check engine light
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New User
Joined: Oct 2006
Posts: 2
Likes: 0
check engine light
I have a 96 F150 with a 4.9 Check engine light is on the codes are P0135 that means heater circuit malfunction bank 1 sensor 1 P0141 is heater circuit malfuction bank 1 sensor 2 and P0155 is heater circuit malfuction bank 2 sensor 1. I changed all 3 02 sensors not the problem.Someone looked at the wires to the 02 sesors and said the meter showes no ground to the sensors.Someone else told me that ford put the wrong diod in the cumputer and that is whats wrong and i need a new cumputer and thats why there is no ground. I have seen other post with the same codes and nobody seems to have gotten the problem solved.I would appretiate any help. Thank You
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
The last few times these codes have appeared, a new computer was the answer. Bill (screen name "subford") could probably give you a lot more information and test procedures than I can. Hopefully he will read this thread and be able to offer you something else to try.
