Knock Sensor code won't go away
08-11-2003, 07:40 AM
#1
Senior Member
Thread Starter
Join Date: May 2002
Location: East Coast
Posts: 124
Likes: 0
Received 0 Likes
on
0 Posts
Knock Sensor code won't go away
hey guys. gotta b18c with usdm p72 ecu. when i first got the swap done, i had the knock sensor code, drove around for almost a year before i got the thing replaced (spark plugs looked fine for a few months then they really started to burn out). after i finally got it fixed, i threw the O2 sensor code. i just replaced that along with my cat this past weekend. now the stupid knock sensor code is reappearing! WTF! (both parts are OEM Honda/Acura parts).
has anyone seen this? and yes i've tried clearing the code twice. possible bad ecu? i don't want to drive around with the code the way i did before. all help is appreciated. thanks.
has anyone seen this? and yes i've tried clearing the code twice. possible bad ecu? i don't want to drive around with the code the way i did before. all help is appreciated. thanks.
08-16-2003, 12:22 AM
#4
BOOST GOD
Join Date: Apr 2003
Location: NL CT
Posts: 1,372
Likes: 0
Received 0 Likes
on
0 Posts
The knock sensor works by measuring transient frequencies. Think vibrations, so mods can confuse it... Like strong motor mounts, etc...
Also, it is a shielded wire, so if the shield ground is messed up, there will be problems.
Maybe it's a good time to do a DIY ground kit... Might help.
This can be disabled by chipping the ecu also.
-PHiZ
Also, it is a shielded wire, so if the shield ground is messed up, there will be problems.
Maybe it's a good time to do a DIY ground kit... Might help.
This can be disabled by chipping the ecu also.
-PHiZ
