2001 Lexus IS 300 PROBLEMS ACCELERATING

2001 LEXUS IS 300
112,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MARK JENSEN
  • MEMBER
  • 1 POST
The harder I press the accelerator the less responsive it becomes; therefore, I have to press the accelerator very lightly to get it to take off. Once it takes off it drives relatively smooth until it hits about 3500-4000 rpms were it begins to bog down significantly.
Nov 29, 2008 at 2:21 AM
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MASTERTECHTIM
  • ✓ASE Certified Mechanic
  • 4,750 POSTS
  • ASE Certified Mechanic
likely problems are either low fuel pressure or a faulty mass air flow sensor. try disconnecting mass air flow sensor and then drive. a lot of times the car will run a lot better with is unplugged, if its bad and you should be able to get better throtle response. also try getting the computer scanned (autozone does it for free) then get back to us with the codes you get.
Nov 29, 2008 at 5:28 AM
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