cel 23, only at high rpms

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Mar 20, 2003 | 11:44 AM

fastludeh22

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From: GA

cel 23, only at high rpms

knock sensor. the cel only flashes when i hit the high rpms, 7500 or so, then i t come s on and goes off as soon as i shift.

is it seein knock, or is the sensor going bad?

Mar 20, 2003 | 12:13 PM

Sticky Tires

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From: Hamburger Hill, Kills

Re: cel 23, only at high rpms (fastludeh22)

http://www.hondaprelude.to/main_checkengine.html#codes

Mar 20, 2003 | 12:48 PM

RAB

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From: Superior, CO

Re: cel 23, only at high rpms (Sticky Tires)

Quote:

http://www.hondaprelude.to/main_checkengine.html#codes

He knows its code 23 and providing that website doesn't help, it only gives vauge probably causes. Here's real help, here's the problem flow chart.

Mar 20, 2003 | 02:29 PM

sharkcohen

Joined: Jul 2002

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From: East Bay, CA, USA

Re: cel 23, only at high rpms (fastludeh22)

Quote:

is it seein knock, or is the sensor going bad?

And just so it is clear, code 23 occurs when there is a problem with either the knock sensor or the circuit. It does not come on when the sensor picks up knock and the ecu pulls timing in response.