Question

I have a 1997 Ford F150 4.6L with the engine codes P0302, P0351, P0352, P0354, and P0308?

Answer 1

You probably have multiple faulty ignition coils. You should start by inspecting or replacing ignition coils #1, #2 and #4.

P0302 FORD - Cylinder 2 Misfire Detected = https://www.autocodes.com/p0302_ford.html

P0308 FORD - Cylinder 8 Misfire Detected = https://www.autocodes.com/p0308_ford.html

P0351 FORD - Ignition Coil 'A' Primary/Secondary Circuit  = https://www.autocodes.com/p0351_ford.html

P0352 FORD - Ignition Coil 'B' Primary/Secondary Circuit  = https://www.autocodes.com/p0352_ford.html

P0354 FORD - Ignition Coil 'D' Primary/Secondary Circuit  = https://www.autocodes.com/p0354_ford.html