My 94 Oldsmobile cutlass ciera failed HC (ppm) the MEAS was 97 and 52 I live in California

SOURCE: The windows in the 95 oldsmobile cutlass ciera won't work at all

maybe the wire is severed where the door (drver dr) pivots. thats what was wrong with mine. there is a rubber boot with crinkles in it that hold all the wires together. you can also try replacing the switch board that controls the wndws on the drvr dr. hope that helps.

SOURCE: Changing spark plugs on a 1995 Oldsmobile Cutlass Ciera

ALL YOU NEED IS 3/8 RATCHET WITH A 5/8 SPARK PLUG SOCKET.YOU NEED EXTENSIONS AND UNIVERSAL JOINTS TO GET TO HARD TO REACH PLACES.YOU NEED A SPARK PLUG GAUGE.YOUR SPARK PLUG GAP SETTING WILL BE. 0.060 THAT WILL BE FOR THE 2.2 AND 3.1 ENGINES.

Testimonial: "Thank you very much for your advice and time!"

SOURCE: 1991 olds Cutlass Ciera. 3.3l, failed the NO

Since your cat was replaced you should be looking at fuel problems...even gas cap seal....check fuel pressure,fuel regulator,and evap system.>canister or purge solinoid,o2 senser...high nox is caused by the cat or fuel problems on these engines...high pressure in the combustion chamber...lean condition>air leak on hoses,or high compression caused by carbon build up ...there is no EGR on this car so don't waste time looking for it...hope this points you to your problem

SOURCE: 1993 old cutlass ciera failed inspection for HC.

Install Full Synthetic Oil
New Exhaust Converter
New O2 Sensor
New Air Filter

SOURCE: 94 Oldsmobile Cutlass Ciera- stalling issues.

Sounds crazy but, check for bad injector[s] Wadski