As it states my number 2 cylinder is running rich enough to a degree that the plug is fouling out in a matter of days and causing it to not fire. It is only cylinder 2 and when I pull the plug it has a thin yet noticeable layer of black soot. Now I have seen this happen before on injectors which have stuck but not quite in this manner. I have swapped the injector from cylinder 2 to 4 and vise versa and saw no results, so the injector is ruled out. I have also considered that the plug wire may have a short and causing it to not give as strong or a accurate spark.

then again I have also considered the chance of my leaky valve seal to promote such occurrence from the mixture of oil/fuel igniting. I do have 18% leakage on cylinder 2 but the bottom end was just rebuilt,just slacked on the head for shipping was a pain.

Anyone who has been through this type of dilemma please shine some light on the situation.


The ignition system is stock minus the NGKbkr7e and NGK wires. Tuned on chrome with Precision 440cc injectors open dump and down pipe.

 

It's either the spark or the compression. Bend in/out the terminals on the ends of the #2 plug wire to be sure they are making good contact. The wire should make an audible snap when attaching to the spark plug. Check the terminals on the inside of the distributor cap, especially the one for cylinder 2. You may want to take a pair of pliers and carefully bend that terminal inward just a hair to make sure it is contacting the rotor. They are a little fragile so don't bend it too much.

 

do a compression check...... hows the car run?

 

I checked the cap already just didnt mention it. Its still in great shape. The plug wire does make the snapping sound when attaching to the plug.

Compression is a solid 210 across the board with the lowest being 208,highest 211. Runs great has its typical exhaust back fires from having no exhaust but other than that it starts,and runs good. Im going to throw in another set of wires after work today and see what that does for me.

 

Visually inspect the spark at the #2 wire either with a spark tester or:

Disable the injectors and get a new or known good spark plug. Wear gloves (welding gloves work great), preferably with latex or nitrile gloves underneath, and remove a spark plug wire from its plug. Connect the good plug to the end of the wire and hold the plastic deep-well tube at the very tip of the wire end with the threads of the plug touching bare metal on the valve cover. Have an assistant crank the motor while you watch the spark, carefully keeping all body parts away from the plug and car body. Different types of plugs have different colored sparks but usually a good spark is a thick, strong flow of bright pink or at least bright. Little blue or pink "lightning bolts" indicate a weak ignition.

If the spark is fine, check the injectors with a noid light. You can borrow a set from a parts store. Compare the flashing of the noid light on that injector to the flashing on another.

 

well I swapped in another set of wires,so within a few days of driving ill inspect the plug and determine if I just needed a new set of wires.