jdm h22a in a 93 CX. im using the CX harness, and im wiring everything extra (O2 sensor, VTEC, VTEC pressure, etc) and pinning it in. im now using a P28 with a P13 chip/program. i started it again today with the "right" ECU and it is throwing one code: 22, which is VTEC pressure. fine.

problem is that it still will not rev past 2,000 RPM. if i try to rev it fast, itll bog, rev a bit, and almost die. if i rev it real slow i can get it up to 2,000 and it ALMOST dies immediately. i cannot figure out the problem, since im not throwing any codes but 22.

could it be timing? i am getting a timing light tomorrow to get that right, but when we were messing with it tonight, it only changed the idle; the rev to 2k problem is there no matter what. any ideas?

 

It could be a lot of things

Check:
Your grounds
Wiring (vtec, other soring that you did)
Timing (you do a timing belt?)
any cels?

 

im not throwing any CEL codes but 22.

i am getting a timing light tomorrow to get that right, but when we were messing with it tonight, it only changed the idle; the rev to 2k problem is there no matter what. could it be that the timing isnt perfect yet? im thinking its not, because like i said, it only changed the idle, the rev problem was the same no matter where i had the timing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by munk &raquo;</TD></TR><TR><TD CLASS="quote"> im now using a P28 with a P13 chip/program. i started it again today with the "right" ECU </TD></TR></TABLE>

sooo ur using a p28 or u changed to a different ecu?

 

i am using that P28 with the P13 program that i mentioned. the reason i said i started it today with the "right" ECU, which is referring to that P28 there, is because i was using some fucked up P06 before

 

No we did not change the timing belt. In fact we checked most of the seals and belts all of them looked to be very new. But regardless, The Distributer that the car came with was in horrible shape and we since replaced the dizzy. it is no longer throwing hte code 9 which was obviously assosiated with the dizzy. The o2 is now hooked up the Vtec solenoid is hooked up and i thought i had the vtec pressure switch hooked up but it is still throwing code 22.... so i dont know whats up there, could be a bad pressure switch? But regardless the car will idle, it actually idles quite nicely untill we give it gas. Then it just fall right on its face, kinda like we are flooding it. could it be a problem with the FPR?

Any insight would be helpful guys.

 

additionally its not that it wont rev.... Its that you cant give it any gas at all or it chokes, even if you go very slow with the throttle it still dies out.... Makes me thing something is up witht he tps.....

 

I don't think that your problem has anything to do with you ignition timing. It's not flashing tps code either. Did you check to make sure that the timing belt wasn't off a tooth somewhere?

 

I would check how you have your vacum wires hooked up. Also the map sensor. If any of them is wrong then your car would die. Reset the ECU then check for codes again..

 

Thats another problem we are having, We dont have a concrete idea of where all the vaccums are supposed to be....

We thought that since the dizzy was in such bad shape that maybe it siezed up and caused timing to jump a tooth but we checked TDC with the marks on the flywheel and matched them with TDC on the cam gears and it lines up...

 

In the write up on this site for the h22 swap it gives pictures of where the vacuum lines should go. Heres a link to that page. https://honda-tech.com/zero...age=1

 

We are confident in the ones show on that write up.

 

Check the cam timing and ignition timing.Do a compression test.Check the pins on the ecu plug to make sure non of them are lose.I had a similar problem where the car wouldnt rev passed 3300,turned out to be a pin was pulled out.Maybe you put the vtec pressure switch pin in the wrong slot,which could cause the ecu to freak out.Thats all I can think of now.Most of the time when ive had simlar problems where the car chokes when the throttle is opened,its either been ignition/cam timing,the ecu or fuel related.Get a fuel pressure gauge and make sure the fuel pressure isnt too low.Should be between 40-50psi I believe.

James

 

thank you jdmotive

 

Did you figure out the problem?

 

no but that was good info.. still havent solved it

 

i had the same problem on my h22 except it wouldnt rev past 3k and it would do the same things that you said it would bogg if you try to rev it and die... i swapped out the p13 for a p72 and it ran fine...i sent back the ecu to the guy i bought it from and they checked it but there was nothing wrong... so now i just run a p72

 

i had the same problem but with my DX. i changed ecu's and still the same problem. looks like it was the TPS, when i changed out my throttle body with my bro's it ran fine. I think your problem might be the same as mine, change out your TPS. **makes me miss my GSR.

 

my guess is grounds and/or a bad wiring job, please dont tell me you did finger twist and then soldered.

 

same swap , same prob and mine was a bad dist.