My 88 pickup 22R-e, 260,000 recently began running very sluggishly; no first gear acceleration from a stop and I used at max third gear...it turned out my MAF unit was bad and was replaced. It ran all but normal for awhile during the last cold months of the season, but as it's warmed up outside I'm noticing a power loss over time. It's not as bad as it was with the bad MAF, but it's barely drivable on the highway (third gear up till 40,45mph (3200-3500 rpm), i'll shift to fourth and gain no speed, often times losing speed.) Is there something that could have gone wrong with intake where it ran much better (quicker acceleration, better gear to speed ratios) when it was very cold outside? I am pushing 33x12.50 grabber mts on 10 inch rims, stock gears, but the lack of power is astonishing.
