my buddies ef b16a keeps throwing a code 23 for knock sensor...
-we have replaced sensor
-placed new wire to computer..
checked for ground...
and it still throwing a code any help please

 

Are you sure the knock sensor is wired to the correct pin on the ecu?

 

that, and try a new ecu

 

What ecu are running?

 

Here's a thought maybe the sensors working and is sensing a knock in the motor or something banging against the motor or too much vibration.
you can test a knock sensor buy hooking up your dvom to it a hitting the block with a hammer i suggest testing at the ecu to rule out the wiring in between

 

well...im pretty sure its a pr3 but if its not its pwo, its my buddies car so im not sure.. The knock sensor has ground we have check that and we have put new wire and tried no knock sensor now i think he didnt use insolated wire could ahve be it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tc_gts &raquo;</TD></TR><TR><TD CLASS="quote"> i think he didnt use insolated wire could ahve be it?</TD></TR></TABLE>

loosely translates to "i don't think he used an insulated wire-could that be the problem?"

yes...always use insulated wire unless you like electrical problems and fires.

 

I think the insulated he means is like the O2 sensor where there is a grounding sheath around the normal insulation.

but I could be wrong

 

thats exactly the type of wire it uses I did my swap with that type of wire but my buddy is an idiot and doesnt wait for me to help him lolz

 

bumpity

 

are you sayin that your groundin the knock sensor?? The KS is a 1 terminal plug, make sure your pin is on the top side of the plug, and its pinned correct in the plug. Dont externallty ground it, its only 1 wire to the ecu, B19.
Ryan

 

ya i know its one wire.. and its grounds to the block... i donno im just trying to get some ideas so i when i go to his house ill know what to go looking for but thanks