1992 2.2 Cavalier only fires on 1&4 cylinders

[c_russell]

Started in ony day and it would barely run. Checked for spark and only had fire in 2 and 3. Noticed plug wires being bad almost broken so replaced and still nothing. 1&4 cylinders run off same coil pack so I figured that would be the problem. Just put on a new coil pack and it still isn't firing on those cylinders. Has anyone had a similiar problem or know what the problem could be. I thought if it was the ignition module or crankshaft position sensor then no cylinders would fire?

[shakewell]

Did you pull the spark plugs out? They could be bad also. Cover all your simple bases.

[c_russell]

I guess I didn't technically check them but the plug wire should shock me if the motors running or spark against the frame

[shakewell]

Well it's either the ignition module or something really goofy then.

[anomaly_va_1976]

Originally Posted by c_russell

Started in ony day and it would barely run. Checked for spark and only had fire in 2 and 3. Noticed plug wires being bad almost broken so replaced and still nothing. 1&4 cylinders run off same coil pack so I figured that would be the problem. Just put on a new coil pack and it still isn't firing on those cylinders. Has anyone had a similiar problem or know what the problem could be. I thought if it was the ignition module or crankshaft position sensor then no cylinders would fire?

I wouldn't bet on that... coil pack is more likely... but I wouldn't rule out the ignition module.... spark plug insulators could possibly be cracked... have you physically inspected the plugs? Don't assume a brand-new coil pack cannot be bad, either... Just my .02 worth....