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Need Help Clearing CEL (b20 swap)

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Old Nov 3, 2012 | 08:57 AM
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1Vinny's Avatar
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Default Need Help Clearing CEL (b20 swap)

I did a b20 swap in my 96 integra (obd2A) to get rid of oil buring 1.8, used the old ls intake manifold, dizzy. The b20 is a obd2B. Its running fine but the only CEL is p1337 no signal to knock sensor.. that im tryin to clear. I tried the bypass trick where u quick splice c1 to c4 and c11 to c14 then cut c1 and c11... still nothing I douple checked the wires and they are connected correctly, does this trick not work for everyone?
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Old Nov 3, 2012 | 10:13 AM
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Default Re: Need Help Clearing CEL (b20 swap)

are you using the b20 ecm? that's the only explaination to that code, since the b18 doesn't run a knock sensor and so the b18 ecm wouldn't be looking for signal.
use the b18 ecm
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Old Nov 3, 2012 | 11:29 AM
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Default Re: Need Help Clearing CEL (b20 swap)

P1337 isn't a knock sensor code its the CKF code for the sensor by the crank. Is your engine JDM because if so it doesn't have this and you'll have to bypass it.

http://technet.ff-squad.com/ckftrick.htm
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Old Nov 3, 2012 | 02:51 PM
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Default Re: Need Help Clearing CEL (b20 swap)

Im using the ls p75, and the motor is JDM thats why I tried the bypass trick and still nothing
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Old Nov 3, 2012 | 03:51 PM
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Default Re: Need Help Clearing CEL (b20 swap)

did you check for continuity across c1 and c4, then c11 and c14?
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Old Nov 7, 2012 | 12:08 PM
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Default Re: Need Help Clearing CEL (b20 swap)

My p1337 code is gone and now i got 2 p1382 codes
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Old Nov 7, 2012 | 12:12 PM
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Default Re: Need Help Clearing CEL (b20 swap)

Recheck your wiring and post pics of it if you can because it sounds like you might have wired the CKF bypass wrong.
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Old Nov 9, 2012 | 01:35 PM
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Default Re: Need Help Clearing CEL (b20 swap)




my code and my bypass, only code im running.. i cut the wires after the splice(c1-c11) but ill try to reconnect them and see if anything changes... i also have the dizzy that came with the b20b but thats obd2b and i would have to rewire to fit my obd2a harness if i use it...
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Old Nov 10, 2012 | 01:19 AM
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Default Re: Need Help Clearing CEL (b20 swap)

something happened during the splice. c4 and c14 are cam + and -. you sure you didn't cut c14 or 4? regrdless, something went wrong with those or one of those wires
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Old Nov 10, 2012 | 03:44 PM
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Default Re: Need Help Clearing CEL (b20 swap)

pretty sure i didnt cut them... the car runs fine, drive it everyday with no problems
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Old Nov 10, 2012 | 05:12 PM
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el crapitan's Avatar
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Default Re: Need Help Clearing CEL (b20 swap)

the car can actually run with no cam signal. crank signal is the necessity.
however, without cam signal, you will get horrible fuel mileage, as cam signal is used for cylinder id. without cyl id, fuel is pulsed at paired cylinders, since all the ecm has for cyl id is tdc number 1.
actually, when you first start the car, the ecm has no idea where cam, and therefore, cyl position is. cam position is learned on every start up. the ecm just dumps fuel at all cylinders until cam position is learned.

did you try clearing the code? and if so, did it come right back?
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