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2000 Toyota Corolla Sluugish when cold

Tiny
RANDYJANEWAY
  • MEMBER
  • 2000 TOYOTA COROLLA
Engine Performance problem
2000 Toyota Corolla 4 cyl Automatic 152000 miles

Very sluggish starting from a stop at times, especially when cold. Just replaced plugs, cleaned throttle body, replaced air filter. Which sensor would cause this (tp, ect.)?
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Friday, July 24th, 2009 AT 2:17 PM

3 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Many sensors could cause it, but you should have a check engine light?
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Saturday, July 25th, 2009 AT 7:45 AM
Tiny
RANDYJANEWAY
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  • 2 POSTS
No check engine light. It only happens when cold and when just starting from a stop the first time; press on gas, and it takes a few seconds to respond.
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Saturday, July 25th, 2009 AT 11:42 AM
Tiny
MMPRINCE4000
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Measure fuel pressure with mechanical gauge and spark with a calibrated spark tester.

Sensors, like TPS, IAC, Coolant would set a code if out of range.
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Sunday, July 26th, 2009 AT 7:56 AM

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