i have an 89 dodge ram 318 with throttle body that runs very rich with little power. the plugs are sooty black. the engine has a throttle body that holds the the 2 fuel injectors. i just paid a so called mechanic $640 to replace 2 fuel injectors and a fuel pressure regulator. now the truck runs worse than it ever did. he said i dont know. it isnt throwing any codes. after 3 mos that the so called professional mechanic had it, i brought the truck home. it runs like it is choking itself out with unburnt gas smell coming from exhaust and engine. plugs are new and wires 3 yrs. old. dist. cap new. truck ran fine until it sat out one nite in the winter after driving it in a misty rain. i was hoping someone out there might have a clue as to what i can do to fix this. i have a good understanding of engines up until cars became computerized. what controls air/fuel mix on these new ones. in the old days i would just slap another carb on it and be done with it. any help greatly appreciated. thank you.

'94 Plymouth Voyager Minivan: Water has began coming inside the interior compartment when it rains, collecting on the driver's side floorboard near the center. The two times that we noticed it the van was parked in the driveway. I took it to a glass specialist and he advised no leaks around the glass but feels that the leak is coming from the space between the fire wall and the interior of the vehicle where the wipers are mounted. He described it as some type of plastic piece/cowl that has a seam with waterproofing or caulking to prevent moisture from getting thru the seam. He also said he thinks it is coming in around the center section of this piece. He said he checked the drain holes and they are o.k. but feels the caulking around the seam has failed and is allowing the water into the interior and running down under the carpet and padding. He recommended taking it to a dealer or an auto body specialist. Is there a way to waterproof the seam that he is referring to without alot of trouble or should I bite the bullet and take it somewhere. Thanks, RRCOP