Low engine power

Tiny
DJWIZ
  • MEMBER
  • 2000 TOYOTA 4RUNNER
  • 18,277 MILES
. Changed spark plugs, ignition coils, spark plug wires, fuel filter, checked engine compression(results were: good(ok)compression), but still have low power. Could it be that I have a bad fuel pump or catalytic converter.
Monday, January 2nd, 2012 AT 2:24 PM

6 Replies

Tiny
DJWIZ
  • MEMBER
  • 4 POSTS
. Engine has 182779 miles, check engine light was on.
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Monday, January 2nd, 2012 AT 2:26 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If your light was on check for codes s that is probably the reason you have low power. One of your sensors are bad more than likely or a poor connection. Also check your fuel pressure
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Monday, January 2nd, 2012 AT 2:28 PM
Tiny
DJWIZ
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  • 4 POSTS
All codes were checked for related problems(ignition coil misfire #2 and #5), were fixed, possibly fuel pressure's low
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Monday, January 2nd, 2012 AT 3:11 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Is the MIL still indicating?
Did you check the fuel pressure?
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Monday, January 2nd, 2012 AT 8:38 PM
Tiny
DJWIZ
  • MEMBER
  • 4 POSTS
. MIL's not indicating; not as of yet, but also the gas(accelerator)pedal feels very loose(maybe not a good description); no passing power, gas pedal practically to the floor to pick up speed, and then revs high(about 3000rpms)to pick up some speed; doesn't maintain speed, especially on inclines or hills.
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Monday, January 2nd, 2012 AT 9:19 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Get a helper to help you check if the throttle is opened fully when accelerator is fully depressed. You could have too much slack in the throttle cable.
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Monday, January 2nd, 2012 AT 9:37 PM

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