What water temp sensor can I pull and splice into?

[IwantMKIII]

I have a pre89, so there are 87546549845 different temp sensors. I got my replacement temp sender for my aftermarket water temp gauge and want to put it in one of the existing holes on the engine.

My question in which sensor can i pull and which sensor can i splice into that will output the correct readings to the ECU?

My original setup didn't have AC but I wanted to retain it on this new car so I don't have the extra hole this time around.

 

[adampecush]

get yourself an 89+ water outlet cover, its got one more sensor than 86.5-88.

 

[IwantMKIII]

get yourself an 89+ water outlet cover, its got one more sensor than 86.5-88.

mine already has the extra outlet....

 

[adampecush]

mine already has the extra outlet....

as in three total?

 

[IwantMKIII]

as in three total?

yes, post 89 only have 2 iirc while pre has 3

 

[adampecush]

hmm...looks like there are only two part numbers - turbo and non-turbo.

 

[Poodles]

are you keeping the stock gauge?

 

[IwantMKIII]

are you keeping the stock gauge?

I was planning on it, more as a backup if anything.

 

[jdub]

yes, post 89 only have 2 iirc while pre has 3

That's backwards
NA motors only have two as well iirc.

 

[IwantMKIII]

That's backwards
NA motors only have two as well iirc.

that don't make no sense :icon_bigg


I have a pre89 now, with pre89 harness with 3 plugs....all necessary wiring is there....if it was only meant for two then i wouldn't have the plugs on my harness?

 

[jdub]

that don't make no sense :icon_bigg

Sure it does...mines an '89 and it has 3 sensors

 

[The Dude]

It might be jdm engines that only have 2. I recall their tb's being slightly different also.

Btw my '87 turbo has 3.

 

[IwantMKIII]

my buddy's 91 only has two.......

hmmmmmm

 

[Poodles]

JDM swap

If you're not going to keep the stock gauge, you can use that spot for your new gauge.

It's the plug behind the metal bracket that holds the power steering res.

 

[jetjock]

^ Best place for it too, as the sender should be on the engine side of the t-stat. The stock gage and ECU sensor are there for a reason...