Honda Car Forum

jartmidgets · #1 (**permalink**) 05 Oct 2009, 08:01 am

I have a 1999 honda civic that normally runs great except when it is cold started it will run fine for a little while then shortly after take off start bucking real hard and acting like the engine is either getting too much or not enough fuel. I am guessing it is probably the air intake temp sensor but i have not had a check engine light come on, is there a way to be sure it is that sensor before i spend the money to change it out?

Paul · #2 (**permalink**) 05 Oct 2009, 08:16 am

Have you done basic maintenance recently? Simple things like old spark plugs or a clogged fuel filter can also cause these issues and cut down on gas mileage

That1guy · #3 (**permalink**) 05 Oct 2009, 08:31 am

Sound like your Idle Control Valve. Check your coolant level first. If it is low it will cause your engine to act funny. If thats not it start the engine. With the engine running at idle, take off your intake place your finger over the lower port hole in the throttle body. By placing your finger over the lower port, does the idle return to normal? and is the lower port sucking air? If so you need a new one.Good Luck.

Mikaela P · #4 (**permalink**) 05 Oct 2009, 08:46 am

Possible things to look at;

1. spark plugs

2. hi tension wires

3. failing rotor

4. failing fuel pump

5. failing fuel pump relay

6. clog fuel filter

Have this things check by a good Honda mechanic. Hope this helps!

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