92 Civic LX stock engine

Tested:
-Spark plug sparks when removed and inserted back into coil
-Can hear fuel pump when key switched to "on"

So I've narrowed it down to either main relay or fuel filter. Now in the manual book I noticed that they say "check for continuity", I know this sounds stupid but how exactly would I test for that? I took a screen pic of what I am talking about...


Also would the fuel pump still malfunction even though I can slightly hear it? Any help would nice guys

 

crack the dampener nut on the fule rail loose and put the key in the 2nd ON position.. if fuel comes out, you're cool. probably an injector or ecu problem.
if fuel doesn't come out, loosen the line from the hard line/feed line from the tank to the fuel filter. if there's no fuel there.. it's a fuel pump problem.

 

If you think it is fuel get some carb clean and take off the intake spray some down and see if it runs then kill it. (not good to run it long on carb clean) If it runs off that then you have a fuel problem. If not you could get spark but it might be to strong enough.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by diewX3 &raquo;</TD></TR><TR><TD CLASS="quote">Now in the manual book I noticed that they say "check for continuity", I know this sounds stupid but how exactly would I test for that? </TD></TR></TABLE>

You need an ohmmeter to check continuity. It will tell you if the electricity has a path the follow. If the circuit is open (no continuity) the meter will read infinite resistance.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eda6 &raquo;</TD></TR><TR><TD CLASS="quote">You need an ohmmeter to check continuity. It will tell you if the electricity has a path the follow. If the circuit is open (no continuity) the meter will read infinite resistance.</TD></TR></TABLE>Sorry if this sounds stupid but would I disconnect the relay and check without it connected to the car? I know nothing of wiring and electronics

Thanks for the other reply guys. Ill take the suggestion of checking the fuel lines. Would there be a chance that the fuel lines froze since it was snowing here few days ago? It's like 40 degrees now though so not sure if that makes a difference or not

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by diewX3 &raquo;</TD></TR><TR><TD CLASS="quote">Sorry if this sounds stupid but would I disconnect the relay and check without it connected to the car? I know nothing of wiring and electronics </TD></TR></TABLE>

Yes, remove the main relay and check the plug that connects to it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by diewX3 &raquo;</TD></TR><TR><TD CLASS="quote">
Would there be a chance that the fuel lines froze since it was snowing here few days ago? It's like 40 degrees now though so not sure if that makes a difference or not </TD></TR></TABLE>

I highly doubt it. 30's are common here and i didn't have problems when it was in the 20's
Try Mike K's advice and loosen the dampener nut to see.

 

if your getting fuel and spark , check for compression . what did you reciently do to the car to make it not start? any CEL's?

i reciently had a problem where the car just shut off on the freeway , couldnt figure it out , turned out to be my ecu had taken a ****.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hella_JDM &raquo;</TD></TR><TR><TD CLASS="quote">if your getting fuel and spark , check for compression . what did you reciently do to the car to make it not start? any CEL's?

i reciently had a problem where the car just shut off on the freeway , couldnt figure it out , turned out to be my ecu had taken a ****.</TD></TR></TABLE> That's the funny thing it's a stock motor and I changed the oil, air filter, and spark plugs 2 months ago. Not sure whats going on. And yeah ill check with Mike K's advice tommroow morning after getting home from the bus from school

 

so you just came out one morning and the car wouldnt start? or did it shut down on you before?

 

One morning it wouldn't start. It worked perfectly fine the nite before

 

swap ecu's , main relay sounds good too.