99 TJ 2.5L with some issues. (try this again)
So I just put my TJ back on the road 6 months ago. It had been
sitting in my back driveway for 2+ years. there are a few things going on with it that i need opinions on. #1) it has no power (i know it's a 2.5l, but my YJ 2.5l had way more power) #2) mileage sux, getting about 16mpg highway (i know it has the aerodynamics of a mailbox on wheels, but still, should be 20-22) #3) CEL light is going on with a evap system failure code. i clear the code, but it comes back on, sometimes it goes off on it's own, then back on at some point. fuel economy seems better when it goes off on it's own, untill it comes back on. have replaced the gas cap already. #4) starts hard after it's been sitting for a while. i've read the posts about check valves and filters and regulators, and it's definetly acting like a loss of pressure, so now i have to figure out if it's in the regulator or check valve or injectors. #5) (this ones the biggest pain in my butt) between 2000 and 2100 rpm, if it's under any kind of load, like a slight hill, and i try to accelerate, the engine skips and bucks. feels like i'm running out of gas or skipping 2 cylinders. as soon as it hits 2100 rpm, everything's fine, if it's under 2000 rpm, everything's fine. it's like a switch. i havn't checked fuel pressures yet, i'm planning to get a guage today and do some of those tests. but wanted to get some oppinions first. |
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