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ohmstable · 06-04-2003, 08:58 PM

Hey is it possible that if the timing is off, the knock sensor code will keep showing up? My H22 keeps throwing code 23. What could be the cause?

dohcvtec_accord · 06-05-2003, 09:32 AM

It's definitely possible. If your timing is set incorrectly, or if your timing belt is off a tooth, it can massively affect your timing, possibly to the point that you're pissing off the knock sensor.

Also, are you sure you've got the sensor wired to the correct location at the ECU?

ohmstable · 06-05-2003, 06:23 PM

I'm pretty sure it's wired correctly but I won't know 100% until I check it. I'm going to try and check the wiring this weekend. Hopefully thats the prob.

dohcvtec_accord · 06-05-2003, 06:28 PM

I suppose it could be a bad knock sensor as well, but it's doubtful. Let us know what you find out. I originally had my knock sensor wired into the wrong place on my ECU, which made me throw the same code.

ohmstable · 06-10-2003, 12:16 AM

I checked the wiring and it was fine and replaced the knock sensor, still getting code 23.
I also unlugged the sensor and tried running the car and the code 23 came on again. Then I unplugged the pin on the ECU harness which goes to the knock sensor and the code still comes after running the car for awhile. Now I was thinking maybe its the ECU or perhaps I should be running a shielded cable from the sensor to the ECU? Maybe the ECU is picking up stray voltages and triggering the code.

Any help??

driver1 · 06-17-2003, 06:21 PM

hey if u replaced the knock sensor and u said it fine this must mean u now have 2 would u like to sell the spare

ohmstable · 06-17-2003, 10:21 PM

Sorry man, I don't have the old one because I got it from the engine importer and he took my old one.

H20too · 09-25-2003, 07:39 PM

ohm stable what did you do to correct your KS problem. I am having the same headache and have tried everything to correct it including running shielded wire different ecu replacing the ks and a whole list of other things. Any info will help greatly.

TRDSUPRAT88 · 07-02-2004, 04:31 PM

I'm having the same problem with my knock sensor going off I'm running a jdm h22 in my h23 prelude body with a p13 ecu,h23 wiring harness and h23 distibutor and coil. Ihave changed the throttle body thinking my tps sensor was bad have changed ignition wires,plugs I heard that if you run a p28 ecu which doesn't have a knock sensor it will run strong, please anyone that can help or knows what is going let me know how to fix it.

ohmstable · 07-04-2004, 12:07 AM

run a chipped p28 with H22 maps, that's what I ended up doing. It runs well.. however the p28 cannot work the secondary intake runners so you loose some lowend torque.. still beats running the p13 in limp mode with a knock sensor code!

dohcvtec_accord · 07-06-2004, 11:46 AM

A knock sensor code won't throw the ECU into limp mode. It simply causes you to lose some power since it thinks it needs to retard timing.

ohmstable · 07-06-2004, 03:44 PM

yeah you're right... but the car sure feels like it's limping along!!
:P

CraigTRD · 10-14-2009, 05:30 PM

If doing the engine swap from an F22 to an H23, the knock sensor is the same connector as the F22's Power Steering Pressure Switch....so I plugged the knock sensor into it....Does anyone know what pin the F22 PSP switch is? My H23 engine has the F22 engine wire harness on it....it's running great, except I have a KS code.
Thanks! Cheers!

RoughKnight · 11-01-2009, 10:58 PM

^wow
this thread is 5 fucking years old
on top of that, make a new one.

just wtf dude

CraigTRD · 11-01-2009, 11:08 PM

And then you feel the need to make THAT^^^ post. GFY!

06-04-2003, 08:58 PM	#1
ohmstable Senior Member Join Date: May 2003 Location: Toronto, Canada Posts: 147 iTrader: 0 / 0% Rep Power: 15	Hey is it possible that if the timing is off, the knock sensor code will keep showing up? My H22 keeps throwing code 23. What could be the cause? __________________ -\|\/\/\/\/\\|- Ohmstable

06-05-2003, 09:32 AM	#2
dohcvtec_accord WRX Sellout Join Date: Sep 2002 Location: The left lane Age: 32 Posts: 8,498 iTrader: 0 / 0% Ride: 2002 WRB Impreza WRX Rep Power: 99	It's definitely possible. If your timing is set incorrectly, or if your timing belt is off a tooth, it can massively affect your timing, possibly to the point that you're pissing off the knock sensor. Also, are you sure you've got the sensor wired to the correct location at the ECU? __________________ This space left intentionally blank.

06-05-2003, 06:23 PM	#3
ohmstable Senior Member Join Date: May 2003 Location: Toronto, Canada Posts: 147 iTrader: 0 / 0% Rep Power: 15	I'm pretty sure it's wired correctly but I won't know 100% until I check it. I'm going to try and check the wiring this weekend. Hopefully thats the prob. __________________ -\|\/\/\/\/\\|- Ohmstable

06-05-2003, 06:28 PM	#4
dohcvtec_accord WRX Sellout Join Date: Sep 2002 Location: The left lane Age: 32 Posts: 8,498 iTrader: 0 / 0% Ride: 2002 WRB Impreza WRX Rep Power: 99	I suppose it could be a bad knock sensor as well, but it's doubtful. Let us know what you find out. I originally had my knock sensor wired into the wrong place on my ECU, which made me throw the same code. __________________ This space left intentionally blank.

