My 550 seems to be lacking power. It's not missing or smoking abnormally and generally seems to run fine. But pulling my trailer up hills it's not as strong as it was. I could set the cruise at 60 and forget it. Now I drop a gear and can go no faster then about 45.
I pulled codes 1316, 1211, 1280. That points to icp so I changed that and it didn't make any difference.
Possibly the hpop is getting tired?
I can scan it with my AE but what am I looking for with it? I'm new to the AE and have only used it once.
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