hey i have a 91 civic that had a dpfi obd0 motor in it. i put a b18b1 motor from a 94 integra with a 94 integra ecu. im using the 91 engine harness and i used this guide hondaswap.com/attachments/12192d1254934264-dxb18bwiring.pdf. i believe i did everything right. i have spark and fuel at the rail but the injectors will not pulse. i couldnt figure out how to repin the connectors so i just wired right into the obd0 to obd1 jumper harness. my grounds are good at the thermostat and i dont have the battery to tranny to frame ground because my battery is in the back. i dont have most of the vaccuum lines hooked up cause im just trying to fix the injector pulse. ive tried another ecu and no luck. i also just twisted the wires together so i could easily change something if i messed up. all you have to do is rewire the distibutor and make 2 wires for the other injectors right?

 

Is there battery voltage at all 4 injector clips?

 

I connected a test light to them and they didn't light up

 

They get voltage from the Yel/Blk wire from the main relay (protected by 15A ECU fuse).

 

There's 3 yellow and black wires. two in the #3 socket and one in the #7. the one doesn't have power but the two do.

 

Not sure what you're saying. What sockets are you talking about?

 

I think he is talking about fuse box.

For the injector power source, use the yellow/black wires on driver shock tower

 

I think he is talking about fuse box.

For the injector power source, use the yellow/black wires on driver shock tower

 

OP - post some clear pictures.

This^

It's terminal 8 in connector C313. Check for voltage there.

 

Make sure to also test voltage at the Yel/Blk wire at the injector resistor.

 

It says I can't post attachments I was talking about the pins in the main relay there's 8 of them and 7 have wires going to them. And I don't have a resistor box.

 

You can post pictures using PhotoBucket.

The main relay has two Yel/Blk wires. The one that runs to the fuel injectors pins to terminal 3 in the main relay connector. See diagrams below.

But start by testing voltage at terminal 8 (Yel/Blk wire) of connector C313. See post #9.

 

heres some pics http://s1205.photobucket.com/albums/bb439/speckit1994/
the one socket with two yellow and black wires have power but the one on the top with only one yellow and black wire dont have power.

 

This^ is fine.



Now this:

 

I posted another pic on my photobucket. My drivers shock tower connector has more than 8 wires running to it

 

Anyone?

 

Post the IMG codes of pictures into your post so that they display (see below). Check whether the wire color pattern in post #9 mostly fits the connector in your picture. Is there a Yel/Blk wire at the terminal 8 position. If so, check for voltage at terminal 8 on both the male and female sides of the connector pair.

 

Well, after looking at the connector in your picture, it's a 14P not a 8P connector. Post pictures showing where this connector is located in your engine bay.

 

its on the drivers side shock tower i have the dx 91 civic not the si or whatever has the 8 pin

 

Sorry, I should have thought of that. Below are your connector and its wire pin out.

The Yel/Blk wire at terminal 1 of C313 goes to the fuel injectors. Measure voltage there. FYI - The Yel/Blk wire at terminal 6 goes to the fuel pump.

 

i dont have power at 1 but i do at 6

 

This^ is a problem. The Yel/Blk wire at terminal 1 of C313 runs to main relay connector terminal 3 (see post 12). Test the wire for continuity between these two points. The wire may be broken.

 

My Yel/Blk wire at terminal 1 of C313 runs to main relay connector terminal 7
i retested it and got a really weak light until my stupid *** grounded it and i lost all power to it. i checked all the fuses and there all good

 

this pic is how low the light is on the injector wire. i got it to get power

and this is how bright it usually is

do i need to run a resistor box on an obd1 94 integra b18b1?

i have saturated injectors but there too big the start the car with the stock tune. im currently using the stock ones w/o a resistor box. do i need one?

 

This^ is correct for dpfi but not for mpfi, where the Yel/Blk wire at C313 terminal instead must pin to main relay terminal 3.

You have not made all needed wire changes for the dpfi to mpfi conversion.