and found an open in the harness. the harness is nla from toyota so i was able to get a used one but its for a 95-97 and i have a 94.

so what is the difference with the harnesses and are they interchangeable? i looked up the ewd for different years and theres no difference on the ewd. i know that their different part numbers but will one work with the other?

 

[Red Merle]

Does the 95-97 unit fit on the '94? I just had someone make me a new harness for my '94 and I know he said there was a connector midline that was a radio interference regulator(or something that reduces radio interference from the motor, not sure exactly what it is called). It also had a separate plug that went on the top of the AC compressor and then the two that clip to the oil pressure switch. As long as all of that is there, I am not sure why it wouldn't work although I am pretty sure the radio on a '94 is different than the later years.

 

[bigredmachine]

same connectors on both ends of the harness just missing the mid harness connectors, i couldnt find what they were or what they did.

if the mid harness connectors are just a noise filter than thats no big deal, i already get plenty of static on the radio with the led headlights and its an aftermarket radio so theres that as well.

 

[Red Merle]

same connectors on both ends of the harness just missing the mid harness connectors, i couldnt find what they were or what they did.

if the mid harness connectors are just a noise filter than thats no big deal, i already get plenty of static on the radio with the led headlights and its an aftermarket radio so theres that as well.

You should probably be fine then.

 

[bigredmachine]

much obliged

 

[bigredmachine]

so as an update I finally got around to installing the new to me harness and it works so the 95-97 harness will work with 93-94 trucks, nice to have the gauge working again