Is your vtec hitting hard?

Viet · POOP Bum

Is your vtec hitting hard?

majorposer · howling machine of destruction

well, this is where i would start looking at wiring diagram's for the ignition. Cam and/or crank sensors need to be kept in mind. Is there a limp home mode? Can this be related to the different enigne in place? Lou says the engine holds back rpm when the engine is cold, and you say that the temp sensor was replaced, but what about the wiring? Grounds? Does the ecu use a different sensor to measure the temp else where?

Raoul Duke · Pronounced "dookie"

What engine is even in the beast?

What makes the ECU go into berserker mode anyways?

Does it just see the RPM needed and pop on the other rocker or does it rely on knock, throttle position, gear, knock and for what Lucas was saying coolant temp and maybe air intake?

Damn factory speed density cars. Their fuel injection is so temperamental.

Tito · Guru

The little I know about Honda swaps is that there are mounts for everything, but people tend to half ass it on the wiring. It always amazed me too. As a "hard" Honda swap is buying mounts and putting it in there, spend all this money on the engine, and have electrical tape holding wires together. So...it begs the question, what condition is the harness in?

Steve

Viet · POOP Bum

Its a b16a in the crx on a pr3 ecu.

yeah the harness was all messed up, not to mention other stuff, but lou and jon cleaned them up. Whats funny is that a shop supposedly did the wiring and it
was terrible job. As for them being right i dunno.

I believe the crank angle sensor is inside the dizzy, which we did switch out with a working one.
Theres a few other coolant temp sensors on the motor but one is for the gauge and the other is for the fan.

well for vtec to work the car needs to be warmed up and the oil pressure has to reach an X amount before it switches over. vtec isnt the problem because it hits hard. it just has that weird varying rev limit.

We fixed all the CEL codes. So there shouldn't be any problems with sensors to our knowledge. not unless all the ECUs we tried were messed up.

Oh he does have a Apex'i VAFC on their, but jon doesn't think its the problem because he wired it up right. I dunno how he knows its right when the harness was all gayed.

tampa railroad hobo · Senior Member

I would check out the dizzy if you're getting the right amout of resistence. Problems with a hacked wire job would be electrical interference/grounding especially under load.

Have you tried removing the afc?

LOUMO · Because HOMO was taken

we put another dizzy on yesterday and it did the samething. Now Jon disconnected the vtec wire yesterda from the Vafc and now the vtec cuts in and out under load.....I am gonna connect today and see if that same problem occurs.

tampa railroad hobo · Senior Member

I think you might have the same problem as i do Lou.

I have oil leaking out of my vtec solenoid. 1st gear rev's all the way out but 2nd and 3rd caps at about 5k. I'm not sure if you're leaking oil at the solenoid, but you can unmount it and check if the screen filter is clogged.

If you need a new gasket and screen, they're about $10 from honda. I'm going to swap mine out tonight, so i let you know how it turns out.

A4seen Racer · VP

tampa railroad hobo wrote:

I think you might have the same problem as i do Lou.

I have oil leaking out of my vtec solenoid. 1st gear rev's all the way out but 2nd and 3rd caps at about 5k. I'm not sure if you're leaking oil at the solenoid, but you can unmount it and check if the screen filter is clogged.

If you need a new gasket and screen, they're about $10 from honda. I'm going to swap mine out tonight, so i let you know how it turns out.

That could definately be it. We tried most things electrical without any effect and you do leak some oil so we definately should take a look at the solenoid.

LOUMO · Because HOMO was taken

Umm the car doesnt leak oil.....not spots on my garage floor except from were i spill oil. Now danny made some phone calls and his friend who knows hondas better than i know VW's asked if the vtec was working and danny said yes and then the second thing the kid said was, "what about his TPS is it working". So I am gonna go to Jasons tonight to pic up a TPS and if that works then there is the problem, if not then please let me know if changing the screen works for you.

turbocivic · Civic

should've kept the mini..........

tampa railroad hobo · Senior Member

If you still have the vafc hooked up, you can check the tps voltage through there. Closed should be 0 and i think wot should be 5v.

Viet · POOP Bum

in the mini you can't hit that vtec. if you dont hit the vtec hard then i dunno what your doing.

yeah last time i was in the crx the vafc read the thottle position correctly. we didnt check the volts though. tps sensor is worth a try.

-- Edited by Viet at 21:02, 2007-07-09

A4seen Racer · VP

I'm fairly certain that you hit VTEC tooo hard and you broke it. Nice job!!

