Wiring help needed- b20b into 89 DX CRX
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Junior Member
Joined: Jan 2003
Posts: 492
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From: TX, USA
Wiring help needed- b20b into 89 DX CRX
OK guys, I need some help here. I am reading conflicting things about the wiring involved. I have searched many many times and I am still uncertain.
I have seen the kenji's dpfi-mpfi swap in techgarage- but that applies to a ZC motor. Is there anything different that I need to know for the b20?
User MugenGTR has an LS integra I believe and he says that all his wiring plugged straight up to the b20 block. The car will be running an LS ecu so can't I just get the wiring harnesses (engine and interior) off an LS and plug everything up?
If I can't do that- where can I find pinouts for the DX and for the b20? If i use the DX harnesses then will they plug into the pr4 ecu?
Last question, I am planning on using a b16a (not a2) intake manifold for this swap. I realize i have to cut part of the manifold off and tap the coolant line on the block and also that i need to restud a couple holes. But does this manifold have all the right sensors?
Sorry for all the questions. I will document everything we do with pictures and text and post it up when we are done so that no one else will have ask again. This is all for my friend - DX motor is out- b20 is waiting in garage along with a turbo kit (7 psi planned). Turbo will not be going on for a while of course. Please help me out guys. Thanks a bunch.
I have seen the kenji's dpfi-mpfi swap in techgarage- but that applies to a ZC motor. Is there anything different that I need to know for the b20?
User MugenGTR has an LS integra I believe and he says that all his wiring plugged straight up to the b20 block. The car will be running an LS ecu so can't I just get the wiring harnesses (engine and interior) off an LS and plug everything up?
If I can't do that- where can I find pinouts for the DX and for the b20? If i use the DX harnesses then will they plug into the pr4 ecu?
Last question, I am planning on using a b16a (not a2) intake manifold for this swap. I realize i have to cut part of the manifold off and tap the coolant line on the block and also that i need to restud a couple holes. But does this manifold have all the right sensors?
Sorry for all the questions. I will document everything we do with pictures and text and post it up when we are done so that no one else will have ask again. This is all for my friend - DX motor is out- b20 is waiting in garage along with a turbo kit (7 psi planned). Turbo will not be going on for a while of course. Please help me out guys. Thanks a bunch.
Brrraaaap!
Joined: May 2002
Posts: 3,950
Likes: 3
From: AZ
Re: Wiring help needed- b20b into 89 DX CRX (johnzm)
About the IM, I cant help you there, cause I got a SK2 IM that needs to be installed. But I can help you with the wiring. This the best site for wiring. http://tech.hybridgarage.com/t...g.htm
The only thing that you dont need to look for is the plug that is on the other cam on the ZC that has two wires. Those two wires are on the dizzy plug from the LS dizzy that I hope your are using. Yes the harness will clip right in the ECU, but you can only mount the ECU with one bolt so it sits weird. Dont try and completely swap the entire cars harness = waste of time. The DPFI-MPFI took me two hours with a lunch break. Granted I did get C1 and C3 mixed up, I thought C3 was C2. lol Anyways if you need anything IM me, I can help. Oh BTW if there is anything that you need to hook up to the enigne IE oil pressure gauge ect. do it B4 the engine is in the car!
Good Luck!
Blaze
The only thing that you dont need to look for is the plug that is on the other cam on the ZC that has two wires. Those two wires are on the dizzy plug from the LS dizzy that I hope your are using. Yes the harness will clip right in the ECU, but you can only mount the ECU with one bolt so it sits weird. Dont try and completely swap the entire cars harness = waste of time. The DPFI-MPFI took me two hours with a lunch break. Granted I did get C1 and C3 mixed up, I thought C3 was C2. lol Anyways if you need anything IM me, I can help. Oh BTW if there is anything that you need to hook up to the enigne IE oil pressure gauge ect. do it B4 the engine is in the car!
Good Luck!
Blaze
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