hey i have a 1989 crx dx with a whole hf wiring harness it has a jdm b16a with a few mods also with a vafc (vtec controller) the problem is that it wont rev to 8200rpms like it should only around 6900-7000 tops with the pr3 ecu and the ecu is fine because i used someone elses pr3 and it did the same thing also when the pr3 is in it when i put it in reverse its acts like it wants to cut off and it putter and skips and whatnot so please someone help me out if they can thanks.

 

What tach are you looking at? Because if you are looking at the stock one, don't, they can easily be off by a ton up in the high rpms. If you're looking at the vafc then I don't know unless you are throwing codes and then your ECU is in limp mode. Good luck.

 

any CEL? change your vtec oil pressure switch

 

im lookin at the vafc tach and the vtec works fine?????

 

anyone>???????

 

but like stated. the stock tachs are old and my not be acurate at higher speeds. not necesary where the vtec crossover starts

 

bump this guy needs help and it's not his tach

 

yeah IT IS NOT MY TACH i have rode is cars with b16s and i can tell that mine is cutting out at lower rpms and is capable of alot more

 

pmed

 

bump

 

anyone?....anyone?....anyone?

 

YOUR TACH IS OFF, so is mine..... Sure you have rode in other b16 and thier tachs arent off, but that theirs, not yours... YOUR tach is off... thats why your redline is messed.. Now why it sputters and such, I have no idea a little more info would help out alot, sounds like something with your idle

 

the tach is not off im lookin at the tach on my vafc and and its hitting around 7000 rpms so it is not the tach on my dash its something else and everyone else has notice that its rev limiter kicks in way to soon i think about buyin a cheap chip on ebay and see what happens idk tho

 

his speed at the top of first is like 25.. his redlines 4th at about 95 it's not his tach..

 

thanks greg lol

 

ok today i went at a shop and they let me use a pw0 ecu and it reved to 7600 rpms and it felt alot better but still not to 8200 and he said that when people do b16 swaps then ur suppost to discontect the reverse lights from the tranny so i did that but still not to 8200??? i still need help

 

anyone...anyone.....anyone

 

disconnect reverse light??doubt it im running mine and it seems to work well..redline issues, wit the pw0 u sure the rev limiter isnt set for that and also check dizzy because that happend to me twice before do to a bad distributor

 

Um...You never seemed to answe my question, DO YOU HAVE ANY CEL? It's probally your vtec oil pressure switch, mine had the same probelm, would not rev to 8200... I changed the VOPS and BAM 8200 again