What is wrong. tried cleaning fuel injector, changing spark plugs and wires. it runs fine in park or neutral but when in drive or reverce it sputters and sometimes stalls out
SOURCE: 95 Ciera Hesitates & stalls when warm
Change the IAC the idle air control. You may be able to clean it and put it back on.
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.
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SOURCE: 1989 oldsmobile ciera no spark unit cranks fine good fuel presure
most common cause of no spark is the ignition module located under the coil
SOURCE: 89 Cutlass Ciera stalls when stopped.
With a good air filter, and a good fuel filter you shouldn't really have any problems since the fuel pump is good. You could have a vacuum leak, this can be identified by using a can of carb. cleaner with the tube attached so that you can spray near & around your vacuum hoses & connections. If you spray near a leaking hose, or a cap, or connection that is leaking, the engine will slow or stall. Only spray a second or two & allow the engine compartment to air out between spraying as it is a flamable product.
Short of that, you could be looking at ta idle speed control motor/throttle position sensor.
Testing the vehicle with a vacuum gauge could assist in identifying any other issues such as exhaust or valves. Gauges usually come with instructions & just need to be hooked to an available intake port.
good luck.
Testimonial: "Thanks, 1Stan I will do as you say and see if I can isolate the problem."
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