bad cats? - Power Hungry Performance Forum

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bad cats?

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1997 to 2003 F-150
4.2L, 4.6L, and 5.4L equipped F-150s.

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Sun, April 4th, 2010, 01:47 PM

907DAVE 907DAVE is offline

BROKE

Join Date: Oct 2009

Posts: 1,340

P1151 is basically a lean code for Bank 2 Sensor 1.

Have you changes that sensor yet?

A quick and easy way to verify it is the sensor is to switch it out with the O2 on Bank1. If the issue now is on Bank 1 then BINGO!

If problem continues on the Bank 2 side then I would be looking elsewhere.

Do you have a way of monitoring the O2 sensors?

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