JDM b20 in EK hatch help!!
#1
Honda-Tech Member
Thread Starter
JDM b20 in EK hatch help!!
Well, i just picked up a jdm b20b motor and noticed that it doesn't have a knock sensor nor does it have a cranks sensor. What should i do about this. I've got a 96 ek hatch. Will my car run sh*tty without those two sensors? what can i do to get these sensors. can i just buy a knock sensor and install it into the back of the block where its suppose to go cause i believe i saw a threaded whole for it. as for the cranks sensor what should i do? please help me cause the car is my daily!
#2
Honda-Tech Member
Join Date: Jul 2007
Location: Nuclear City
Posts: 559
Likes: 0
Received 0 Likes
on
0 Posts
Re: JDM b20 in EK hatch help!!
I say you need them and my supporting evidence; however, it would be beneficial to pick up a Haynes for a CRV and you car. I would also reccomend building the motor up a little before you drop it in, B20 VTECs are hella sweet. Someone else might have to anser the mounting portion because I have never had an issue and mine are fine.
http://www.google.com/search?hl=en&r...3Acrank+sensor
http://www.google.com/search?hl=en&r...3Aknock+sensor
But then again from what I remember it will run if they are hooked up to the harness and not where they are suppose to be and you might as well do it 100% legit, so you don't have to go back and do it again.
http://www.google.com/search?hl=en&r...3Acrank+sensor
http://www.google.com/search?hl=en&r...3Aknock+sensor
But then again from what I remember it will run if they are hooked up to the harness and not where they are suppose to be and you might as well do it 100% legit, so you don't have to go back and do it again.
Last edited by infinitypro12; 03-09-2009 at 01:26 PM.
#4
Honda-Tech Member
Join Date: Oct 2004
Location: Cochrane, AB
Posts: 316
Likes: 0
Received 0 Likes
on
0 Posts
Re: JDM b20 in EK hatch help!!
what ecu are you running? If its the one that came with the motor then you should be good to go, as it doesn't look for those two sensors to begin with.
#5
B*a*n*n*e*d
Join Date: Mar 2009
Location: NorthWest indiana
Posts: 152
Likes: 0
Received 0 Likes
on
0 Posts
Re: JDM b20 in EK hatch help!!
i believe only vtec engines come with knock sensors. but OBD-2 engines come with crank sensors.
just do this, get an OBD-1 LS ecu, and get the jumper harness for OBD-2a to OBD-1 and there you have it, no crank sensor and no knock sensor. (and alot less CEL's now that you'd be OBD-1)
just do this, get an OBD-1 LS ecu, and get the jumper harness for OBD-2a to OBD-1 and there you have it, no crank sensor and no knock sensor. (and alot less CEL's now that you'd be OBD-1)
#6
Honda-Tech Member
Join Date: Nov 2007
Location: Huntington, Wv, USA
Posts: 459
Likes: 0
Received 0 Likes
on
0 Posts
Re: JDM b20 in EK hatch help!!
http://technet.ff-squad.com/ckftrick.htm
go there and it will tell you how to take care of your crank sensor problem if you decide to stay obd2
go there and it will tell you how to take care of your crank sensor problem if you decide to stay obd2
#7
Honda-Tech Member
iTrader: (1)
Re: JDM b20 in EK hatch help!!
Here is a good thread about B20s:
https://honda-tech.com/forums/all-motor-naturally-aspirated-44/b20-non-vtec-faq-guide-including-p8r-head-information-1467903/
According to the above link, "All 99-00 B20's have a knock sensor, regardless of where it comes from, which signifies the high compression 9.6:1 motor. If your B20 does NOT have a knock sensor, it is not the 9.6:1 compression motor"
https://honda-tech.com/forums/all-motor-naturally-aspirated-44/b20-non-vtec-faq-guide-including-p8r-head-information-1467903/
According to the above link, "All 99-00 B20's have a knock sensor, regardless of where it comes from, which signifies the high compression 9.6:1 motor. If your B20 does NOT have a knock sensor, it is not the 9.6:1 compression motor"
Trending Topics
#8
Honda-Tech Member
Thread Starter
Re: JDM b20 in EK hatch help!!
thanks for all the info. and as for the motor i have a 97 jdm one. anyone no what to do about the knock sensor if i decide to keep it obd-2?