06-10-2003, 12:16 AM	#5
ohmstable Senior Member Join Date: May 2003 Location: Toronto, Canada Posts: 147 iTrader: 0 / 0% Rep Power: 15	I checked the wiring and it was fine and replaced the knock sensor, still getting code 23. I also unlugged the sensor and tried running the car and the code 23 came on again. Then I unplugged the pin on the ECU harness which goes to the knock sensor and the code still comes after running the car for awhile. Now I was thinking maybe its the ECU or perhaps I should be running a shielded cable from the sensor to the ECU? Maybe the ECU is picking up stray voltages and triggering the code. Any help?? __________________ -\|\/\/\/\/\\|- Ohmstable


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06-17-2003, 06:21 PM	#6
driver1 Senior Member Join Date: Jan 2003 Posts: 1,978 iTrader: 0 / 0% Rep Power: 33	hey if u replaced the knock sensor and u said it fine this must mean u now have 2 would u like to sell the spare __________________ 94 Honda Accord, jdm h22 swapped daily driver 04 cbr600rr fun toy 95 toyota tacoma, lifted winter truck

06-17-2003, 10:21 PM	#7
ohmstable Senior Member Join Date: May 2003 Location: Toronto, Canada Posts: 147 iTrader: 0 / 0% Rep Power: 15	Sorry man, I don't have the old one because I got it from the engine importer and he took my old one. __________________ -\|\/\/\/\/\\|- Ohmstable

09-25-2003, 07:39 PM	#8
H20too Junior Member Join Date: Sep 2003 Posts: 1 iTrader: 0 / 0% Rep Power: 0	ohm stable what did you do to correct your KS problem. I am having the same headache and have tried everything to correct it including running shielded wire different ecu replacing the ks and a whole list of other things. Any info will help greatly.

07-02-2004, 04:31 PM	#9
TRDSUPRAT88 Junior Member Join Date: May 2004 Posts: 3 iTrader: 0 / 0% Rep Power: 0	I'm having the same problem with my knock sensor going off I'm running a jdm h22 in my h23 prelude body with a p13 ecu,h23 wiring harness and h23 distibutor and coil. Ihave changed the throttle body thinking my tps sensor was bad have changed ignition wires,plugs I heard that if you run a p28 ecu which doesn't have a knock sensor it will run strong, please anyone that can help or knows what is going let me know how to fix it.

07-04-2004, 12:07 AM	#10
ohmstable Senior Member Join Date: May 2003 Location: Toronto, Canada Posts: 147 iTrader: 0 / 0% Rep Power: 15	run a chipped p28 with H22 maps, that's what I ended up doing. It runs well.. however the p28 cannot work the secondary intake runners so you loose some lowend torque.. still beats running the p13 in limp mode with a knock sensor code! __________________ -\|\/\/\/\/\\|- Ohmstable

07-06-2004, 11:46 AM	#11
dohcvtec_accord WRX Sellout Join Date: Sep 2002 Location: The left lane Age: 32 Posts: 8,498 iTrader: 0 / 0% Ride: 2002 WRB Impreza WRX Rep Power: 99	A knock sensor code won't throw the ECU into limp mode. It simply causes you to lose some power since it thinks it needs to retard timing. __________________ This space left intentionally blank.

07-06-2004, 03:44 PM	#12
ohmstable Senior Member Join Date: May 2003 Location: Toronto, Canada Posts: 147 iTrader: 0 / 0% Rep Power: 15	yeah you're right... but the car sure feels like it's limping along!! :P __________________ -\|\/\/\/\/\\|- Ohmstable

10-14-2009, 05:30 PM	#13
CraigTRD Greenhorn Join Date: Oct 2009 Age: 30 Posts: 12 iTrader: 0 / 0% Rep Power: 0	If doing the engine swap from an F22 to an H23, the knock sensor is the same connector as the F22's Power Steering Pressure Switch....so I plugged the knock sensor into it....Does anyone know what pin the F22 PSP switch is? My H23 engine has the F22 engine wire harness on it....it's running great, except I have a KS code. Thanks! Cheers!

11-01-2009, 10:58 PM	#14
RoughKnight Christmas Car Join Date: Aug 2009 Location: Ottawa, Ont Age: 21 Posts: 350 iTrader: 0 / 0% Ride: 93 4dr D15B, Greddy Short Ram, 4-2-1 Header, 2.5" Exhaust. Rep Power: 8	^wow this thread is 5 fucking years old on top of that, make a new one. just wtf dude __________________ Please direct your questions in the following format. 1) Did I search it on Google? 2) Did I use the search function in the TOP RIGHT AREA of this page? 3) Refer to Step 1 and 2. If that doesn't work, then feel free to post.

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CraigTRD Greenhorn Join Date: Oct 2009 Age: 30 Posts: 12 iTrader: 0 / 0% Rep Power: 0	And then you feel the need to make THAT^^^ post. GFY!

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H22 Timing ; Knock Sensor