i have a b18c GSR in my 93 civic si chasis... i wired the knock sensor to the ECU.. but im using the JDM b18c ECU. when i rev up hard the CEL comes on. what can the other problem be?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wizzards581 &raquo;</TD></TR><TR><TD CLASS="quote">i have a b18c GSR in my 93 civic si chasis... i wired the knock sensor to the ECU.. but im using the JDM b18c ECU. when i rev up hard the CEL comes on. what can the other problem be? </TD></TR></TABLE>

what cel code is exactly being through? you failed to mention this.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wizzards581 &raquo;</TD></TR><TR><TD CLASS="quote">i have a b18c GSR in my 93 civic si chasis... i wired the knock sensor to the ECU.. but im using the JDM b18c ECU. when i rev up hard the CEL comes on. what can the other problem be?</TD></TR></TABLE>

Did you use shielded wire for the knock sensor wiring? If not, that would be your problem. The knock sensor is sensitive to electrical interference's and the shielded wire blocks out those interference's from the surrounding sensors and such.

 

Also double check and ensure you have set the pin in the plug fully. I had a friend that didn't do that and thought it was in, double check it as your CEL won't be on for a bit even if it's not getting a reading.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTECVillain &raquo;</TD></TR><TR><TD CLASS="quote">

Did you use shielded wire for the knock sensor wiring? If not, that would be your problem. The knock sensor is sensitive to electrical interference's and the shielded wire blocks out those interference's from the surrounding sensors and such.</TD></TR></TABLE>

I agree btw you can get the shielded wire from radio shack, just in case you didn't know.

 

its throwing 23. which is knock sensor. but its wired.... im confused?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTECVillain &raquo;</TD></TR><TR><TD CLASS="quote">

Did you use shielded wire for the knock sensor wiring? If not, that would be your problem. The knock sensor is sensitive to electrical interference's and the shielded wire blocks out those interference's from the surrounding sensors and such.</TD></TR></TABLE>

read this again! You have your answer.Another thing you can do is get a different ECU. p73 no knock sensor, p28 no knock sensor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TODAeg6 &raquo;</TD></TR><TR><TD CLASS="quote">

p73 no knock sensor</TD></TR></TABLE>

Not true. The P73 does read a knock sensor.

 

what about p72?