obd2 to obd1= code 21

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Apr 27, 2005 | 02:55 AM

BlkSIvic

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Joined: Apr 2002

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From: Korea, SC

obd2 to obd1= code 21

After swapping out my obd2 ecu to a p28 I'm getting code 21 which is for the VTEC spool solenoid valve. My oil is tipped off so its not the oil pressure causing it. Has any had this type of problem before?

I tried searching but couldn't find a definte answer...

Apr 27, 2005 | 05:16 AM

Chiovnidca

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Joined: Apr 2002

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From: Cincinnati,, Oh

Re: obd2 to obd1= code 21 (BlkSIvic)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlkSIvic »</TD></TR><TR><TD CLASS="quote">After swapping out my obd2 ecu to a p28 I'm getting code 21 which is for the VTEC spool solenoid valve. My oil is tipped off so its not the oil pressure causing it. Has any had this type of problem before?

I tried searching but couldn't find a definte answer...</TD></TR></TABLE>
That code doesn't have anything to do with oil presure. The ECU isn't sensing the VTEC solenoid. Check to make sure it's good, then check your wiring and connectors.