korrupt1
+1y
hmmmm...FI SHOULD lean itsekf out...btu then again I was running super rich too...I started with the basics, new plugs, wires, air filter( i went to a open element...which is currently being made into a CAI...details to come but pretty easy really)
I had a huge rip in my original intake tube so that got replaced, checked for any and all leaks within my hoses and gaskets and repaired...and have gained a ton of mileage too....I was getting about 200 a tank so pretty lousy in the economy dept...now I consistently get about 270-80 per 10.5 gallons...I have managed to squeeze 300 out but I was riding pretty thin on fuel I believe (my gauge is slightly messed up)
Thats where I would start....your timing is more than likely dead on so i wouldnt worry too much about that....but you have excess air getting in somewhere...so your computer is TRYING to compensate by dumping excess fuel in to make up for the defiency...there is a lil black box looking thingy (dont know what it is or what it does...but mine has it...for what ever it does...I had a small leak there...located center rear toward firewall of the truck....still no idear what it really does...but I know I had a leak there and misc hoses had over the years rotted up pretty good....I would suggest getting you a bunch of hosing (different sizes and about 4ft of each...worked for me in my case) replace anything that even looks crappy (stay away from the one from the brake booster to hard line on the firewall!! check valve in there and your brakes..will work but they go nuts from time to time...just found that out myself! Thank you mikey and toddzda for pointing that out, LOL!)
I would really closely inspect you intake tube, maybe just replace it with a cheapo one from pep boys or autozone or oreillys (about $20 for the flexible one which is what i got going right now...working great!)...like I said...mine had a HUGE rip in it...almost 3/4 of the way thru so it was ready to fall apart...and your MAF...meh...dunno if that having a issue yet...but couldnt hurt to clean it...just be careful...dont wanna rip the lil screen inside....I used a soft bristled toothbrush and that worked pretty good...time consuming but worth it in the end