scottied15

iTrader: (1)

ok, whats up guys??

I had a b16 in my 99 dx hatchback, had problems with it and I crossed 2 wires, it crossed with the iacv 12v. I took the engine out used a completely different engine harness running a d15b 3 stage vtec. using my obd2b to obd2a jumper harness with a p2j ecu, the fuel pump will not prime unless i jump yel/grn wire on the main relay to ground, at that point it runs continuously. I removed the jumper harness and plugged in a d16y8 ecu, and the fuel pump continuously runs without jumper on main relay and i hear what sounds like a air leak from the fuel rail location. the car wont start, it does crank. switched the main relay. fuses are all fine. also when i plug in the obd reader it wont connect even with the y8 ecu. i know the p2j wont connect.

any help is appreciated!!! merry christmas!!!

tried so far:

all 3 fuses are good

Main Relay :

ylw/drk grn - 12.33
ylw/blk - 12.32
blu/wht - 10 while cranking
black - .8 on 200 ohm setting
grn/ylw - 0
grounded grn/ylw - continuously primes
igp1 - 12.33
igp2 - 12.33

Ignition Switch :

koeo

wht/blk 5 pin - wht 7 pin - .5
ylw 5 pin - blk/ylw 5 pin - 23 and slowly goes down
wht/blk - ylw - 7.7
wht/blk - blk/ylw - 3.2
wht - ylw - 8.3
wht - bllk/ylw - 4.2

ko and cranking

wht - blk/ylw - 16 and slowly goes down
wht - blk/wht - 19 and slowly goes down
blk/ylw - blk/ylw - 8.1 and slowly goes down

not sure if im testing these right but from what i read and assuming i tested right my ignition switch crapped out. can these go bad from crossing 2 wires?

scottied15

iTrader: (1)

anyone got any ideas?

grumblemarc

iTrader: (4)

So why did you swap out the harness? And what harness was it?

scottied15

iTrader: (1)

swapped out the harness because i sold it with the b16. it was a non vtec obd2b harness and i had the vtec, knock and oil pressure soldered into it. and it worked fine before i crossed the wires. i double checked and the wires i crossed was a8 on obd1 plug with the iacv on the b16. and i crossed it with a8 (which is empty) because i thought it was a17 (iab). obd1 pin #'s are vertical and obd2's are horizontal. i was trying to wire the iacv directly from the ecu because i tried 3 different iacv's and none worked so i thought it was the wiring. and i was p/o because it wasn't working so i went and googled iacv obd1 pinouts and came up a9 and a17. a9 couldn't have messed it up because it was tied into a17. i hope you know what i mean by the vertical and horizontal pin #'s.... i had "a9" on a17 and "a17" on a8.... a7 and a8 have the same circuit which is for the fuel pump. should i swap the fuel pump?

after i crossed the wires the p06 ecu would not prime the pump but i plugged in a y8 ecu and it started right up. after i swapped the engine to the d15 that same y8 ecu will run the fuel pump constantly and the p2j ecu will not do anything.

the air leak sound i hear is fuel rushing through the return line. i know this because i pinched it off with pliers. is it possible i messed up the fuel pressure sensor?

grumblemarc

iTrader: (4)

Maybe it's something I'm missing or never noticed. Isn't the pump supposed to run all the time? I mean as soon as you turn the key to the ON position?

scottied15

iTrader: (1)

it never used to. it always primed for the 2 seconds and then shut off. I always start my car after the fuel pump stops priming. even after i crossed the wires and then hooked up the y8 ecu to the b16 it primed for 2 seconds and then shut off.

scottied15

iTrader: (1)

bump, still stumped on this.

mixed koolaid

did you ever end up figuring out this issue? I am having the same problem