Right. Heres a little info on the V-tec system. It engages at 4400rpm. What your hearing is the 2ndary butterfly opening. Its generally what people think is the vtec system working. You will notice a power difference at both rev ranges. As for the abs if it doesnt respond try pick up another ABS control unit (seperate from the ECU) and see what happens. I had a wiring issue. Broken wire caused my issue when it came to non responsiveness and abs light on. Alternatively. remove it and the light will go out. Regards
Anton
antwerp87,
Jun 17, 7:11am
Oh and if there was any issue Vtec wouldnt engage at all and it will redline at 7k rather than 8k.
ct9a,
Jun 17, 3:54pm
check solinoid at front off engine right beside the dizzy ,also check the screen filter inside of it
at a guess putting two and two together ,wheel speed sensor causing abs light on and one of the requirements for ecu for vtec is vehicle speed
ct9a,
Jun 17, 3:59pm
! the b18c has no variable intake system with seconday butterfly!
it is run through oil pressure
abs diognostics should have each component checked not new/2nd hand items thrown at it,each case is different
if you remove it,you will require a cert
antwerp87,
Jun 17, 7:42pm
Correction. It DOES Have a 2ndary butterfly in the intake manifold. Which usually kicks in around the 6k mark. Vtec is not supposed to be heard. If you do hear it something is wrong. its supposed to kick in when the normal cam lobe has reached optimal potential. If you feel it kick in its not operating properly. What people tend to hear is the 2ndary butterfly opening in the intake manifold which has nothing to do with Vtec operation. Wheel speed sensor would be showing up a fault and if that was the case Vtec would not operate at all. If there is a problem with any sensors that are used in its operation it won't be used.
antwerp87,
Jun 17, 7:46pm
trying a new/used and operating abscontrol unit is a simple way of eliminating that as a cause. Rather than diagnosing blindly. Abs light on and not being able to interface with it is common as the abs control units around that area were an issue. Wheel speed sensor will throw up a code and won't stop a tablet hooking up to it. Try what's most obvious first
interesting have not come accross a system like that on a b series after all the engines i have rebuilt
antwerp87,
Jun 17, 9:13pm
There On the B18C1 B18C2 and B18C3 There Not on the B18B or B18A. There not on the B16A engine either. which could be why.
ct9a,
Jun 17, 10:04pm
i have a pr3 b18c from 98spec apart right now and doesnt have that system as far as i know only nz new has,b16b intake is same as b18c,same head larger porting etc. have a da6 b16a here also and doesnt have
iinteresting am going to look further into this
antwerp87,
Jun 18, 12:28am
I told ya. The b16a didn't have it. Send me a pic of your b18c intake manifold. I highly doubt it doesn't have it. Even the 2002 and onwards k series motor in the crv had it
vtecintegra,
Jun 18, 12:32am
By 98 spec you mean a Type R!
IIRC the B18c-r head is more similar to the B16a than the normal B18c
antwerp87,
Jun 18, 12:34am
by the gsr wasn't nz new. And that had it in it too. All b18c motors from 94 till the end all had it in them. the only reason yours doesn't could be because it has a different models manifold
vtecintegra,
Jun 18, 12:35am
Type R won't have it.
The US market GSR is essentially the same an an NZ VTi-R
ct9a,
Jun 18, 1:42am
Yeah 98 spec ITR ,the b18c"R" head is a b16a head ported,oversized valves etc. correct
antwerp87,
Jun 18, 2:05am
Reinforced valves more tapered valves too hardened valve springs cam angle is different. That's mainly it. Funny note. If you get a japanese import b18c and put all the type r parts in it you get a fair bit more power than a type r
ct9a,
Jun 18, 2:28am
reinforced valves! they are longer with more taper ,for more intake along with larger cam lobs, and whaty what never heard that one before.the head would always flow less,less compression ratio etc etc.any links to this claim ! im up to try something new with customers $$$ as long as facts are infront of me
bigfatmat1,
Jun 18, 2:29am
there is no power in the three pin diagnostic socket on a integra. bridge the two pin plug and see if ya get any fault codes that way. Honda computers are pretty robust. The vehicle speed sensor is in the gearbox it does not use a wheel speed sensor to determin vehicle speed.
antwerp87,
Jun 18, 2:38am
Yea Im your proof. I did it to a customers car a few years back. When I was back in NZ before I went away. Turst me there is a significant difference. Because the Type R doesnt actually use all type r engine parts available.
ct9a,
Jun 18, 6:44pm
significant difference,how many kw did it dyno! and with what mods except stock rebuild!
ct9a,
Jun 18, 6:45pm
the type R is built with type R parts,so unsure what you are meaning!
thegravelracer,
Jun 18, 7:27pm
the b16b is not the same as a b18c its similar to a b18cr but not the same and a normal b18c does have a secondary butterfly and i think your confusing the b16a with it as the vtec engagement is soley activated by oil pressure on the first b16a's [not sure about later models .the vtec should fully enage at 6,500rpm not 4,500 thats when it starts but she opens all the way up at 6.5rpm .If i was you id get rid of abs altogether its usless on these cars
ct9a,
Jun 18, 9:44pm
b16b has smaller stroke,type r b18c is same any other b18c different. yes normal b18c nz new has butterfly,unsure jdm vtir! have just looked at engines i have all b series use oil pressure to lock in high lift lob,what else moves the pin accross!.,and cam angle,tps,speed for vtec engagement it does not open gradually ,unless fitted with 2ndary intake .
but hey what would i know ive only rebuilt 20+ of them and do performance work for a living
antwerp87,
Jun 18, 11:43pm
There is no point in arguing with you as of course you know better than a fully qualified honda tech who not only did his whole apprenticeship at honda but has since gone to malaysia japan and england to engage in the honda tech championship. as a performance specialist you know what changes there are between a type r and the type r performance parts. The power output isas you know quite different. And as you know being a honda specialist yourself the intake manifold changed between the b16aand thru b18c to incorporate secondary butterflies which has carried on even till today.
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