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hybridracer504 · 11-18-2003, 04:26 PM

i need a lil help....well here's how it went...i juss finished droppin in the motor and juss got it running....well on the first day u really drive it hard....and on the second day...i did...well i was goin about 40 mph and downshifted to 2 and as soon as vtec was about to kick in the check engine light came on so i got back home and pulled up sum codes....there where 2 codes....21 and 23...can sumone please help me out...thanks

civic15.8 · 11-18-2003, 04:29 PM

im guessing you want to know what the codes stand for?

civic15.8 · 11-18-2003, 04:33 PM

if that is what you are looking for the go here http://tech.hybridgarage.com/tech/codes.html
it is the vtec seloniod and the knock sensor either they are unplugged or they are defective

B16aJWHO · 11-18-2003, 06:28 PM

I also get a code 21, but I checked my vtec solenoid and it is still in working condition. Is there anything else that would cause this code to come up? maybe a bad ecu?

hybridracer504 · 11-19-2003, 12:43 AM

yea...ive checked dat also...and it is workin properly but ive got to check the knock sensor again cuz i havent checked dat yet..and how can i fix dat problem...thanks

darwins_vtech · 11-19-2003, 02:45 PM

the car isn't wired for a knock sensor, if it is a OBD1. you have to run a wire from the sensor to the ECU so that it will register, unless you are using an ECU that isn't looking for it. the knock sensor is a single wire plug/bolt that is located on the back of the block, below the intake manifold and by the oil filter. I think it is a green wire most of the time. just run a wire from that sensor along the wire loom to the ecu and Plug it in spot D3 or 4. Not sure. THere shouldn't be a wire in the place though- it should be an empty spot on the ecu harness.

DArin

civic15.8 · 11-19-2003, 03:15 PM

hybridracer504 · 11-19-2003, 04:48 PM

well...ive checked it and the wire is not green...it is yellow and red...so do i juss do the same procedure dat u told me...thanks

Bl6CRX · 11-19-2003, 05:01 PM

Quote:

Originally posted by hybridracer504@Nov 19 2003, 04:48 PM
well...ive checked it and the wire is not green...it is yellow and red...so do i juss do the same procedure dat u told me...thanks

right

11-18-2003, 04:29 PM	#2
civic15.8 Senior Member Join Date: Feb 2003 Location: alabama Posts: 521 iTrader: 0 / 0% Rep Power: 19	im guessing you want to know what the codes stand for? __________________ bagged and dragin

11-18-2003, 04:33 PM	#3
civic15.8 Senior Member Join Date: Feb 2003 Location: alabama Posts: 521 iTrader: 0 / 0% Rep Power: 19	if that is what you are looking for the go here http://tech.hybridgarage.com/tech/codes.html it is the vtec seloniod and the knock sensor either they are unplugged or they are defective __________________ bagged and dragin

11-19-2003, 03:15 PM	#7
civic15.8 Senior Member Join Date: Feb 2003 Location: alabama Posts: 521 iTrader: 0 / 0% Rep Power: 19	__________________ bagged and dragin

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11-18-2003, 04:26 PM	#1
hybridracer504 Senior Member Join Date: Sep 2003 Posts: 107 iTrader: 0 / 0% Rep Power: 14	i need a lil help....well here's how it went...i juss finished droppin in the motor and juss got it running....well on the first day u really drive it hard....and on the second day...i did...well i was goin about 40 mph and downshifted to 2 and as soon as vtec was about to kick in the check engine light came on so i got back home and pulled up sum codes....there where 2 codes....21 and 23...can sumone please help me out...thanks

11-18-2003, 06:28 PM	#4
B16aJWHO Junior Member Join Date: Nov 2003 Posts: 7 iTrader: 0 / 0% Rep Power: 0	I also get a code 21, but I checked my vtec solenoid and it is still in working condition. Is there anything else that would cause this code to come up? maybe a bad ecu?

11-19-2003, 12:43 AM	#5
hybridracer504 Senior Member Join Date: Sep 2003 Posts: 107 iTrader: 0 / 0% Rep Power: 14	yea...ive checked dat also...and it is workin properly but ive got to check the knock sensor again cuz i havent checked dat yet..and how can i fix dat problem...thanks

11-19-2003, 02:45 PM	#6
darwins_vtech Senior Member Join Date: Jun 2003 Location: Wisconsin Posts: 250 iTrader: 0 / 0% Rep Power: 16	the car isn't wired for a knock sensor, if it is a OBD1. you have to run a wire from the sensor to the ECU so that it will register, unless you are using an ECU that isn't looking for it. the knock sensor is a single wire plug/bolt that is located on the back of the block, below the intake manifold and by the oil filter. I think it is a green wire most of the time. just run a wire from that sensor along the wire loom to the ecu and Plug it in spot D3 or 4. Not sure. THere shouldn't be a wire in the place though- it should be an empty spot on the ecu harness. DArin

11-19-2003, 04:48 PM	#8
hybridracer504 Senior Member Join Date: Sep 2003 Posts: 107 iTrader: 0 / 0% Rep Power: 14	well...ive checked it and the wire is not green...it is yellow and red...so do i juss do the same procedure dat u told me...thanks

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