Heres the story

95 Civic CX with d16a6 block and D16z6 head. I cant rev past 6k RPM. Vtec is NOT engaging, and I have no code.. none. Car is at operating temp and everything is hooked up and wired correctly. The oil jet in the block between cyl 2 and 3 has already been removed. Still, no Vtec and I cant rec past 6k RPM.

Im using p28 ECU. Anyone??

 

have you removed this?

 

yup the oil jet sounds like ur problem! /\

 

you need to read the post that I posted man... I already stated i removed the oil jet between cyl 2 and 3.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg4matze &raquo;</TD></TR><TR><TD CLASS="quote">have you removed this?

</TD></TR></TABLE>

hey are you using simple green to clean your engine. lol

 

wait... so it has to be removed? (the oil jet) and if so... he said he already removed it...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92 CIVIC HATCH VX &raquo;</TD></TR><TR><TD CLASS="quote">hey are you using simple green to clean your engine. lol </TD></TR></TABLE>

yes everything I use is gree, lik my avatar

 

i would like to know too, this is weird, im doing a minme too and i might run into similar problems

i would recheck the vtec wiring

 

I have. Ive even re-ran it 2 times. Its not throwing any codes. Even when I rev over 5k which is when I would normally hear it and it does NOT engage and I get no check engine lights.

 

 

Sounds stupid, but have you opened up your ECU? Some douche sold me a P05 with a P28 sticker....and I had the same problem. Other than that I have no idea...good luck.

 

i would try to find another p28 from a friend and plug it in and see if that fixes it.

 

nah, but it has to be a p28 because i was getting a CEL for vtec solinoid when I had the wires mixed up. Now I have no CEL's

 

well maybe if u know anyone with one u could just try it, and see if maybe its just a bad ecu. maybe your vtec soleniod is bad, but that wouldnt explain the early fuel cut off.. i say just plug in a nother ecu and see what happens.

 

Would fuel delivery be a problem? Im using 3 CX injectors and 1 Si injector. Before I pulled the Oil valve the vtec solinoid was leakin a little bit of oil. Since ive removed the valve I havent noticed any leaking but could the little amount it leaked effect it?

 

are you using an auto ecu?

 

Im using 3 CX injectors and 1 Si injector

thats most likely your problem...

 

arent all honda's that arent dohc the same cc? its like 180 or 220 isnt it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StupidSlowCRX &raquo;</TD></TR><TR><TD CLASS="quote">arent all honda's that arent dohc the same cc? its like 180 or 220 isnt it?</TD></TR></TABLE>

No. My 97 DX came with 180cc injectors and the EX intake manifold I swapped to was using 240cc injectors.

 

well... i'm running three OE injectors and a brand new on in my prelude... would that be a problem... sorry.. some of this sounds familiar...

 

B'a are all 240. Don't know about D's

 

I have all 4 Si Injectors now and still... no vtec. Before anyone asks, the timing is fine

 

sure timing is fine?

how do you know vtec isnt kickin it?

When it revs, does it sound normal? any stutter/ hesitation? hows the throttle response?

Run your stock ecu and see if it can rev past 6. Might be a messed up p28?

 

thats what im saying find someone , anyone who has a ex civic 92-95 and beg um to switch out the ecu's real fast for 5 bucks or a blow job, it doesnt take but like 5 mins

 

u should check ur ecu. u sure its a p28 ecu. it should be able to rev to 7200 even if ur vtec is not working or not hooked up.

the oil jet wouldnt have to do anything with reving pass 6k.