H22 in a 92 civic CX
P28 Chipped (base tune)
Sk2 IM (no egr)

VTEC will engage, will last for about 3k RPM's then Cuts out and a cell comes on. Code 21.
Manually checked solenoid , and it clicks/engages.
Hard wired it from the solenoid to the ecu. (A4 pinout). Still will only engage for about 3k RPM's.

This car is set up to get a full tune this Sunday. I really need to fix this problem be for Saturday. Otherwise I need to cancel my appointment.

Anyother idea's???

 

anybody ?

 

How's your oil level?

 

oil level is good

 

Just tried another (complete) vtec solenoid. Car still engages for a few seconds,and cuts out.

 

Hrmmm is it the Ecu??? maybe theres a cut off on the vtec.. 21 means ur vtec solenoid..

 

Aslo tried it with the stock P13 ecu, and same thing.
Sceen on the solinoid has been replaced aswell. Old one was also clean.

 

What about the ground to the solenoid? did you do a continuity check?

 

ohm checked ground found ok also ohm checked single wire that goes into the solenoid to ground found 14.5 ohms specs (14-30ohms)




Modified by kennyc2189 at 10:49 AM 10/8/2008

 

also need 2 disconnect the harness from the ecm and ohm check the harness between a4 and a26 there should be between 14-30 ohms if not there is a ahort in one of the wires what wire did u hardwire a4? possible bad port and polish job on the V-TAK solenoid?haha

 

Did you check your vtec fluid level?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrecisionH23a &raquo;</TD></TR><TR><TD CLASS="quote">Did you check your vtec fluid level?</TD></TR></TABLE>



Could be a bum tune/bad ECU. You changed/checked everything VTEC related.

 

Checked oil level. Dip stick marks full. (using a 5qt Morosso oilpan, if that matters).

As for the tune/ecu. We have tried a P28 & a stock P13. Both had the same results.

 

could it be an up sidedown head gasket, not getting enough oil to the vtec

 

U GUYS GOING DEER HUNTING SUNDAY?

 

yeah. but thats a whole differnt topic.

Looks like we are taking the head off tonight, and get a look at the HG.

 

well took off the head, to see if for some crazy reason. maybe the HG ws on worng. Everything looks fine.
Maybe you guys can see something we arn't.





I gotta ask. Should the "pointy tabs" on the left point @ the t-belt?




Modified by 91' LS-VTEC at 10:36 PM 10/10/2008

 

once we get the head back on we should go around and clean the paint off of all the grounding points just to make sure that its getting good contact, figured its worth a shot

 

might be worth a shot

http://wiki.answers.com/Q/Can_...enoid

 

you are missing an o-ring in the center of the head where the cam cap goes.

 

think that would stop it from hitting vtec?

 

Will try and work on the car this weekend. Really busy.
Once again, what is th proper way the HG should go???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by philafelman &raquo;</TD></TR><TR><TD CLASS="quote">you are missing an o-ring in the center of the head where the cam cap goes.</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by philafelman &raquo;</TD></TR><TR><TD CLASS="quote">you are missing an o-ring in the center of the head where the cam cap goes.</TD></TR></TABLE>

x3

 

Check the "o" ring, and I have seen H22's with a dented oil pan not get VTEC if the pick-up is to close to pan floor. Also put a mechanical OP guage after the VTEC solenoid on the head, if it drops below 60 lbs. VTEC will stop functioning. Make sure all the rocker pins are in.