Slow c280 v6

[202OXON]

iv had the car for around 8months, when first getting it went like a rocket,
had a few problems last week with maf sensor so changed that then it was the temp sensor and now it has intermittent power.
sometime on putting ur foot down it pulls like a train and others its just doesn't pull like it used to putting you back in the seat? any ideas what else could be causing my problem?
also it has no Cat anymore as decided to cut them out, dnt know if that would make any difference back pressure?

[zmatt]

Well our cars have an electronic throttle so it could be the e throttle is messing with you. Also, are you sure you are in a good gear when you punch it? If you are doing say 30 and you are in 4th then when you put your foot down you wont be blowing anybody away, it will have to downshift into 2nd before you take off.

[Yujin]

Any check engine lights?

[202OXON]

yea i see what your saying but even when it changes down gears it very jerky and does'nt pull the way it used to, iv also noticed when the car is cold first thing in the morning it wont want to rev over 4thousand revs for the first gear, and there are no warning lights being shown on the dash

[taz069]

So the car was used when you got it? First and foremost always do the most basic of things. Do a tune up when was the last time the plugs were changed? I had an experiance once ran some platinum plugs for 3k, was damn awsome then it sucked rocks! Had to go back to regular plugs. That fixed the prob. Always check the gap!! Never and i mean never take a plug out of the box and screw it in!! How about the wires any black/dark brown spots on them?? Possiblie going to ground. Hope this helps some. Let us know.

[202OXON]

il start right from the beggining, i was away one weekend and the car kept stalling and hunting when the car was stationary, so the car went on diagnostics and found nothing, so did a little home diagnostics to find the catalistic convertas maybe the cause so cut them out encase they had collapsed and had blocked exhaust, changed all the 12 spark plugs, then changed the maf sensor, seemed to sort it out, the next week i notice it very down on power so i changed the temp sensor that cured that, now its just very down on power around 4k on the revs and when cold it miss fires at 4k for a couple of seconds then wont cause me any problems all day apart from it being under power at time and some times wanting to be the opposite and wanting to pull my face off!
im going bold over this!