project91crxsi

I have a 97 hatch put a 94 Ls in it, obd2 Ecu obd2 distributor, everything's hooked up, lights everything works, cranks and was almost starting up with starter fluid but the fuel pump isn't priming check engine isn't coming on, changed the main relay and same thing. Now we're not getting spark or fuel anyone no what this could be? We're lost been working on it for 5 days..

project91crxsi

O and the swap ran good when I pulled it out of my Integra a week ago

project91crxsi

Thanks for all the help

EgCoupe1993

did you check the ecu? or you might be missing a ground run a wire from the valve cover to the chassis if you havent already done so. Hope this helps good luck!

project91crxsi

My buddy said all I need is ground the valve cover and ground the tranny. Is this correct?

fonkernuckle

iTrader: (5)

There is another important one (ground) cause it grounds the ecu and thats the one that is on the thermostat housing.
So you need 3:valve cover, trans, thermostat housing.

project91crxsi

Alright I have them and still nothing. This makes no sense, it was starting on starting fluid but now it has no spark or fuel, the fuel pump won't prime, I'm putting another one in today see if that helps

project91crxsi

97 civic, i turn the key and the pump doesnt prime and car wont start but it cranks. i put a main relay in that was working from my integra and it wont work still. I jumped the prongs on the clip for the relay and the fuel pump runs. plug the relay back in and nothing.. any ideas?

virgineg6

Any of the pins recessed? Make sure everything is making good conact

project91crxsi

I feel like I should be running obd1 computer? I have an obd1 distributor, obd1 alternator, obd1 injectors, and obd2 computer. I'm gonna get a step down and obd1 Ecu so I don't have to worry about running with no crank sensor

Cap'N Chronic

Get the OBD1 computer with the OBD2 to OBD1 ECU jumper harness. I know my spare OBD2 LS ECU has an ignition lockout that you need to bypass to get the car to start. That could be the problem.

delsolintegra

I had that problem in a 93 del sol. Tried many things and it turned out to be the ECU.
Borrow a ECU and see if it works.

project91crxsi

got a jumper and an obd1 ecu that i was running in the integra and still nothing

project91crxsi

i picked up the jumper last night and used the obd1 ecu out of the integra and nothing... fvck this car!

Former User

Related threads merged.

Have you sanded and tightened the G101 ground on the thermostat housing?

What main relay terminal (terminal 5 from fuse 13 or terminal 7 from fuse 44) did you jump to make the fuel pump run?

Mr. EG

Check the 15a ECU fuse under the dash. Your ECU may not be getting power.

TrAeLyfe

the green plugs that are near your ecu did you hook them back up i ran into the same promble when i did my swap and forgot to hook the green pug up near the ecu and it did not prime and would not start i hooked it up and the car ran just fine hope this helps

project91crxsi

i think it was 5 and 7 on the main relay idr i saw it on a thread on here i put a wire between them on the plug for the relay and boom the pump ran.

is that the little wire that comes out of the harness right next to the fuel rail to the thermostat housing?

Former User

The fuel pump wire is Yel/Grn and pins to terminal 4 of the main relay connector. There are two tests you need to do:

1) Jump terminal 5 (also Yel/Grn wire) to terminal 4 (Yel/Grn wire) with the key in ON(II).

2) Jump terminal 7 (Wht/Blk wire) to terminal 4 (Yel/Grn wire) with the key off.

The fuel pump should run for both tests.

project91crxsi

Fuel pump primes when jumped, just put a brand new relay in today, all fuses are good, tested all the grounds with a test light and the ground from harness to thermostat wasn't grounding, took it off and sanded it now it's grounding and still no prime or spark, and yes the green plugs are plugged in

project91crxsi

I need as many thoughts oppinions as I can get, someone's bound to be right

boogaov

ground your main relay directly off the relay not through the harness. I had a similar problem and when I grounded the main relay directly I got fuel and spark.

project91crxsi

where'd you run the ground off of?

Former User

Does the fuel pump run for BOTH tests in post #19?

project91crxsi

just went and double checked, yea both ways jumped the pump turns on