Ok so my cars all put together its running but,
there's a problem with the VTEC.<FONT SIZE="+2">?</FONT>
...... When the Vtec gets ready to engage its like it hits a rev limiter (we'll call this hitting the wall) The rpm bounces a little and doesn't go anywhere. Just like your regular rev limiter if you let your car rev too high.
....Also I have the vafc (was doing the same thing before it was hooked up) so I can change the VTEC engagement point so its not just a certain rpm. So when the engagement point is at 4000 it hits the wall at 4000, if you let it til 6000 it hits the wall at 6000. If you put the engagement point to 7000 and don't let it engage it runs fine its jut the Vtec that has a problem?
..Another thing I noticed is when I had the Vtec at 6000 and it hit the wall when I shifted to third the gear it hit the wall at 4000 even though the Vtec wasn't kicking in.

... Here are the things my mechanic has tried or ruled out. Checked over the wiring three times after it was all hooked up. Put the Vafc on to richen the fuel mixture in case it was leaning out on Vtec. Switch computers with a p28. There is a brand new dizzy from the dealership.
... Things he's going to try take off and inspect Vtec solenoid besides that he doesn't know what it is and is convinced that it is something mechanical not electrical.
..So I need help if anyone has any insight please share. The more time he takes to find the problem the more its going to cost me, so if someone has a solution I could just pay to have it fixed and finally have my car.
<FONT SIZE="+2">here's MY MODS</FONT>

 

id also check th evtec pressure switch. its near the solenoid.

 

throwing any codes (check even if cel isnt on)

 

It's not throwing any CELS and I replaced the bulb awhile back and always keep an eye on it.

 

I don't have an answer for you, but this thread might help you narrow down the problem.

https://honda-tech.com/zerothread?id=830163

 

Thanks for the thread I'm about to read it thouroughly if it has any thing my mechanic can use I'll email him with it. But I don't think it not engaging is the problem. Because I have been in cars where the Vtec doesn't engage and its nothing like this, also it doesn't limit the RPM when it doesn't engage.

 

....First I want to thank everyone for ther help and suggestions
Next I just want to clear some things up to help narrow the responses more towards the problem.
....1) The problem was happening before the VAFC was hooked up. The VAFC was hooked up to richen the fuel mixture thinking that it might be leaning out on Vtec.
.....2)It's not throwing any CELS and I replaced the bulb awhile back and always keep an eye on it.
.....3) I don't think it not engaging is the problem. Because I have been in cars where the Vtec doesn't engage and its nothing like this, also it doesn't limit the RPM when it doesn't engage.
.....4) Don't forget my mechanic is working on my car not me. He is one of the best in my area. He works on about 80% Hondas w/Vtec so I'm pretty sure he has tried all the basics even though its good to start checking those first. He also has done H22 into Accords numerous times thats one of the reasons I went to him.
......5) Yes I'm driving it for the testing of it.
Again thanks for everyone's help.
By next week I will have a digital camera that takes video for something for you guys to see how it is. Also the Vtec solenoid should be checked and cleaned out so we'll soon see if that is the route of the problem.

 

I'll be going up there to see my car monday. I'm going to take some video so you guys can see but unfortunately my camera doesn't record sound.

 

odd that it doesnt throw a light... only a knock sensor problem would limit the revs like that i think

but if you tried a p28 there is no knock on that ecu so....

 

We may have found the solution mechanics going to test it out next week. The Vtec solenoid might not be getting enough oil pressure. The cause the oil cooler. So he's going to put a oil pressure gauge on the head. Hopefully that is it if so he just has to take the oil cooler off and have it next week.
I have video with no sound but its 17MB so I have to find another website to share with you guys.
By the way if anyone knows of any websites to show video on the forum please post.

 

Hopefully this works let me know
Read before you Watch!
In order to watch please
(1)Click on link,
(2)scroll down and click free,
(3)scroll down and click PICT0021.MOV
That should work. ( I'm new to this)

http://rapidshare.de/files/306....html

...If it works you'll see the VAFC set to 5200 then the Rpm hold right there.
<u>REMEMBER THERE IS NO SOUND</U>

 

what ecu are you using exactly? p13?

also, what are the settings you have messed with on the vafc? are you sure the vafc is using the 4 cylinder setting and not 6? what is your timing currently set at?my theory is that for some reason when you hit vtec, your timing advances too much, causing knock, which will make a rev limiter right at that point...although your p28 test would rule that out...

did the p28 you used have an h22 map on it?

 

I'm running a P13. The mechanic set the VAFC before I touched it. I just changed the Vtec point the one at the top. I'm not sure about the timing but if the oil pressure thing doesn't work I'll pass on the theory. Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MADMAX &raquo;</TD></TR><TR><TD CLASS="quote">We may have found the solution mechanics going to test it out next week. The Vtec solenoid might not be getting enough oil pressure. The cause the oil cooler. So he's going to put a oil pressure gauge on the head. Hopefully that is it if so he just has to take the oil cooler off and have it next week.:firedevil</TD></TR></TABLE>
So guess what that wasn't the problem. So now we're going to get a new harness and wire it all over again back to square1.