Quite possibly it is. If the timing belt has jumped a tooth, it will set a code for the cam sensor or the crank sensor. Timing belts not only wear from mileage, but weaken and dry rot which can cause a belt tooth to break off due to age, which yours is 9 yrs old. It is made of the same basic material as the serpentine belt and dry rots, cracks, and frays over time. This is why yours is supposed to be replaced every 60,000 miles OR every 84 months(7yrs). So yours is actually 2 yrs overdue.
The other possible causes are a faulty crankshaft position sensor, which can throw a code for camshaft/crankshaft correlation out, or a short in the wiring harness.
So the timing cover should be removed and the timing belt inspected, the camshaft sensor wiring harness inspected for breaks, cuts or chafing and the crank sensor tested IF a fault code for the cam sensor returns.
In the meantime, I would suggest having the timing belt replaced when you can budget it. If the timing belt breaks on this engine
, it wrecks the top half of the engine and increases the cost of repair by about $2500.
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