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spacemanspiff · 08-16-2009, 01:46 PM

i had a b18a1 in my crx i spun a bearing and trashed the motor. now im putting a b18b1into it. my problem is that on the a1 the crank sensor is integrated into the distributer but on the b1 it has a seperate sensor. how can i wire it in or can i use my old distributer from the a1

jlicrx · 08-16-2009, 01:55 PM

on the B18B1 the sensor behind the crank pulley is not the crank position sensor (CKP) - the CKP sensor for the B18B1 is still in the distributor - the sensor behind the crank pulley is the crankshaft speed fluctuation sensor (CKF) and is not needed unless you are using the OBD2 ECU

spacemanspiff · 08-16-2009, 02:09 PM

oh ok i was looking at the diagram for that and i saw that i wasn't sure if i needed it or no.

D16SiHatch · 08-16-2009, 08:46 PM

nope, don't need it. just use all the stuff off the a1 and swap it onto the b1. only thing left to do is extend the wires for the fan switch from the back of the block over to the side of the head at the thermostat housing.

08-16-2009, 01:46 PM	#1
spacemanspiff Member Join Date: Aug 2008 Location: outside philly Posts: 33 iTrader: 0 / 0% Ride: 90 crx with ls swap Rep Power: 3	crankshaft sensor wiring i had a b18a1 in my crx i spun a bearing and trashed the motor. now im putting a b18b1into it. my problem is that on the a1 the crank sensor is integrated into the distributer but on the b1 it has a seperate sensor. how can i wire it in or can i use my old distributer from the a1

08-16-2009, 01:55 PM	#2
jlicrx Senior Member Join Date: Jun 2003 Location: Colorado Springs Posts: 1,570 iTrader: 0 / 0% Rep Power: 64	on the B18B1 the sensor behind the crank pulley is not the crank position sensor (CKP) - the CKP sensor for the B18B1 is still in the distributor - the sensor behind the crank pulley is the crankshaft speed fluctuation sensor (CKF) and is not needed unless you are using the OBD2 ECU __________________ ZCspeed Racing

08-16-2009, 08:46 PM	#4
D16SiHatch Senior Member Join Date: Sep 2007 Posts: 795 iTrader: 0 / 0% Rep Power: 33	nope, don't need it. just use all the stuff off the a1 and swap it onto the b1. only thing left to do is extend the wires for the fan switch from the back of the block over to the side of the head at the thermostat housing. __________________ 91 Civic Si b18b1, I/H/E, 6000k HID kit, 94 teg cluster Parting mustang out to buy another civic

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08-16-2009, 02:09 PM	#3
spacemanspiff Member Join Date: Aug 2008 Location: outside philly Posts: 33 iTrader: 0 / 0% Ride: 90 crx with ls swap Rep Power: 3	oh ok i was looking at the diagram for that and i saw that i wasn't sure if i needed it or no.

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crankshaft sensor wiring