2.6 fi bogs looses power, ideas?

My 2600i fuel injected is starting to bog down on me. More than a feather throttle under load bogs like mad until 2.5-3k rpms when it takes off like normal. Idles fine, 1st starting and 5th under load (going up a hill for instance) are the worst. 1st is straight up bog like it's not enough fuel or air, 5th jerks and shudders like it's running out of gas. Worse if it's warm out (below freezing it is harder to notice and only bogs for a sec instead of 5)

Any ideas? will be checking the plugs this weekend, do we have a maf sensor? TPS sensor? anything else to check?

having same issue man please let me know if you find out anything i will do the same

Might be your ecu, my b2.6 did the same thing untill I found out that where the wheel well had rusted out on the passenger side had left a hole to my ecu, causing erosion to my ecu. It seems alot of old body bravos have this problem.