- Thu Jan 29, 2009 3:33 pm
#93015
So after a long time of looking on the internet and having little to no positive result for DIY's on how to wire a map sensor I figured that I give a quick how to (will post a full one when I take pic's)
If your engine (B16A) is one of the lucky ones to not come with a MAP sensor on the Throttle Body all you need to do is go to a junk yard and get the MAP sensor and wiring, you can cut it were it meets the main harness.
First unhook the ground from your battery, Next thing to do is to look on your engine harness plug (14 pin) on your strut tower, #'s 5,6,7, should be empty. On the firewall side of that plug will be three wires coming out (mine are #5,blue/green, #6,pink/white, #7,green/yellow). I was also using the stock cx internal harness.
(sorry for the big s**ty pics) notice the empty pins under the ylw/grn, orange/blk, white wires
you can see how I cut the wires on the firewall side of the plug
Next is time to splice. (on the fire wall side of the plug)
Cut #5,blue/green and splice with green/white from your Map sensor.
Cut #6,pink/white and splice with white also from your MAP sensor.
Cut #7,green/yellow and splice with yellow/red.
After the wires are spliced take the vacuum hose coming out of the throttle body where the MAP sensor should be and leads to the evap canister and cut it and make a "T" connection on it. Connect the MAP sensor to the "T" line on the vacuum line and make sure their are no leaks from the Throttle body to the MAP sensor to the evap canister. after all this is done reconnect the ground on your battery and turn your car on, their should be no more C.E.L. code for #3.
Did this quick so the install isn't the neatest sorry.
Thats a real quick explanation of how to do it any questions just ask.
If your engine (B16A) is one of the lucky ones to not come with a MAP sensor on the Throttle Body all you need to do is go to a junk yard and get the MAP sensor and wiring, you can cut it were it meets the main harness.
First unhook the ground from your battery, Next thing to do is to look on your engine harness plug (14 pin) on your strut tower, #'s 5,6,7, should be empty. On the firewall side of that plug will be three wires coming out (mine are #5,blue/green, #6,pink/white, #7,green/yellow). I was also using the stock cx internal harness.
(sorry for the big s**ty pics) notice the empty pins under the ylw/grn, orange/blk, white wires
you can see how I cut the wires on the firewall side of the plug
Next is time to splice. (on the fire wall side of the plug)
Cut #5,blue/green and splice with green/white from your Map sensor.
Cut #6,pink/white and splice with white also from your MAP sensor.
Cut #7,green/yellow and splice with yellow/red.
After the wires are spliced take the vacuum hose coming out of the throttle body where the MAP sensor should be and leads to the evap canister and cut it and make a "T" connection on it. Connect the MAP sensor to the "T" line on the vacuum line and make sure their are no leaks from the Throttle body to the MAP sensor to the evap canister. after all this is done reconnect the ground on your battery and turn your car on, their should be no more C.E.L. code for #3.
Did this quick so the install isn't the neatest sorry.
Thats a real quick explanation of how to do it any questions just ask.