These are the sensors on the back of the block of my b18a1.
I'm going b20b and there's no spot for the old sensors.
Can anyone tell me what these sensors on the b18a1 are? and what do I do about them on the b20b?

B18a1...


B20b

 

thats a obd0 fan switch

on the b20 it should be on t-stat housing

 

and the sensor with the green plug on it you don't need it

you can cut it off and use the plug on the b20 fan switch just take the two wires that hook up to the b18a fan switch and add about a 8" long wire and hook it up to the green plug and hook it up to the b20 fan switch on the t-stat housing

note: the two wires are just grounds you could hook them up anyway you want

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LA_HONDAS &raquo;</TD></TR><TR><TD CLASS="quote">and the sensor with the green plug on it you don't need it

you can cut it off and use the plug on the b20 fan switch just take the two wires that hook up to the b18a fan switch and add about a 8" long wire and hook it up to the green plug and hook it up to the b20 fan switch on the t-stat housing

note: the two wires are just grounds you could hook them up anyway you want</TD></TR></TABLE>

Okay gotcha. So the green plug on the b20 is on the thermostat housing and just needs to be extended. Got it.

I just looked it up and the one beside the filter is the oil pressure switch so that's cleared up.

Now what about the one in the first picture circled that has the 2 prongs sticking out what is that for?



Modified by da.nizzle at 6:51 PM 9/12/2008

 

yup thats it

 

the sensor w/ the 2 prongs is the fan switch