wont rev past 6 grand.. its a b16a sir2 motor with obd2a to obd1 conversion with a jdm ecu from hmotorsonline.com it pulls nice though motor has lsd as well. it pulls and vtec kicks in at its time and then it rev limits all sick on u.. sucks anyone have any suggestion we have no check engine lights at all. its in a 97 civic dx,

 

do u happen to know what.. could be the cause of a engine not revving past 6grand with the jdm B16a sir2 motor and ecu in an obd2 car.. 97 civic dx.. there are no check engine lights the chipped p28 although it works in that car and revs right it throws a code. not sure what code it was though. but with the chipped ecu it will not idle if u dont have foot on gas then the car will just die out.

bump

 

maybe the idle positioning sensor is messed up?

 

wont go pass 6? that sounds like dx ecu

 

does it say p30 on your ecu?

 

it's in safety mode aka LIMP MODE. something is obviously not working right *duh*. check all your wiring and make sure everything is plugged in. did you do the OBD conversion right? check it over. is there a dent in the oil pan? check that too. do you have enough oil pressure? check the dizzy, plugs, and plug wires.

try to get an ECU that is for your car at least.

 

no way its the jdm ecu.. like i said it works past 6 with the chipped p28 but throws a code.

si ecu is not obd2a its obd2b isnt it so i dont think that will work either that is why there is a conversion harness buddy.

 

what code?...

 

im at work didnt get a chance to check the code.. and the car is obd2 so i will have to take it to autozone to check the code anyways which sucks.

 

i thought ECU for that was a P30?

 

its the lil jdm sir2 obd1 ecu .. str8 from hmotors we called them and they are going to send us another one .. which is cool of them.. im hoping it will work fine. When i find out what code it was throwing on the chipped p28 then im sure that will help out a ton.

 

so they gave you a P28 with that motor?

 

try to explain it clearly so we can better understand your problem

 

the car is a 97 civic dx car is obd2a

it has a B16 sir2 swap with a jdm ecu to match. that is all obd1

the rev limiter hits at 6g's

if u use a chipped p28 ecu then it revs up all the way,,, but not with the jdm ecu..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pane93civhb &raquo;</TD></TR><TR><TD CLASS="quote">im at work didnt get a chance to check the code.. and the car is obd2 so i will have to take it to autozone to check the code anyways which sucks. </TD></TR></TABLE>

the obd2 scanner tool won't work with an obd1 ecu. you'll need to pull the code with by jumping the CEL plug

 

ha i think i figured it out.. the problem with the jdm motor running on the p28 with the cell was on the jdm motor there is no vtec pressure switch sensor.. so that is why we get a CEL and on the jdm ecu it redlines at 6g's at idle it revs all the way up only redlines while car is in motion im pretty sure this is caused by automatic .. jdm ecu damnit sending back to hmotors as of yesterday hopefully it wont take to long to get the ecu back after that we should be str8...

car doesnt pull that hard how it is now hoping that skunk2 intake manifold V2 intake and dc 4-1 header will help out alot.. also need to get new exhaust piping. will help out i hate the raspy sound.

 

ummmm, i dont think it's supposed to redline at all while the car isn't in motion. in order for VTEC to work and for you to actually redline, you need to:

1. have correct oil pressure
2. be going at least 15 mph i think
3. have all your crap working, basically

 

I was gonna say sounds like an Automatic ECU.

 

its kinda hard trying to explain to this dude that all the damn wiring is correct i guess he is just not hearing me to well or something.. I dont wana have to start writing BIGGER or something...

Advan06 u tell me what u think is wrong then.. since u think im stupid or something and i will gladly take ur thoughts into considerations But sirrevs sounds like he understands were im coming from./

 

it's kinda hard trying to explain to someone ignorant. you can't even tell us the ECU you have. just that "its the lil jdm sir2 obd1 ecu" like i said<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Advan06 &raquo;</TD></TR><TR><TD CLASS="quote">try to explain it clearly so we can better understand your problem</TD></TR></TABLE>

and i think with P28's, it does redline all the way while not moving... but for a DOHC VTEC ecu, you have to be moving. that is my experience. let me EXPLAIN IN CAPS SO YOU KNOW WHAT IM TALKING ABOUT.

I HAD A DEL SOL SI. IT HAD A D16Z6 (SOHC VTEC OBD1) AND WAS CONTROLLED BY A P28 ECU(SOHC VTEC OBD1). WHEN I WAS NOT MOVING, I COULD REDLINE IT WITH NO PROBLEM.

DO YOU GET THAT SO FAR?

NOW I HAVE AN H22A. IM USING A P13 ECU (DOHC VTEC OBD1). WHEN IM PARKED IN NEUTRAL, I CANNOT REDLINE. WHEN I START MOVING AT ABOUT 15+ MPH, I CAN NOW REDLINE.

LET ME ADD TO WHAT I SAID EARLIER.

IN ORDER TO REDLINE/HAVE VTEC WORK CORRECTLY, YOU MUST:
1. HAVE ALL VTEC WIRES HOOKED UP
2. HAVE CORRECT OIL PRESSURE
3. BE AT OPERATING TEMPERATURE
4. MOVING AT LEAST 15 OR MORE MILES PER HOUR
5. NOT HAVE A MORON DRIVING

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pane93civhb &raquo;</TD></TR><TR><TD CLASS="quote">ha i think i figured it out.. the problem with the jdm motor running on the p28 with the cell was on the jdm motor there is no vtec pressure switch sensor.. so that is why we get a CEL and on the jdm ecu it redlines at 6g's at idle it revs all the way up only redlines while car is in motion im pretty sure this is caused by automatic .. jdm ecu damnit sending back to hmotors as of yesterday hopefully it wont take to long to get the ecu back after that we should be str8...

car doesnt pull that hard how it is now hoping that skunk2 intake manifold V2 intake and dc 4-1 header will help out alot.. also need to get new exhaust piping. will help out i hate the raspy sound. </TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pane93civhb &raquo;</TD></TR><TR><TD CLASS="quote">its kinda hard trying to explain to this dude that all the damn wiring is correct i guess he is just not hearing me to well or something.. I dont wana have to start writing BIGGER or something...

Advan06 u tell me what u think is wrong then.. since u think im stupid or something and i will gladly take ur thoughts into considerations But sirrevs sounds like he understands were im coming from./ </TD></TR></TABLE>

 

is your vtec workin? it will redline at 7500 if your a little low on oil but no 6000, thats a little weird

 

ever checked your throttle cable? that's what it sounds like to me that or you running very lean, and that wouold coincide with the 6k rev limit when you hit vtec

 

actually the throttle cable is fine.. and the oil is fine as well. We will get the ecu back from Hmotors by wednesday, It will be a standard ecu instead of an automatic and I hope it will work fine.

 

we got the ecu back and it did the exact same thing.. the vtec tries to work .. but it sputters real bad ...

1. all wiring is str8 there is no check engine light.
2. only happens if vtec is engaged like when we tried a p28 chipped and check engine light comes on after u hit 60-70 miles an hour becuz that is when the system does a check for vtec pressure vtec stops working and it will rev fine.. with no vtec.
3. going to try a new vtec selonoid we tried a fuel pump. fuel filter injectors are brand new, checked the timing as well. im stumped i feel real stupid right now talked to the guy at hmotors and he wants to be helpful but its not working im thinking it might be the vtec selenoid wondering if the gsr one will work on it fine.