S-AFC II with RC 310cc injectors
05-22-2005, 06:45 PM
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S-AFC II with RC 310cc injectors
searched: https://honda-tech.com/zerothread?id=619898
i have a general idea but im callin out the people who have this setup with their turbo/na setup. my main issue is about the knock sensor monitor funciton. what is the range that you are having. at idle, its between 55-65. and while driving, around 0-5. just looking for some ideas if you use the S-AFC II.
i have a general idea but im callin out the people who have this setup with their turbo/na setup. my main issue is about the knock sensor monitor funciton. what is the range that you are having. at idle, its between 55-65. and while driving, around 0-5. just looking for some ideas if you use the S-AFC II.
07-21-2005, 11:33 AM
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Re: (eK9aT10pSi)
Recalibrate your knock sensor while the engine is hot(oil, not coolant - drive the car for 15 minutes then do the calibration).
Mine picks up a bit of engine noise at idle, and usually reads about 10 or below when it's hot.
You calibrated the sensor while the engine was cold, so that's why you're getting such high readings just cruising around.
If you ever read above about 20-30 with the sensor properly calibrated then you're picking up a bit of knock. I had my timing adjusted wrong on my SR once and I heard the knock and the S-AFC2 picked up 153! That was at just 8 psi, but it does work.
Mine picks up a bit of engine noise at idle, and usually reads about 10 or below when it's hot.
You calibrated the sensor while the engine was cold, so that's why you're getting such high readings just cruising around.
If you ever read above about 20-30 with the sensor properly calibrated then you're picking up a bit of knock. I had my timing adjusted wrong on my SR once and I heard the knock and the S-AFC2 picked up 153! That was at just 8 psi, but it does work.
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07-21-2005, 09:06 PM
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Re: (Def)
ok, im glad to hear that, the manual didnt say that, lol. so drive around a bit and do it. i also have energy suspension inserts, would that cause a little bit of extra vibration too? im assuming yes.
07-21-2005, 11:18 PM
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Re: (eK9aT10pSi)
The mounts shouldn't really affect it. The sensor can pick up internal mechanical noise from the engine in the same frequency that knock occurs(i.e. it'll pick up your valvetrain or pistons rocking slightly in the bore) - and the knock sensor will put out a voltage. That's the reason why the ECU really only looks at the knock sensor under high load/low-mid RPM regions. Otherwise it could get fooled by engine noise at idle.
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