1995 Civic DX rough idle what causes it and how to fix

[Jankster7]

I have a 1995 Civic DX and its been running fine then all of a sudden it starts idleing rough when i am stoped at lights. Can you tell me how to fix this problem. thanks

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[click.1995]

I'm probably not going to be able to help you, but I'm guessing that your going to need to give a little more info as this can be caused by many things. manuel/automatic? rough in gear/neutral? Have you done anything lately like change the spark plugs?

Cheapest thing I think could just be you need a new air filter. When's the last time you changed that?

[Jankster7]

The car is a manual and it runs rough when im just ideling in neutral when i am moving it runs fine but it feels like it is being robbed of power. My gas mileage has also became very bad lately. I put a cold air intake in the car about 4 months ago but this problem just started about a week and a half ago. I just changed the oil about 2 weeks ago so maybe he banged up the spark plug wires.

[Jankster7]

Hey i just thought i need to replace my timing belt in 1000 km so maybe that is slipping or something.

[zonk]

when was the last time the fuel filter, distributor cap and waires were changed? I changed these in my 92 and it smoothed out the problem alot

[click.1995]

Fixed? If so what was it?

[jweb42055]

My friends been having the same problem on 96 ex, his idles up and down at stop lights. We may have figured it out this last weekend, when we tried to install a throttle body spacer on my 96, we installed it but when we started it, it would idle to 4000 and after 15 sec. drop to 2500 and go between there and 3500. Finally after trieing to figure it out, we said fu&& it and took it off, and just replaced the gasket, still when we started it, it would do thesame thing. Then i didn't know whatto do so i took the original gasket and put it back in, and no problem. So you may want to check your throuttle body gasket. We've tried new idle air control valve, no luck, so hopefully this will work.
Hope it helps later

[PowerWheels86]

i've read that when the idle goes up and down, it has to do with the throttle... it needs to be replaced... as far as i know

[Lomaxx]

check your throttle body i did this with my 93 dx h/b it has a idle spring this may be gone and what is forcing your car to idle rough

[ursamajorbnd]

try fuel injector cleaner, or a whole fuel system cleaner. its like $5 a bottle. it worked on my cx. it would get rough and seem to get bogged down at idle. this seemed to help solve most of the problem.

[elusive_da]

my b16 did it in my DA and i messed with the idel screw on the throttle body and it was fixed.... if ur standing by the pass. side tire look ay ur throttle body on the back top side ull see or top left side ull see a gold clolred flat headed screw.... or advance ur distributor.... it has 3 12 or 14mm bolts.... with motor off losen em' and turn it clockways or top toward the front bumber.... good luck

[omegared99]

dude check the vacum hoses my teg did the same and it was caused by a single split in them lines

[Azz1990]

i got a 1.3 civic glacier and mine did exactly the same whenever i pulled up at a junction or whatever it wud idle really rough and sometimes even cut out completely, i stripped down the carb and it was the vacum hose it wont be spark plugs or anything like that because its only when the cars idling if it was the sparks or anything it would misfire when driving casually aswell, not just when idling or at low rev speed. also check that your power steering fluid's topped up as there's another vacuum on the servo which can affect this too. hope this helps