95sloweg

I got a friend that just swapped a B16 in his 92 Civic Hatch. We test drove it with an open downpipe. We then put an exhaust on and then try to start it- no start. Fuel filter looks good, injectors are looking good- we even tried multiple sets of injectors that are working, but the spark plugs are still dry. If you have any ideas or if I left anything out please let me know. Thanks in advanced.

1992Si

Make sure the ECU ground is good. If the ECU doesn't receive it's 5V signal back it will not send power to the fuel pump.

-Gambit-

can you hear the fuel pump priming?

95sloweg

Fuel pump primes, good spark and i'll call him to ask about the ground.

Edit: Ground is good and we tried to run 3 diff ECUs but no start.

-Gambit-

check the fuses and clean and check the grounds

95sloweg

Fuses are good and relays are good, but what fuses were you thinking about.

95sloweg

Also, Only CEL code that came up was the vtec, code 21, but that is because Vtec is not hooked up yet.

Syndacate

I'm not that smart, maybe somebody could explain it to me.

How does the fuel get from the rail to the spark plugs?

I THINK you're saying your injectors aren't working and you've tried multiple ones...are you just confusing the words "injectors" and "spark plugs" or am I reading this the wrong way??

95sloweg

This is what we did. We took the spark cables off of the spark plugs. we cranked it and then check the plugs to see if they were getting the fuel but they were dry. We only did this test to see if they are getting the fuel they need.

Syndacate

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95sloweg &raquo;</TD></TR><TR><TD CLASS="quote">This is what we did. We took the spark cables off of the spark plugs. we cranked it and then check the plugs to see if they were getting the fuel but they were dry. We only did this test to see if they are getting the fuel they need.</TD></TR></TABLE>

O, okay, I gotcha.

Check your fuel pressure at the filter. Remember the vacuum hose going from the intake manifold to the fuel pressure regulator has to be disconnected - even though your engine's not starting the pistons would draw a vacuum throwing the reading off.

See what the pressure is at the filter while cranking it over and the vacuum line going from the intake manifold to the fuel pressure regulator unplugged.

Chiovnidca

Are you getting 12 volts at the fuel injectors?

95sloweg

It is getting the voltage to the injectors. Syndacate- what should the pressure be?

95sloweg

I forgot to put that when we spray starter fluid in the throttle body the car sometimes starts but it then shuts off like 3-5 seconds later.

Chiovnidca

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95sloweg &raquo;</TD></TR><TR><TD CLASS="quote">- what should the pressure be?</TD></TR></TABLE>
40-47 psi

95sloweg

Hes going to check the pressure today. Bump for any more ideas.

rice a roni

iTrader: (1)

if you dont have a spark tester then to test spark have your friend crank while you unplug the wires one at at time from the dizzy and look inside...if spark occurs you will see sparks fly...for fuel disconnect the fuel feed line from the fuel rail and put the key in the on position if fuel pump is running fuel should come out.

95sloweg

we dont have a spark problem we have a fuel problem. Spark is all good but there is no fuel getting to the spark plugs. Fuel also gets to the rail.

95sloweg

bump for some more ideas, still stuck.

95sloweg

Problem solved!! It turns out that a plug on the wiring harness wasnt plugged all the way in.


EDIT: The plug was on the wiring harnness above the passenger side shock tower.


Modified by 95sloweg at 10:23 PM 1/24/2008

Karna

what plug was unplugged? im having the same problem aswell

95sloweg

PM'd, let me know if that helped or if you have any questions about that description.