vtec solenoid differences from h22a h22a5

crigal.bb6 · Post by **crigal.bb6** » Wed Jul 17, 2013 3:44 pm

Ok, feel abit stupid now. Only reason i say this is down to a friend saying (thats y ur not getting vtec) lol. Thought it would be worth asking about.
Would heat wrapping induction pipping and manifold stoop this heat issue? Any beta ways?

Post by **Merlin** » Wed Jul 17, 2013 3:52 pm

If you oil level is good and you are getting no CEL lights I think you need to have dig through the 4th gen and 5th gen service manuals and go through the trouble shooting flow charts. It will get you to check things like oil pressure sensors and ECU connections etc......

What ECU do you have?

crigal.bb6 · Post by **crigal.bb6** » Wed Jul 17, 2013 6:46 pm

Havent look at my ecu yet tbh. How do i find out what ecu i have. Its 93 bb4 h22a car. What ecu should i have?

CrunchyAdams82 · Post by **CrunchyAdams82** » Wed Jul 17, 2013 6:57 pm

If it's JDM, should be a P13.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Wed Jul 17, 2013 10:13 pm

Is the engine getting up to normal running temperature (and staying there)?

crigal.bb6 · Post by **crigal.bb6** » Thu Jul 18, 2013 10:54 am

Temp is fine. Sits in the middle never been higher. So confused. Crossed fingers it seems fine atm.

crigal.bb6 · Post by **crigal.bb6** » Fri Jul 26, 2013 3:07 pm

Merlin wrote:It should be. The H22a2 and H22a5 have the same part number according to Lings. The H22a shouldn't be different to the H22a2.

What is broken on your one? I need to swap the VTEC solenoid pressure switch from an H22a2 (my spare engine) to my H22a.

I am just going to take the solenoid of the h22a5 and do a straight switch. Will this be ok???
Seems a easy fix as i am unsure what is wrong.

crigal.bb6 · Post by **crigal.bb6** » Fri Jul 26, 2013 3:09 pm

If not how should i go about fixxing my vtec???? Help me, losing the will to live. Lol

Post by **Merlin** » Fri Jul 26, 2013 3:10 pm

I cant see it doing any harm. If there is a difference that causes it to not function properly VTEC will not engage. It should be fine though.

crigal.bb6 · Post by **crigal.bb6** » Fri Jul 26, 2013 3:20 pm

Kool. Thought this might be. Read on american forum that jdm h22a solenoid is different to new ludes because of the ecu or the way the ecu reads it is different or some jobby? Any truth in this???
How tight do you need to do up the solenoid? Worried about round of threads or getting a leak.
Can a small leak cause no vtec engagement through loss of presure? Thank for your help