1991 FORD TRUCK O2 SENSOR

  • Tiny
  • napier.scott
  • 1991 Ford Truck

Engine Mechanical problem
1991 Ford Truck 6 cyl Four Wheel Drive Manual

can you bypass a upstream oxygen sensor? It a four wire with no cats?

Sunday, May 16th, 2010 AT 1:08 PM

1 Answer

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,305 posts

By law, no.

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Monday, October 25th, 2010 AT 7:27 AM

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