TRUCK CHECK ENGINE LIGHT ON CAN NOT FIND CODES MEANING?

  • Tiny
  • modestov
  • 1989 Toyota Pickup
  • 155,000 miles

The engine is a 22R/carb no one knows what the code is. Code that is given is 31.

Monday, August 29th, 2011 AT 11:13 PM

2 Answers

  • Tiny
  • mhpautos
  • Expert
  • 30,495 posts

How was this code retrieved, does it have an OBD connection?

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Tuesday, August 30th, 2011 AT 10:26 AM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,812 posts

It means "Open or short signal in vacuum switches signal VSW1, VSW2, VSW3" These are EGR solenoids.

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Tuesday, August 30th, 2011 AT 1:18 PM

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