1SlowBB2

Hello.

I purchased a 1996 Prelude SI that originally had the H23 in it but the previous owner swapped in a H22A4 and tried to utilize the 98 H22 harness that came with the motor. They had No Limit Auto do the harness work. By the time I recieved the car the harness was all jacked up. I'm not pointing fingers because the PO and the shop both blame the other. Needless to say I bought a 1996 Prelude SI w/ H23 harness from Missouri to fix all that crap. Now I have a good harness, and a P28 chipped on Chrome.

The problem I'm having is I can't get the timing to change at all when I adjust the distributor. I've tried jumping the same connector you jump to pull CEL codes, nothing changes. I spoke with a local Honda genius and he said something about there being a different plug I needed to jump with the body originally being OBD2. I'm pretty sure the distributor is OBD2 seeing as how the bottom ear on the disty isn't slotted like the top 2 allowing for adjustment. What the hell am I missing? Do I need an OBD1 disty or is there a way around this?

1SlowBB2

TTT

Fabrik8

I can't exactly remember, but I think you need to jumper the service check connector so that the ECU will stop adjusting timing while you're trying to adjust it.

wright

http://www.preludezone.com/4th-gen-h...iming-set.html

1SlowBB2

Like I stated in the original post I've already done that, thing is when I rotate the distributor the timing doesn't change at all according to the light.

The real Ryan

Welp, sounds like your only option is to burn it to the ground.

1SlowBB2

I think I remember reading something about the sensor that was in the disty for the OBD1 cars was moved somewhere on the block for the OBD2 cars, anyone know anything about this?

Fabrik8

You've been reading things written by people you shouldn't listen to. OBD2 cars still have the cam and crank position sensors in the distributor. The crank fluctuation sensor is an additional sensor and is not used for crank position (it's used for crank fluctuation, which basically measures crank acceleration over a certain angular range); it's down by the oil pump. Not all OBD2 Hondas in all international markets have that sensor, for reasons I won't bore you with.

That sensor is a really big source of misinformation from the Honda crowd who doesn't know what they're talking about. Seriously though, this is what's wrong with a lot of the Honda crowd. Find misinformation, spread misinformation like it's the truth, don't learn enough about anything to realize that it's wrong. A lot of people I talk to have a lot more un-learning to do than learning, and I'm not even a Honda guru (and haven't owned one for 6 or 7 years).