93 xlt 580. Only runs on 2 cylinders sometimes at cold. Change plugs and works sometimes.. Not always same cylinder.. Any way to check stator,coil?

SOURCE: Check engine light comes on. p0171 and p0351 codes found

From Lusty Kid:

I know the economy is bad, but change all of the plugs. Check your PCV Valve hose, 150 rottens them out allowing air to be sucked in, thus all kinds of codes.

Depending on mileage. Dismount the EGR valve and clean passages. If you are really good dismount the throtle position sensor body and clean out passages with Choke Cleaner., dismount where the EGR valves connects to the engine, clean out passages. Also check the hose thats behind this mounting to ensure is not clogged. If clogged clean it out. If not replace it. Is about 1.5 ft. long, connects to the PCV Valve Hose.

When is the last time you change your harness. Can't remember??? Replace it. Good Luck

SOURCE: 2000 toyota tundra #5 cylinder misfire

i think #5 is on driver side the front one....

SOURCE: 1998 Cavalier No Spark in cylinders 1 & 4

ignition mod. grounds,pcm or timing belt could all be it but, I would have to look at timing first.

SOURCE: Misfire of cylinder 2 & 5 on 04 Buick LaSabre Custom

Ok this may be something smal that may be simple to fixs; your plugs are in the wrong cylinder?

Check Your gap size .060 (In thousandths of an inch)

Im not sure of the size of engine please look below for your make?



Fig. 3.8L VIN 1 Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system



Fig. 3.8L VIN K Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system



Fig. 3.8L (VIN 1 and L) Engines Firing order: 1-6-5-4-3-2 Distributorless ignition system

Fig. 3.8L (VIN K) Engine Firing order: 1-6-5-4-3-2 Distributorless ignition system
I hope that this help!

Ronny Bennett Sr.

• 6988 Answers
• Posted on Nov 11, 2009

SOURCE: 2003 kia # 3 misfire/ runs rough

Replace the coil for number 3 cylinder.