thedb63

Ok here is the problem! 96-98 ex engine swap into a 1999 civic ex shell same
engine same everything. Also swapped 99 intake manIfold onto the 96-98 engine
for harness to match up. Very simple swap probable my 50th engine swaps to date.
Ok so here is we're I feel like kicking my next door neighbors dog!

Not getting injected pulse.

This is what I did to cover all grounds

1 Car alarm took it out.

2 new ecu from friends car didn't work( both ecu work on his car)

3. Wires ,spark, cap, everything good

4 say what....... Ya that's right getting fuel all the way to the fuel rail.

5. Changed injectors for the hell of it and also scratched my freshly painted
finger nails


6. Checked all grounds 5 hundred times up and down the car goes on the lift WTF

7. Call 3 other master mechanics to come look at my car

8. New distributeR

9. All fuses and master fuses and relays are all good ....... .???? At this
point I'm looking for my neighbors dog. Waving lunch meat and whistling

10. all plugs and everything is plugged in and is all good inside out side car

12. Pulled FUEL RELAY out started car still no pulse or fuel squirting out of
injectors
O ya don't try and do this my engine bay caught on fire and everyone in the shop
was screaming like little school girls flinging there rags at the car some one
grabbed a bucket of water and flung it into the engine bay like you see clowns
throw buckets of confetti in the circuses.
Finly someone found a hose and put the fire out

12 and 1/2 . Fire did no damage at all LMFAO we have cameras in the shop that
recorded the whole thing


13. Check volts and ohms on every injecter getting volt when grounded back to
engine

14. Went back to ecu.... Sent volt threw each ejecter pins one ecu and checked
back to injecter. No breaks in wire and I'm getting signal.

15. If I spray fuel into throttle body and crank car over it starts and runs for
a min.

16. Tried 96-98 ecu for the heck of it didn't work WITH THE JUMPER HARNESS

Anyone that can give me a idea ! Please don't grab at straws I need some real
expertise here

Former User

^Please post video

Are the injector ground wires properly pinned to the ECU?

Are you running a stock 99-00 Civic EX OBD2b ECU?

Have you swapped in a known good ECU?

Any CEL codes thrown after cranking the engine for 30 seconds?

thedb63

YES AND YES LOL THE ONLY CODE THAT WAS COMING UP WAS CODE 22 FOR THE VTEC PRESSURE SWITCH AND WE SWITCHED IN MY ECU TOMY FRIENDS ECU AND IT STARTED HIS CAR RIGHT AWAY.....

jbpnoman

Whoever tried to use water to put out ANY fire in a shop needs to never come within 50 feet of the shop, period. Water will spread fuel/oil fires, and make electrical fires even more of a hazard.

Compression and leakdown tests, and check your fuel pressure at the fuel filter.

thedb63

both engines ran before we took the cars apart.....car runs with starting fluid...definetly have more than enough fuel pressure

jbpnoman

Just do the tests. You can't expect us to magically diagnose things if you aren't willing to test them. If the motor is running with starter fluid, that means it isn't getting fuel. I'm trying to help you figure out why it isn't getting fuel.

thedb63

you take the fuel filter nut off it sprays everywhere....i understand u are helping but we have pretty damn good pressure coming out.... we unplugged my friends crank sensor and his ran so we unplugged mine and it still didnt run also if anyone was thinking of going that route as wel we already tried that too

thedb63

really thinking about ripping the whole harness back out

jbpnoman

"Fuel sprays everywhere" doesn't tell us if you're within spec. Too little or too much fuel, and it won't run.

It's a damn 5 minute test. If you aren't willing to test things, don't waste our time.

thedb63

ok tested it 38 psi

Former User

Turn key off. Unplug ECU connector B.

At pins B2, B10, B20, and B22 in the free connector, use a multimeter to test for continuity to body ground. All should have continuity to body ground.

Turn key to ON(II). Measure voltage to body ground at pins B1 and B9 in the free connector. Both should have battery voltage.

--------------

OBD2b ECU connectors:

thedb63

good info ron i will try that next thank you....i will let you know how this goes

Former User

Tip -- The diagram I posted views the ECU connectors from the rear, wire side.

motegicivic

Don't forget the 99-00 has cold start injection.

thedb63

hey ron its a obd2b ecu with only 3 plugs going to the ecu

thedb63

ok so we took the 25 pin plug out and those pin locations you gave me are not getting ground to the body

Former User

Please say how is this^ is relevant here.

I think that only the auto trans Civic needs the 4th plug.


Some of the said pins must have ground because, otherwise, the fuel pump would not prime and there would be no spark at the plugs.

Describe how exactly you did the tests and also post the wire colors at the pins you tested.

Have you done the two voltage tests?

thedb63

b2 is not getting continuity to the ground b10 is not getting continuity but b20 and 22 were

did the voltage test and got 12 volts on both b1 and b 9

thedb63

where do b2 and b10 connect to on the engine harness in the engine bay?

Former User

This^ is clearly the problem. The black wires at B2 and B10 run to junction connector C116 and ultimately get grounded on the thermostat housing. Start by checking C116.

thedb63

thank you! that was definetly the problem......the ground wire was carroded about 2 inches up the plastic sleeve so we would of never seen that....thank you ron you are the man!!!!!

Former User