My engine will cut out while it is ideling or when crusing down the road at a steady speed. By cutting out i mean the engine will act like it is not firing on one cylinder. I have checked all the vacuum lines, timing, changed the spark plugs and wires. I have checked the archives for past posts about a problem like this and because of it i have also checked the TPS and it is ok. I have a 88 22R 4 speed tranny. Any suggestions on what it could be?