Throttle Position Sensor

TOYOTA PICKUP
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GCHASSEE
  • MEMBER
  • 1 POST
I've been having trouble getting my TPS fixed. There were three codes that popped up saying:
P0171 System was too lean (Bank 1)
P0172 System was too rich (Bank 1) and
P0120 Throttle; Pedal Position Sensor; Switch A Circuit
The mechanic I brought it to did some basic maintenance and it took the check engine light off for a day or too, but my truck still starts to idle and die if I don't give it any gas. Please Help.
Nov 6, 2007 at 10:07 AM
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BLACKOP555
  • ✓ASE Certified Mechanic
  • 10,386 POSTS
  • ASE Certified Mechanic
when it was replaced was it ligned up properly as the other one is? if its misaligned it can cause the car not to run properly thus throwing codes.
Nov 6, 2007 at 7:09 PM
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