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Sounds like someone installed the lights/harness too close to the PCM or its harness. That can induce electromagnetic interference which skews sensor readings, especially those on VREF.So update guys, I just got my NEW engine andddddd BAM. Low PRESSURE WARNING!!!!!
What is going on ???
I have a little theory that it going through my head and would like to see what y'all think.
Whenever I drive I like to flip my third aux switch and put on my LED foglights (as seen in my picture). When the dealership test drives my truck thoroughly, they do not do this and the issue never happens for them. As soon as I drive off the lot with this switch on, I get the issue in about 10-20 min. Could it be a faulty wiring situation??
Sounds like someone installed the lights/harness too close to the PCM or its harness. That can induce electromagnetic interference which skews sensor readings, especially those on VREF.
All I can offer you is good mojo for the futureYep so on the ride home I kept all of my auxiliary switches off and same thing happened.