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Coolant sensor plug(s)? ? ?

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Old 06-14-2011, 02:46 PM
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Default Coolant sensor plug(s)? ? ?

As I am getting closer to completion of dropping the f22b back in my Prelude here I am left with one spare plug, the EGR. Which is just fine with me, I expected that.

But, I got this here:


There are 3 plugs. They all fit the coolant sensor looking plugs. One is in the thermostat housing, one in the cylinder head and one from what it looks like fits on the from coolant housing which also has a coolant temperature sensor in it(at least the original one does).

I looked online and it looks like OG f22a only had two coolant sensors. . . . . .

Hmmmm, what gives?
Old 06-14-2011, 05:28 PM
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Default Re: Coolant sensor plug(s)? ? ?

what harness is that?
Old 06-14-2011, 08:13 PM
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Default Re: Coolant sensor plug(s)? ? ?

Originally Posted by preludeNApower
what harness is that?
f22a engine harness
Old 06-14-2011, 08:37 PM
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Default Re: Coolant sensor plug(s)? ? ?

Are you using the IABs (black box with plug mounted to the bottom of the intake manifold) ?
Old 06-14-2011, 09:04 PM
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Default Re: Coolant sensor plug(s)? ? ?

Originally Posted by Hawkze_2.3
Are you using the IABs (black box with plug mounted to the bottom of the intake manifold) ?
Nope, nothing to plug it to.
Old 06-15-2011, 10:05 AM
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Default Re: Coolant sensor plug(s)? ? ?

OK, on my H23 the gray plug goes into the white plastic sensor in the middle-right of your of your pic that it is closest to. The green plugs go closer to the water inlet/outlet.
Old 06-15-2011, 10:40 AM
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Default Re: Coolant sensor plug(s)? ? ?

Originally Posted by Hawkze_2.3
OK, on my H23 the gray plug goes into the white plastic sensor in the middle-right of your of your pic that it is closest to. The green plugs go closer to the water inlet/outlet.


Cool, I kinda figured from the harness length but I just wanted to make sure.
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