Hello, I'm a noobie but have gotten some good info on this site. My buddy has a 92' EG w/ B18C5 (that's the USDM Type-R, right?) Anyways, I have spent countless times over at his place trying to figure out what the problem is. He got a two wire knock sensor from a reputable shop. I de-pinned one wire and installed the knock sensor. I found the wiring diagram on here to wire it to the ECM and did so. Still, there is the 23 CEL. The timing is set correctly, the VTEC solenoid tested good, and so did the VTEC pressure sensor. Last time I was over there, I was testing for continuity from the pressure sensor to ECM and there was continuity from where the diagram says the PS should be on the ECM to the VTEC solenoid. Is it ***-backwards? What else could there be, I mean what all is required to do in the swap? BTW, he said it was an Si that should have come with SOHC VTEC and all the wiring should be legit.

 

It may very well be wired backwards, just switch the mand see what happens.

 

I was just reading through the FFS tech net and it says a U.S. 96-01 integra engine wire harness is needed. Is there any way around this? I really want to get this car up and running in top shape.

 

Id listen to him to check make sure the wires are not crossed i have wired with no problem and i have had a type r motor before

 

Aight. First thing the plugs on Vtec solenoid on the Type-r is different than the 92 EG. The 92 EG has two plugs for the vtec solenoid while the Type-R only comes with one.
like the one I have.

You should get a Vtec Solenoid from the 94-95 integra GSR and it should work fine.
So it would look like this.

 

Well I was over there yesterday and everything checks out to be good. The wiring on the passenger shock tower is all correct. I checked from there to the ECM then from there to the solenoid and pressure sensor. The knock sensor was all good. We tightened it to the block and still CEL 23.
We were double checking all the vaccum hoses and all looks good.
Ok, so the 94-95 GSR would also have the two plugs for the VTEC solenoid like the 92 EG? It's all starting to come together, except that damn knocksensor.
He has a 94' JDM B18C GSR motor, would that solenoid work?

 

No. All b-series vtec solenoids have one wire going to the solenoid. Some models(mostly us vs jdm) have a vtec pressure switch which is separate from the solenoid wire. The vtec pressure switch has 2 wires(black and blue I think). You really should trace everything directly from the ecu to the sensors and look at some integra wiring diagrams to see what its suppose to look like on the engine side. Same goes for the knock sensor. Check and see exactly where the wires go to on the ecu plug.

 

u checked the speed sensor? mine did the same thing and it was a loose conection @ the speed sensor.

 

Yep, everything has checked out to be okay, wiring-wise. Could it be internal, in the head? The speedometer still works, would the speed sensor still be bad?

 

I was searching around Phearable.net and came across a guide to bridge the VTEC solenoid to the VTEC pressure switch. When is this needed? Should I do this?

 

if the speedo works then its not that. i know that everyone says that the knock sensor must be hooked up 4 vtec to work but i did a wire tuck last year and my knock sensor wire came unhooked and vtec still worked! there r 3 things u need 4 vtec temp, speed and oil press. if u have all those then it has to be mechanical.

 

bump. Still working on this damn car. Thinking about switching solenoids to see if that would do anything. Also, switching the knocksensor to see if that works.
In the mean time, I've also got a car to work on. My 02' Smelica.

 

Listen to Katman, he doesn't lie.

u could use the stock civic harness,

run the knock, pressure, and solinode wires for it.

 

and you wont even need to do the 3 IAC wire to 2 wire conversion since your already running a 92' harness which is already 2 wire, HOOARAY !!!!@#

 

I ran the knock sensor wire, and still CEL 23. Bad sensor maybe?
We've been using a P78, I believe, from a JDM GSR. It revs out over 8k rpms and everything, just throws a CEL 23. It used to throw CEL 22, but hasn't recently. We haven't tried the P78 on his EK, but we tried his chipped P28, which he said was for a SOHC. His EK has a JDM GSR B18 and runs awesome with the chipped ECM. With the EG B18C5 swapped car, it won't rev out passed 7500 rpm but no CEL since it's Hondata. What's all this about?
Yesterday, I hard wired a switch from the positive on the battery to the VTEC solenoid to manually switch it. Nothing happened. Then we switched solenoids from a same engine, still nada. Getting stumped???

 

Since then, we swapped motors. We hooked up the new B18C5 and everything was good with the new motor. We put the old motor in another car and ran an oil line from the motor to the head and still no luck. So now what? It's gotta be the head, right? Maybe the cams are wore down or someone could of possibly swapped them? Lifters? Rockers?

 

either get a jdm computer or get a usdm vtec solenoid and chip the ecu. the solenoid u have pictured has no oil pressure sensor built in

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMEGKOUPE &raquo;</TD></TR><TR><TD CLASS="quote">either get a jdm computer or get a usdm vtec solenoid and chip the ecu. the solenoid u have pictured has no oil pressure sensor built in </TD></TR></TABLE>


there is no need for a USDM vtec solenoid, you can just jump a wire from the vtec ps to the vtec solenoid on the ECU with a wire. as for the knock sensor problem, just get a chipped p28 (or similar) and have the KS eliminated.

 

Have you tested to see if the solenoid itself is good by running power to the plug to see if it clicks?

 

That picture above is not from the car. That was somebody else that posted a picture of a JDM solenoid. This is a USDM type R engine. I have tested everything including the solenoid and pressure sensor. We put in the chipped P28 ecu and no CEL's came on, sometimes the PS CEL would pop up. With a JDM GSR ECU the Knock Sensor and PS CELs would pop up. This motor is still running with no VTEC, WTF.

 

I think we're going to tear into the head sometime soon. What would be some things to look for the VTEC not working?

 

send stock harness an itr harness 2 rywire. they did nice job on mine no trouble at all. gl mang

 

The single plug on a jdm/itr solenoid shouldn't make a difference if your running a p28 chipped w/ vtec press. & knock sensor disabled .. if your running a stock ecu thats going to look for those items then you need to get a double plugged solenoid or follow the diagram to jump that plug on the harness..

Have you also considered the knock sensor to be bad? I'd rather get another one and test it before you go tearing the head apart , honestly the issue is probably electrical and won't require you to disassemble it.

 

knock should not cause vtec not to operate, it didn't affect it on b16 when knock wire had a bad connection, 96+ no pressure switch on vtec solenoid

gl

*edit also knock should only have one wire, and its better if its a shielded wire, thats how they come from the factory *

 

Yeah, that's what I've been reading. The knock sensor should have nothing to do with VTEC not working. I'm thinking the motor is out of a 2000 type-R. I'm sure it only has one PS wire.