The truck recently developed a check engine light. It's a P0340 camshaft position sensor. The code will appear and then after a few drives it will disappear. I logged about 1000 miles of driving after I put the replacement engine in with no codes. Now any time I rev it over 3000 RPM the code will appear. I replaced the sensor. I inspected the harness. The RPM thing worries me that it's out of time but it runs fine and I verified the timing marks. I'm going to tear it apart again tonight to verify the marks a 3rd time but right now it's not making any sense. I would think if it has skipped a tooth the computer is going to see the timing discrepancy and throw the code at any RPM not just over 3000?
Strange P0340 camshaft position sensor code (1 Viewer)
- Thread starter Dominic Nicandri
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- Thread starter
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So I pulled them covers again. If the timing is off, it sure isn't visible to the naked eye. The crank mark is hard to see with the fan pulley in the way but I got the phone pretty much over the top of it. Right cam might be a hair past the T but it's not a full tooth off.
