D16Y7 block
D16Z6 head/im/tb/dist (Y7 dist internals)
stock P28 with Boomslang harness
new fuel filter
car was very low on gas when I did the swap, so I put some a new gallon of gas in it today

Before the headswap, the car ran fine, no problems.

Now, it is backfiring. I finally got it to run right earlier today and took it on a drive for a few miles, light driving. Ran fine but low power.

Pulled the plugs and # 2 and 3 were fouled really bad.

Put new NGK's in gapped to .044 (same as the new plugs that I put in when doing the head swap). Started it up and it was backfiring every few seconds. Didn't do it until I changed the spark plugs out. It has new plug wires. Redid the timing just to make sure it was on, and it is good.

Running on Z6 injectors/rail/fpr.

Any way I can clean the injectors without running injector cleaner through it? I can't drive it as it is so the injector cleaner won't help me now.

Ideas?

PROBLEM FIXED: New plugs were gapped .005" too much. Runs like a champ.


Modified by Aquafina at 10:02 PM 8/3/2007