LOUMO · Because HOMO was taken

you cant always blame it on the vtec hitting hard......Well I kinda hope that the mega squirt will work cause i am sick of hunting this damn problem. I am gonna do a couple of more things tomorrow night and then go from there.

Viet · POOP Bum

you may want to try swapping out another vtec solenoid. I think a d series solenoid should work if you cant get access to a b series one.
I have yet to find a real good info on MS and vtec.

A4seen Racer · VP

Supposedly vtec is just a 12v on/off signal so it would actually be easy to control with MS. You'd just have to build an output circuit and set it up to come on with the rpm you want and go off when you want. The only thing I see as a problem with it is the dizzy. IIRC you have a toothed wheel with more than 4 teeth. That would make it more tricky but still doable.

The only thing is that you have a chipped ecu that will do almost as much as ms. So ms will fix it but it will probably cost more. Its like building a new house to fix a broken door knob. It gets the job done.

LOUMO · Because HOMO was taken

I can see if i can borrow that from Jason but, why would mine be bad if it is crossing over. Also danny is very determined to fix this cause he hates being stumped and letting the car get to him.

Viet · POOP Bum

well when u said when the vafc's vtec wire was unhooked it only went into vtec once and limited the rpms to 7200. Which is where the non vtec portion of the fuel and ignition maps stopped. so if there is no fuel or ignition to suppose rpms above it will give u an early rev limit.

when the vtec wire is hooked up i think the vafc is giving a set signal to the solenoid. even though the ecu could be telling it to not open it still opens because the vafc overrides ecu's signal. i hope you get what i'm saying. maybe its the wiring from the solenoid to the ecu.

we've tried almost everything else. we haven't messed with the solenoid or actually check if the wiring was correct for the solenoid.

LOUMO · Because HOMO was taken

Ill look into that and maybe get a solenoid, i have to find one. I am sure Jason has one i can try but i think he went out of town today.

does anybody want to take my car to tampa and leave me theres? I am getting sick of this problem.....I may blow up the car

-- Edited by LOUMO at 14:01, 2007-07-10

Viet · POOP Bum

i would if you had reverse. i wouldnt mind hitting that vtec hard.

tampa railroad hobo · Senior Member

Time for a wire tuck job...

LOUMO · Because HOMO was taken

Yeah if we have to do the wiring over i say we do it. I called All Version Motoring(big honda shop in orlando) and they said that if I cant figure it out to bring it in and they will look over it for me. There labor rate is 65 an hour. So We will see what happens in the next 2 weeks.

Tito · Guru

Viet wrote:

i would if you had reverse. i wouldnt mind hitting that vtec hard.

Lou does not have reverse in the CRX? Am I understanding this right?

Steve

A4seen Racer · VP

LOUMO wrote:

does anybody want to take my car to tampa and leave me theres? I am getting sick of this problem.....I may blow up the car

-- Edited by LOUMO at 14:01, 2007-07-10

meet me half way. just remember to park on hills when you're driving my car.

and seriously its not a bad problem at all. Dont get so emo about it

-- Edited by A4seen Racer at 19:14, 2007-07-10

LOUMO · Because HOMO was taken

Ok so I think this car is messing with me.....It rev'ed all the way to 8200 twice in 2nd gear on the way home. Man let me tell you what it was FAST!!!!!!!! I pissed off a guy in a e36 M3 BMW cause i passed him on the on ramp.

Ok so this is a sign that it is most likley a wire problem, Danny and i are gonna do some work on it tonight and ad the missing grounds. Ill let you know what happens

LOUMO · Because HOMO was taken

ok so this is getting really annoying.....disconnected the vtec controller and now we are throwing code #22 witch has to do with the vtec oil pressure. Now Viet has one I am really hoping that he can bring it to orlando tomorrow. If that does not work then i guess we will have to re-wire it and it that doesnt work it is either mega squirt or bring it to All Version.

LOUMO · Because HOMO was taken

Ok so drove to work today and not vtec at all...this really sucks. I hope i can get this fixed cause there are still things i need to buy b4 sebiring

1. fix this stupid problem
2. water temp. gauge
3. clutch and reverse
4. change all fluids
5. pads rotors and spare brake parts.

Viet · POOP Bum

yeah jon and i are probably coming up there today. I'll give you a call when we head up there.

tampa railroad hobo · Senior Member

Careful when you get that vtec working again. I fixed this one guy's ride and he fooked it up bad...