Wont accelerate passed 70-75 mph

Tiny
THE MUFFLER MAN
  • MEMBER
  • 1992 MERCEDES BENZ 190E
  • 258,243 MILES
And if I put it to the floor it starts to bog-out. Also, my dist. Rotor sits passed #1 cyl. Halfway to the next.

Compression good, new fuel filter, plugs, cap n rotor, fuel press. Good. I also adj. My air/fuel mixture and now it idles high. Start-ups fine idles great just too high and no misfires. PLEASE HELP THK YOU.
Friday, February 17th, 2012 AT 7:08 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You probably have to disconnect something before you adjust the idle speed-the idle speed should be controlled by the computer-also look for a vacuum leak
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Friday, February 17th, 2012 AT 8:57 AM
Tiny
THE MUFFLER MAN
  • MEMBER
  • 5 POSTS
Now it won't accelerate passed 35-45 mph, it also has hard starting when it's cold and I checked my manifold vaccum pressure and it fluctuates at idle and during acceleration, (vibrates).
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Saturday, May 5th, 2012 AT 9:38 AM
Tiny
MASSIMO
  • MEMBER
  • 12 POSTS
YOU PROBABILITY HAVE A CLOGGED CAT Y SEE THIS BEFORE ALSO CHECK FUEL PRESSURE AND MAKE SURE THAT THE RETURN LINE IS FREE GOOD LUCK AND ALSO IF IS THE ONE WITH TWO FUEL PUMP MAKE SURE ARE BOTH RUNNING
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Thursday, May 10th, 2012 AT 2:45 AM

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