1997 Honda Civic Auto LX hesitates

Bought this car a few months back, have replaced Ox Sensor in back o
radiator, plugs, dist cap and rotor, plug wires and fuel filter o
firewall. The problem is it will hesitate, like its not getting enoug
fuel, will sometimes backfire, usually happens around 2000 rpm. Pushin
accelarator doesnt increase speed untill it shifts down and then speed
up and runs fine without a problem. 192K on odo. Had it to dealer an
they replaced cat converter, no help. Any ideas? Also 420 code chec
engine light

 

Replace the 420.

Perhaps you be so kind as to report what the **** a 420 code is?

 

Have your dealer look up TSB 05-027. You probably have the "bad igniter
connections" problem outlined in that TSB.

There is also a Safety Recall out on your car for the throttle cable, item
# 99I002000. Might not be causing this problem, but it's worth checking to
see if this has been addressed.

 

Presumably he means "P0420". A surprising number of people think the first
letter and the first number don't mean anything.