When engine gets hot starts bucking at 70mph. Code p0340 keeps coming up. Changed fuel filter, plugs and wires, camshaft sensor, vss sensor and all four 02 sensors. Had cats checked at muffler shop. They checked OK. Any ides what to check.
P0340--Camshaft Position Sensor Signal Error Fault
Check the wiring from the CPS connector to the ECU's connector. Check both connectors for corrosion, overheating or anything that would hinder a solid electrical connection.
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