buddy needs help

[civicmand16y7]

he has a 94 intgra b18c1 the problem is that when he crancks it up it idels rough and when he gose to rev it up it wont rev past 4000 rpm "like its hiting the rev limeter"...when he is driveing it it is creating boost becouse the blow off vale works any help with the rveing problem and geting it to run right will help

STUFF THAT IS DONE TO THE MOTOR IF IT HELPS
bottom end fully bulit balance also and there is a block gard in place and it has been bored
stock head thats been port and polished stock cams with aftermarket cam gears
stock p72 ecu
450 cc injectus from a boosted mitsubishi eclipse
not sure what kida turbo 50mm intake and 80mm exhaust "not sure if thats right"
manual boost controller also has gredy digtal turbo timer and boost controller
he has a rester box but not sure if needs to use it

 

[2slo4u]

yes he has to use the resistor box..but he needs a tune to make it run right

 

[civic92si]

need resistor box for DSM injectors.

 

[civicmand16y7]

we knew about geting it tuned...... thank for answering the resistor box question is that going to help the reving problem or is the tuneing going to help it and is it ok to use a stock ecu or does he need to get a hondata or something like it?? thanks guys

 

[civhatch92]

You need some kind of chipped Ecu for tuning purposes; also be advised the stock 1bar map sensor will only support approximately 11psi of boost. Anything at/above that, and the car will fall flat on its face.

 

[civic92si]

you need a chip ECU. your car wont run right at all and it wont read boost..well it shouldnt read boost with stock ECU. get it dyno tune for max power or street tune...i thought it was like 11.7 blah blah

 

[civicmand16y7]

alright guys thanks for the help he dosent plan on runing that much boost maybe 6 to 8 for right now tell i eat that a$$ in my mustang..lol but thats another time and store...lol so needs a chiped ecu to be tuned anything esle we need to know any other help would be nice "frist boosted motor by the way"

 

[hybrdthry911]

i wouldnt be surprised if he's already done damage to the motor boosting on it with a stock map, and running 450cc injectors with a stock ecu.

 

[Autoworks]

Wait...you have been driving the car w/ 450cc peak and hold injectors, no resistor box, stock ecu and trying to make the system create boost...If so you've probably already created daage to the motor.

Just because you here the BOV open it does not mean you've actually crossed over to posi. pressure/boost.

You will need to install the resistor box. You will also need to install tuning software to calibrate the injector setting and tune the car.
That stock ecu should throw a CEL as soon as the map sensor sees boost.

 

[civicmand16y7]

he really has drove it much maybe just 2 or 3 times to check it out and stuff...he has asked questions how to fix it like its going out of style...his got mulitpul answer and he would do it and the he would drive it to see if it was fixed.... he hasnt touched in like 2 weeks i gave him the advise what all that has been said on here....me knower him now how to hook up the resister box if anyone had a digram or knows how please tell...lol he does have a chipped ecu so thats has been checked off the list...lol so anymore help would be greatful thanks everone

 

[civicmand16y7]

UPDATE!!!!!! the box is on idling good but still not reving past 4000 rpm. Is that a tuning problem or what???? Like ive said before any help or suggestions would be great thanks everone....its has a MSD box to is that the problem?????

 

[civicmand16y7]

UP DATE........ok guys we are stuck took the dsm inj. off and put b20 injs on took the resistor box off. to see if it would rev past 4000rpm didnt fix it...change the distributor to see if it was it...didnt work...we are stuck needing help really bad....its NOT reving past 4000 rpms. its like its hitting a rev limeter..and ideas or help would be nice PLEAS

 

[boosted to 26ps]

run it on a dyno an have a shop check the ecu for problems in the mapping....

you throwing any cel's at all.

 

[civicmand16y7]

run it on a dyno an have a shop check the ecu for problems in the mapping....

you throwing any cel's at all.

i think it is but not sure...we have been thinking its been the ecu. couse when he got it i opend it up to see if it was chipped and it had a burnt smell to it. so i turned it over and took the back off of it and yeap there it was a burnt spot...could that be the problem

 

[hybrdthry911]

if you were running the injectors with no resistor box on that ecu it could have burnt something up. another thing does the chipped ECU have a basemap? if so what is the map programmed for the stock injectors or the 450cc injectors? also if it does have a basemap maybe whoever made it put a 4000rpm rev limiter on it so you wouldnt run it much before you got tuned. also is your speed sensor working?

 

[civicmand16y7]

if you were running the injectors with no resistor box on that ecu it could have burnt something up. another thing does the chipped ECU have a basemap? if so what is the map programmed for the stock injectors or the 450cc injectors? also if it does have a basemap maybe whoever made it put a 4000rpm rev limiter on it so you wouldnt run it much before you got tuned. also is your speed sensor working?

sometime its work sometime it dont.....im not sure about the info on the ecu...i was not there when he got it from the guy. ill try to get as much info from my buddy on the ecu much asposible. i was think the same about the rev limiter becouse thats what it sounds like.....the only thing i know about the ecu is that its a p06 converted to a p28 with vtec tooken off. thats all i know of the ecu. like i said ill get as much info on the ecu as i can from the guy that soild it to my buddy couse i have to talk to him myself about a p28 ecu. that i need for my car once agian thanks to everone for the help....but keep a look on this thread

P.S just incause this could help we put the chipped ecu into my my car which has a mini me swap and it didnt rev past 4000 on my car as well dont know if that could help on anything

 

[Indy_Civic]

have u tried swapping your p28 into your buddys car?

 

[civicmand16y7]

im not the that has the chipped p06 to p28. its my buddy that has it. i just need a p28. now when i put the chipped ecu in my car it wouldnt rev past 4000. but when he had his stock p72 it done the samething. not reving past 4000. when i put the p72 into my car with the mini me swap it would run great. redlining at 7200ish. we both dont think it is the ecu. we could be wrong. we think it could be one of two things. (1) he moved the batter to the back and he could have hooked it up worng. (2) one of the map sensors is missing. now could the missing map sensor couse the problem. its the map sensor that on the intake. not sure if thats a map sensor or not. its some kinda sensor. the one on the far right that would scrow onto the top of the intake