hey i just pulled my d15b6 motor trans and harness out of my 1990 crx hf and put in a 1991 d16a6 motor trans and harness. It was missing a distributor so i put my d15 one in also have the stock ecu in it. however it turns over but i am not getting any spark or fuel. Is it cuz of my ecu? I also changed the main relay cuz i was told it might be bad. Any ideas will help i'm just lost and not sure where to go from here.

 

are you using the Si engine harness with the HF chassis harness? - if so, it is not going to work - do you have a code 15 showing at the ECU?

 

There are no codes showing. i tried a po9 ecu and still no spark and no fuel

 

check your grounds

 

which engine harness r u using? the one from the old motor or the one from the d16a6

 

I am using an si engine harness and my stock chasis harness. everything plugged in with out any problems. other than my current problem

 

you need to use the hf harness. the si harness will plug in fine, but some wire locations will be on different pins. try your hf harness, you might have a small 2-wire plug unplugged that goes next to the iacv. you should be ok with that unplugged.

 

I dont have any fuel getting to the fuel rail does that have any thing to do with the si hareness as well or do i have two seperate problems?

 

that's a separate issue. check fuses or resolder your main relay.

 

okay i just put in a new relay and fuses are good. heres one more question for ya. i dont have a check light on however my ecu has a red led on its board that flashes once then goes out and then flashes five times fast all while the key is turned on. That normal?

 

that's weird. code 5 is for MAP sensor, but you say your check engine light isn't on when the ecu is throwing the code. does your check engine light come on when you first flip the switch to the "on" position?

 

yeah i turn on the key it comes on with all the other lights and then immediatly goes off.

 

i just put my stock hf ecu back into it and it flashed a 15 this time. Man eletrical is may week point for sure. so how do i fix a defective ignition output signal?

 

i think you might have fried your igniter in your distributor. if you have an extra one swap it in and use your hf ecu.

 

alright i'll give that a try. i tried finding manuel trans fluid today and that was a no go is it true that i can just run 30 weight motor oil in it instead?

 

are you reading the responses to your original question?

you are never going to get it started with the Si engine harness mated to the HF chassis harness, unless you make some wiring changes and re-pin your connectors - the Si engine harness has the igniter wire (code 15) in the passenger side firewall connector and the HF chassis harness has the igniter wire (code 15) in the driver's side firewall connector - in addition to this major problem, all of the wires (except for one) in the driver's side connector are in different locations on the Si and HF harnesses - the easiest solution is to use the HF engine harness

 

According to this you should be able to swap the pm8(hf) for the pm6(si) without any issues, and use all the original hf harness'. http://hondaswap.com/reference-mater...pinouts-28667/

As far as the motor oil for trans. fluid. Everyone has there own opinion on whats right/wrong. Twenty years ago honda used motor oil right from the factory, but have since changed their spec. to their own trans fluid. I use honda mtf, but in a pinch i would not hesitate to use motor oil. The real dif is that the mtf has additives to prevent premature wear, and it should shift smoother. I would suggest if you have the time stop by honda buy some mtf, its expensive($8-$10 a qt. i believe) but so is replacing/rebuilding a trans.

 

cool thanks for the info. I think ive gathered enough info to get this figured out. And being that i dont have it running yet i'm not strapped on time i'll grab mtf fluid from honda

 

it's not running cause your not boosted yet lol get to it man!! jk let me know when you need help man...

 

Little do you know ive got a semi tubo on it you just cant see it cuz i turbo tucked it

 

i should've listened to you from day one sorry and thanks i swapped my hf harness back on and got it to turn over. thanks again