knock sensor???

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Old Mar 31, 2003 | 08:30 AM
  #1  
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From: warren, mi
Default knock sensor???

well im swaping my b18a1 out for a b18b and was wondering what i do about the knock sensor considering the b18b i dont think has one ,... and ill be running a 91 non obd pr4 ecu
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Old Mar 31, 2003 | 08:40 AM
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From: Salem, OR, USA
Default Re: knock sensor??? (joshwhe)

Unless your going LS/VTEC you shouldn't need one
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Old Mar 31, 2003 | 09:07 AM
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Default Re: knock sensor??? (Mr.Saturn)

only DOHC V-tec engines have a knock sensors, Non-vtecs dont.
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Old Mar 31, 2003 | 09:09 AM
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From: warren, mi
Default Re: knock sensor??? (zCivic)

so then my old one didnt have a knock sensor.... ok so then there will be no cel? thanks
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Old Mar 31, 2003 | 09:19 AM
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Default Re: knock sensor??? (joshwhe)

yep your ol B18A didn't have one and your new B18B doesn't either, wouldn't throw a CEL unless your using a DOHC-VTEC ecu
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Old Mar 31, 2003 | 09:28 AM
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From: warren, mi
Default Re: knock sensor??? (zCivic)

great.. thanks for the help.. so the b18b has all the same sensors as my b18a
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Old Mar 31, 2003 | 09:47 AM
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Default Re: knock sensor??? (joshwhe)

yep, different injectors though, there saturated while the 90-91s are peek hold. Just swap the injectors or remove the injector resistor box
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Old Mar 31, 2003 | 10:35 AM
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From: warren, mi
Default Re: knock sensor??? (zCivic)

while i have to use my head so im gonna stick with my injectors ,.... does theb18b have a thermoswith ??? and is that important im thinking it turns my fans on but am unsure
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Old Mar 31, 2003 | 11:11 AM
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Default Re: knock sensor??? (joshwhe)

yes the B18B does, its in a different place than the B18A, although I'm not sure exactly where, and I can't search archives to find out
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Old Mar 31, 2003 | 01:44 PM
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Default Re: knock sensor??? (Mr.Saturn)

humm.. ok thanks.. well i guess ill just have to look at it when i get the thing
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Old Mar 31, 2003 | 03:21 PM
  #11  
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Default Re: knock sensor??? (joshwhe)

B18A has it in the back of the block, just to the left of the oil filter. I could be wrong but I think I remember reading the thermoswitch on B18B was in the head. Can anyone confirm?
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