#9
Honda-Tech Member
iTrader: (1)
Join Date: Mar 2009
Location: diamond bar
Posts: 309
Likes: 0
Received 0 Likes
on
0 Posts
Re: JDM b20 in EK hatch help!!
i believe only vtec engines come with knock sensors. but OBD-2 engines come with crank sensors.
just do this, get an OBD-1 LS ecu, and get the jumper harness for OBD-2a to OBD-1 and there you have it, no crank sensor and no knock sensor. (and alot less CEL's now that you'd be OBD-1)
just do this, get an OBD-1 LS ecu, and get the jumper harness for OBD-2a to OBD-1 and there you have it, no crank sensor and no knock sensor. (and alot less CEL's now that you'd be OBD-1)
#12
Honda-Tech Member
Join Date: Jan 2009
Location: alabama
Posts: 76
Likes: 0
Received 0 Likes
on
0 Posts
Re: JDM b20 in EK hatch help!!
your obd2-a car nonvtec car doesn't need a knock or the obd2-b 99-2000 crank pickup, jus use ls or b20 dizzy ls ecu and up your fuel pressure.Bro
#13
Honda-Tech Member
Re: JDM b20 in EK hatch help!!
there is no reason to keep it obd2 because a b20 wont smog anyways, so there are no gains to keeping it, you should get a knock sensor, unless your running an ecu made for a car without, and if your gonna run obd2 youll need the crank postition sensor.
#15
Honda-Tech Member
iTrader: (1)
Join Date: Mar 2001
Location: Providence, RI, USA
Posts: 1,654
Likes: 0
Received 0 Likes
on
0 Posts
Re: JDM b20 in EK hatch help!!
Depends on your state laws. In RI, there is no restriction on the motor, but they plug right onto the OBD2 port for emissions.
SLO-hatch, if you "plug in" for inspection in CT, you're going to have to make it work. KS can be added fairly easily and Katman's CFK trick that waynecoSI linked is even easier.
Did you know you bought the 8.8:1 motor instead of the 9.6:1? You sound surprised that it didn't have a knock sensor.
SLO-hatch, if you "plug in" for inspection in CT, you're going to have to make it work. KS can be added fairly easily and Katman's CFK trick that waynecoSI linked is even easier.
Did you know you bought the 8.8:1 motor instead of the 9.6:1? You sound surprised that it didn't have a knock sensor.
#16
Honda-Tech Member
Thread Starter
Re: JDM b20 in EK hatch help!!
Depends on your state laws. In RI, there is no restriction on the motor, but they plug right onto the OBD2 port for emissions.
SLO-hatch, if you "plug in" for inspection in CT, you're going to have to make it work. KS can be added fairly easily and Katman's CFK trick that waynecoSI linked is even easier.
Did you know you bought the 8.8:1 motor instead of the 9.6:1? You sound surprised that it didn't have a knock sensor.
SLO-hatch, if you "plug in" for inspection in CT, you're going to have to make it work. KS can be added fairly easily and Katman's CFK trick that waynecoSI linked is even easier.
Did you know you bought the 8.8:1 motor instead of the 9.6:1? You sound surprised that it didn't have a knock sensor.
thanks for all the info guys!
#19
Honda-Tech Member
Thread Starter
Re: JDM b20 in EK hatch help!!
no i got it through a trade for my messed up gsr motor. and also got 100 bucks out of it. and got to keep my arp head studs... you guys think its a good deal? and it was the one that came with the giraffe intake mani. and the p8r head.
#21
Honda-Tech Member
Thread Starter
#23
Re: JDM b20 in EK hatch help!!
if it was me and all i was running was that B20 i would just leave it obb2. get a obd2 LS ecu get a obd2 oil pump and obd2 distributor. oh and get the crank sensor and ECU. After that wiring is a breeze. Thats if you want to pass inspection. smog dont matter in CT like it does in cali. Here in texas as long as there are no codes on a OBD2 car it will pass emissions. So idealy it would have been better to get a OBD2 swap. or you could just go OBD1 and not buy as many parts. but if it is anything like here in texas you will be out of luck on inspection.
#24
Honda-Tech Member
Thread Starter
Re: JDM b20 in EK hatch help!!
if it was me and all i was running was that B20 i would just leave it obb2. get a obd2 LS ecu get a obd2 oil pump and obd2 distributor. oh and get the crank sensor and ECU. After that wiring is a breeze. Thats if you want to pass inspection. smog dont matter in CT like it does in cali. Here in texas as long as there are no codes on a OBD2 car it will pass emissions. So idealy it would have been better to get a OBD2 swap. or you could just go OBD1 and not buy as many parts. but if it is anything like here in texas you will be out of luck on inspection.
Thread
Thread Starter
Forum
Replies
Last Post