[fox3r]

My car is a 1996 Blazer, 105k, recently tuned. I had the service engine light come on so I took it to Shucks and it came back with a P0101 error. Also noticed while driving that the rpms tend to jump up and down and it also feels sluggish (which just happened to day). It is really fine at any low speeds and accelerates fine, but I noticed it happening much more at higher speeds. For awhile now (month) there has been a rattling noise on start up and around 1200-1500 rpms (in different gears) that seems to be coming from near under the driver. Any info is helpful.