i just put a d16y8 in my 99 civic dx i'm re-using the stock dx harness and distributer. i just made a conversion harness to go from the obd2b to obd2a so i can use the p2p ecu i've all ready swapped pin 16 to 15 on the A plug for the fuel
the car turns on and runs but the idel is all over the place kinda vering up and down and when i try to rev it up it die's right out when off the gas again and picks back up and holds idel and starts vering again
i tryed the CKF jumpers i tryed switching IAC's around (b23 - b15 - b6) did nothing i also checked if it was wrong and it was the other way (a14 - a12 - a13)
wasn't so thats my prob!
I also hooked the old ecu back up and switch pin a15 and 16 back turned back on and ran fine but's the (dx ecu p2e NON VTEC) any thoughts for a fix

I also have tryed to adjust the timing a little and got nothing

I know it in the wiring but i have no clue where to start

 

another thing is there a way to get the vtec to work with the p2e ecu i dont care if the damn ecu is a p2p or a p2e i just want the vtec to kick in i have a turbo for this car too i just want to get all the power i can
aem fuel rail, aem fuel presure reg., rc 310cc injectors, ihi turbo with a 8 lbs wastegate, hks blow off, ACT stage two clutch and flywheel, pilot cat back,
i just want this thing to f-cking go i'm out in conneticut and no one has a sick single cam and the extra horse from the vtec is what i'm trying to get so if theres a way to hook it up with out the ecu please let me know because an 90 horse engine without the turbo is a joke and well that extra 30 40 horse will be nice i also have the distributer from the d16y8 but i have no harness for the motor if need be i will get the harness but i'm all out of money and i want the sh-t done

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by custompainter &raquo;</TD></TR><TR><TD CLASS="quote">

I know it in the wiring but i have no clue where to start </TD></TR></TABLE>

I know that you know this already, but if you switched ECU's and everything idle'd fine...just like you said, its DEFINITELY a problem in the wiring. Hopefully someone can give you some good ideas on what to check first. Good luck man! At least you came to the right place. Alot of guys on here know what they're talking about.

Just hang tight for a little bit, someone will certainly come by and help you out. You'll be vtec'n by the end of the week.

 

can anyone think of anything

 

are you getting a CEL with the P2P?? You shouldn't have to change any of the IACV pins if your using a conversion harness

 

What the expletive is this:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by custompainter &raquo;</TD></TR><TR><TD CLASS="quote">i just made a conversion harness to go from the obd2b to obd2a </TD></TR></TABLE>

 

i made the harness myself and whats a CEL and how do i find it and how do i use it ???

 

ok know i feel like a dumb-ss CEL check engine light LOL.... alright i went thruogh the steps pulled the back up fuse and reset i did this first with a p75 got a code 16
then i did it with the p2p and got code 14 - 22 - 65

p75 - 16 fuel injector problem

p2p - 14 IAC Valve (Idle Air Control) defective circuit or unplugged / defective
sensor
22 VTEC Oil Pressure Switch defective circuit or unplugged / defective oil pressure switch
65 Oxygen Sensor Heater (Secondary) malfunctioning or defective oxygen sensor heater

as far as the code 65 goes i know that there is no ground hooked up from pin D13 cause there was no cross refference when i made the harness conversion i can add it easy but i dont know what to tie it to ?

as far as the code 22 goes i know that the presure switch is hooked up but there is two wires coming off a (blue/black + black) blue/bla is connected to the ecu (i hard wired that 18 gauge wire) the black isn't hooked up i didn't think it was needed = anyone know where it goes ?

now the code 14 i have no clue i know it a three wire setup and that there on the b23,b15,b6 do you think they need to be just switched around or what

see the p75 doesn't through a code 14 it throughs code 16
so what the hell is up with the p2p

another thing i just found i dont have three pins hooked up
1) IP + HO2s pump cell + pin C23 black wire
2) IP - VS - HO2s common pin C24 red wire
3) VS + VS cell voltage pin C25 white wire
do i need these theres no cross reference that i can find to tell me where they go


Modified by custompainter at 9:00 AM 1/16/2007

 

hey peps whats up still havent firgured this out yet any idea's ???????????

 

get a REAL conversion harness!!!

 

clean out the iac valve with carb/throttle body cleaner and make sure the ecu is the same year as ur CAR not the head..i did that mistake and my idle problem went away