My Brother-in-law has A 1993 Chevy Cavalier 2.2, cylinder That I amworking on for him. it started running really bad while he was drivingit. When he brought it over I checked for spark and cylinders 2 & 3are not firing. (cyl 2&3 are on the same coil) I check the coil byswapping it with the coil for cyl 1 & 4 and it test ok. I amlooking at the ignition module now, how do I test it and is there anything else that could cause this.
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Re: 1993 Chevy Cavalier 2.2 not firing on 2 cylinders
You can test it but removing wires on the coil. they should have same strength as 1 and 4. if they are weaker then you have a bad coil. if nothing happens your have a bad module.
if you want put the 1,4 coil on the suspected bad tabs on the module and see if spark is same strength.that should do it. you pretty much did the right thing is swaping with what testing equipment you have to work with.
its most likely a bad module though. very common. when you test something always have someone explain how its tested and how it works.
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Firing Order on 2.2 liter: 1-3-4-2
Cylinder number: 1-2-3-4 from passenger to driver's side
From the coil from fire wall to radiator: #1 coil 4-1 #2 coil 3-2
Good luck and this should help you get your car running 100% again.
it fires 1-3-4-2. The coil pack is marked 1-4, match them up with your cylinders, and you're good to go! Cylinder 1 is on the front of the engine, the side opposite from the transmission. Find your alternator and that's at cylinder 1.
The cylinder closest to the passenger side is number one. Firing order is 1, 4, 3, 2
Where is your coil pack located in reference to the engine? I need this info to give you accurate placement of the spark plugs.
The reason I'm asking this is because a dual coil fires BOTH plugs at the same time. If one plug doesn't fire right, the other won't either, even to a point that neither does. Kepp the coils where they are and swap the plugs and wires and see if you have a change. Let me know