Code 21 (VTEC Solenoid) clicking on, instead of VTEC engaging

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Dec 16, 2005 | 11:18 AM

D-Rob

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Honda-Tech Member

Joined: Aug 2004

Posts: 4,680

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From: Carlisle, PA, USA

Code 21 (VTEC Solenoid) clicking on, instead of VTEC engaging

Like the title says, there's no VTEC. It just throws a code 21.

Wiring was re-checked, and re-run, oil level is perfect, VTEC pressure switch is hooked up properly...

JDM B16A into '93 Civic with jdm P30 computer.

Dec 16, 2005 | 12:30 PM

JayDeMgsr

Joined: Aug 2005

Posts: 46

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From: yonkers, ny, usa

Re: Code 21 (VTEC Solenoid) clicking on, instead of VTEC engaging (D-Rob)

try cleaning the little screen inside. i did it to mine when it started to crack late and it fixed it.

Dec 16, 2005 | 12:34 PM

D-Rob

Thread Starter

Honda-Tech Member

Joined: Aug 2004

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From: Carlisle, PA, USA

Re: Code 21 (jdm91integragsr)

Already tried cleaning the screen, and replacing the solenoid.

Dec 17, 2005 | 11:28 AM

infrontofu

Joined: Sep 2004

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From: Jacksonville, NC, USA

is the motor warm? becuase it has to be at a certain temp before it engages...

Dec 20, 2005 | 07:27 PM

093turbo16

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From: Carlisle, Pa, USA

Re: (infrontofu)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by infrontofu »</TD></TR><TR><TD CLASS="quote">is the motor warm? becuase it has to be at a certain temp before it engages... </TD></TR></TABLE>

yep, everything is warm, no other codes either.

Sounds to me like an ECU.

Dec 21, 2005 | 02:58 PM

093turbo16

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Joined: Jun 2004

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From: Carlisle, Pa, USA

well it wasn't the ecu. The car has a huge vacuum leak, the intake manifold I believe is the source. Hopefully that fixes it.

Jan 12, 2006 | 06:17 PM

B18cHatch06

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Joined: Aug 2004

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From: Ft.Lauderdale, Florida, U.S.A

Re: (93turbo16)

mine does the same ****..has code 21..b4 i just had tps code n it went away out of no where n i have a vtec code now instead..goes tttzz at 6K..no vtec sucks..let me knoe if you fix ur problem