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First of all, what makes you think an engine would start on only 1/2 of the spark plugs firing? Did the spark plugs you pulled from the one bank smell like gas? If so, you should have replaced the other bank, too. That is where I would start since you do have spark and it won't even start with gas poured in. Plus, I would double-check the spark plugs you already installed, chances are they may be gas fouled already. Just clean off the gas on those with some carb cleaner, let them dry a few minutes and put them back in. Let me know if they did smell like gas and if the other bank does, too. See if it starts now.
Thank you but I knew that, and am assuming its unrelated to the problem.
All of the plug wires are showing spark. Pulled plugs from front bank. All smell faintly of gas. None are gas soaked and/or fouled. Grounded one to top of engine, that plug shows good strong spark. Bought car land when I went to pick it up, engine started first turn of the key. Drove it out of lPO driveway, stopped it to change license plates. When I ktried to restart I had to crank it aseveral minutes, like maybe 4 or 5 minutes and drove home badly a distance aof 2 to 3 miles. Started similarly hard once in driveway and second attempt in lkdriveway, NOTHING. Had huge backfire when first trying to start and split the rear muffler. Cat has been removed. Any chance of plugged exhaust somehow? Any chance of weak spark or jumped timing? How to check for either?
You asked, fairly snidely, what makes me think the engine would start with only 1/2 of the plugs firing. Where did I say only half were firing? I did say I had REPLACED only the front plugs and wires. Doesn't have anything to do with the rear bank firing. Given what I saw with the front plugs and the PITA replacing the rears I did not do the rears.
Not answering. My guess is you don't have a clue.
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