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98 Taco bogging out

Tiny
IM NEVER BUYING ANOTHER TOYOTA
  • MEMBER
  • 1998 TOYOTA TACOMA
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
I have a 98 4x4 3.4L V6 toyota tacoma that keeps boggin out randomly during day to day driving and regularly during cold start up. I replaced the TPS MAFS and checked for vacuum leaks and the truck isn't throwing the CEL. I don't know where to go from there so what next
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Thursday, January 13th, 2011 AT 3:51 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it
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Thursday, January 13th, 2011 AT 4:20 AM

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