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08-17-2005, 08:29 AM
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#1 |
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Senior Member
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Ok so I have a CEL on and I took the code off of it (blinking light) and it was 23 which is a knock sensor. My car is 95 civic and the CEL code list says 23 is for 96-98 civics...i'm guessing that's b/c usdm civics (92-95) didn't have knock sensors but jdm si's obviously did..also what about 99-00 Si's those have em too..
I was reading an article on a ls/vtec build in sport compact and it said that if the ecu throws a knock sensor code that vtec will be disabled..and mine is engaging fine (about 6000rpm). First off is this true? And if so how can i find out what is really wrong if it's not what the ecu says it is... On a side note the knock sensor CEL suprised me b/c the IACV sensor is hooked up but the hoses to/from it are not..so i thought it would have been that... Car: 95 civic, jdm b16a sir2, p30 ecu |
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08-17-2005, 01:20 PM
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#6 |
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RETIRED
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yeah thats what i'm talking about.
ok, so everything should be hooked up correctly. and you're throwing a code for knock.... so either: A- the sensor itself is bad or B- you're knocking REAL freakin bad... perhaps a timing issue or C- you really didin't wire it up right to the right pin, or it has a shitty connection. |
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08-17-2005, 01:38 PM
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#7 |
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Senior Member
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Right, i know what could be wrong if it actually is a knock sensor...i'm trying to verify (1) if VTEC will or will not engage with a bad knock sensor, (2) why code 23 is only listed for 96-98 civics...
I should also say that it is not always on once you really rev the car and/or it warms up it will come on... |
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08-17-2005, 01:40 PM
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#8 |
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RETIRED
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1) not sure. i always disable that useless freaking sensor in a chip tune
 2) the 5th gen civics don't have one... only the b-series. and besides, thats just a generic list for assumable STOCK cars. |
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09-05-2005, 01:58 PM
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#10 | |
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Junior Member
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Quote:
found out that mine was hooked up w evap plug...so look at that. |
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09-06-2005, 12:47 PM
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#11 | |
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Senior Member
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Quote:
found out that mine was hooked up w evap plug...so look at that. [/b][/quote] So the wrong plug was used and was throwing a code? The plug on mine is green and has two slots for wires, one is plugged. I tested the wire for continuity and it was fine. THe gauge of wire used was 16 ga, is that too thick (causing a CEL?) |
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09-12-2005, 06:53 PM
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#13 | |
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I wear stretchy pants
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as far as you vtec engaging question....yeah vtec will still engage. My vtec engaged when my knock sensor wasn't hooked up! i later took a closer look and hooked it back up.
LS/VTEC with pw0 __________________
Quote:
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09-12-2005, 07:47 PM
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#14 |
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Senior Member
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Aight well i noticed that the wire wasn't very far in the clip (that goes into the ecu) so i took it out and put it in a little further and now the CEL is gone. Hopefully it's gone for good, thanks for all the feedback
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