I have a 97 civic ex coupe. I think the motor is a D16 series (I will get you specific info if it is extremely relevant) with 160k miles. I have owned it for about 2 years and I got it with ~136K miles. I am not sure about repair history before me, when I bought it, it needed CV joints and I have done regular maintenance , changed the oil every 3k miles etc.

Recently I started noticing that from about 2k-3k rpm the motor seems to bog down. I replaced the plug wires, the distributor and the rotor. A few months ago it also had a new air filter and spark plugs. There is no check engine light , and gas mileage has not suffered , still get around 30 mpg. The engine starts just like it always has - right away with no fuss, and idles at about 700 rpm.

I replaced the fuel filter last weekend and it helped somewhat, although it still 'stumbles' through 2-3k rpm.
I am thinking it may be the oxygen sensor, anyone know an approx price on that?

My fault i just realized i posted in the wrong forum.



Modified by stimrob at 2:23 PM 7/22/2008

 

I have the same "exact" problem. Did you get anywhere on yours? If so, could you please keep me up on what happens or happened if you figured it out. I just replaced the upper 02 sensor about 2 months ago, before it was doing this current thing. So I guess it could be the other one. Thanks. Jimmy

 

Yeah could u let me know what happend to your car, i have the same problem.