ok, im starting to get sick of this thing....

car is an 89 CRX Si
P28 ECU
OBD 1 conversion harness that came with the motor and ECU

ive got it up and running. kind of.
it still does not accelerate smoothly. it cleqans itself out at about 3500-400 RPM and starts running good. any ideas?

also, im trying to figure out what the 6 wires i have left over from my conversion harness go to. the motor is a D15B2 with OBD1 electronics and a Y8 top end.

the wire colors i have left:
white wire from the factory O2 sensor from the stock CRX engine harness

Subharness:
Yellow with green tracer
Blue with Black tracer
Green with a yellow tracer
Green with a white tracer
Yellow with aWhite tracer

i still need to hook up the Vtec switch and the 4 wire O2 sensor

i bought a brand new Bosch replacement sensor
wires are :
White
White
Black
Grey


so, i have six wires left from the jumper harness at the PCM (what i call the sub harness)and 6 wires to connect. what goes to what?

also, just as a side note, repinning the distributor and figuring out teh wiring for that sucked. bur its done and clean.

Michael

 

check your timing sounds off for the bogging issue

 

i was having same problems but mine was injector pulse. still havnt fixed so its sitting waiting to be sold to someone lol good luck to ya

 

from what iv gathered from your post, we need to know the brand of jumper so we can determine what color wires lead to what harness wires. i believe different jumpers have different wire color designations.

 

i have no idea what brand it is. i personally believe it to be homemade from factory stuff. any way to do this without knowing the brand?

Michael

 

simlar probs i ran into my injectors where wired wrong nd the timing was off bad do to my lazyness lol but redid my harness and put on timing runs fine

 

find pin diagrams. obd0 and obd1 will help. its a matter of self-teaching. i just got done with this swap for the first time a few months ago... serious pain in the ***.

just find pinout diagrams and write ups. they have tooooooooooons around. teach yourself and youll be more satisfied than just relying on some *** on h.t. that has no idea what hes talking about (happens way too often).

good luck with the wiring.. worst thing EVER.