Bad Idle
 

94 Civic EX. Stock 1.6 with 135,000 miles. Lately when I start it, the engine idle will go up and down a couple of times. Then idles just fine. But last night. Did the same thing. Started driving and the car just about died. Any idieas?? Ignition??

Thanks

RE: Bad Idle
 

sounds like an O2 sensor or mass air flow sensor. Get them checked out.

RE: Bad Idle
 

Check your distributor, cap, wires and plugs. If your O2 sensor went bad, you would get a check engine warning. Same goes for MAF sensor. IF either of those goes bad, you'll get the codes. Also, a bad O2 sensor, shouldn't give youa rough idle, you will run rich on fuel though.

RE: Bad Idle
 

I figured it was ignition. Has new plugs. But I'll go through and do cap/rotor and wires this coming weekend.

Thanks