Hi ....I have a 93 honda civic lx...........when it sits over night I have a very difficult time starting ..........and after starting it runs rough until it warms up, then it runs great for the rest of the day....until the next morn
thank

 

check your antifreeze, maybe it's time to flush your system.

 

you ever do any maintance to your car???????? start with some obvious things(plugs, wires, fuel filter, rotor,etc). check your timing. clean your IACV(idle air control valve) with carb cleaner.

 

Yes ....the plugs, wires, carb cleaner, fuel filter, fuel pressure test, injector cleaner, o2 sensor has all been tried.
Another thing I notice....is a fuel smell on the dip stick, perhaps from flooding from constant starting attemps?

 

try changing the battery too, because mine had trouble starting in the morning when it was cold and all, and after i drive to school nd come out it starts up fine. now i got new battery and it fixed the problem

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CLMTAutoXR888 &raquo;</TD></TR><TR><TD CLASS="quote">check your antifreeze, maybe it's time to flush your system.</TD></TR></TABLE>

that would be my guess also

 

Definetly get your battery tested. If the battery is going bad, more than likely it has really low CCA ( cold cranking amps). Which would explain why its hard to start in the morning.

 

ok I have tried the battery and still the same problem.
I also flushed the gas tank, tried another computer box and still having bad luck.
When I do get the car started I have to keep pumping the gas or hold the throttle down to keep it going....It rumbles until it warms up and when it does warm up it runs good but it will not idle on it's own.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CLMTAutoXR888 &raquo;</TD></TR><TR><TD CLASS="quote">check your antifreeze, maybe it's time to flush your system.</TD></TR></TABLE>

What?????


It could be a bunch of things from sensors to ignition components to fuel.

Well, if the battery is good and you have done a tune-up, then let's look at other things.

You say it can't maintain idle. Are you throwing any codes?

Check the fuel pressure? Do you know how?
Check the MAF sensor? DO you know how?

fs

 

I have nothing to check codes.....fuel pressure was cheched and its ok
MAF sensor ? not sure and I do not know how to check