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I've heard several theories as to why my check engine light is on and I'm wondering what the real reason is!

Tiny
KFWPHILLIPS
  • MEMBER
  • 2000 TOYOTA SIENNA
  • 163,000 MILES
The van sputters when idling, accelerating, and traveling at freeway speeds, especially when it is cold outside. Once the van warms up it runs a lot better, but still sputters a little. The check engine light has been coming on, and we've replaced a few things, but the light keeps coming back on the the sputtering continues to worsen. The current code is for a 'cylinder 2 misfire' or 'random misfire.' We just bought this van and the check engine light came on within 48 hours. We don't know the last time anything has been replaced, but the spark plugs look good.
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Monday, November 21st, 2011 AT 5:32 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,716 POSTS
What code are you getting? Have you checked compression in cyl 2? Have you checked to make sure fuel pressure is within spec? Is it the same code that comes back? Good spark to cylinder 2?
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Monday, November 21st, 2011 AT 5:36 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the sparkplug and injector for no.2 and also the CPS
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Monday, November 21st, 2011 AT 5:53 AM

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