current sync lost - pt cruiser 2.4

2001 CHRYSLER PT CRUISER
135,000 MILES
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CLHERRIOTT
  • MEMBER
  • 1 POST
Car will not start and scanner states current sync lost but am getting readings on cam sensor and crank sensor and according to the scanner both sensors are talking to each other. and the spark advance is 9 degrees but not getting any spark. plenty of fuel and the tps is reading good with good signals.
Please help.
Mar 12, 2012 at 11:25 PM
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CARADIODOC
  • CAR REPAIR CONTRIBUTOR
  • 34,309 POSTS
The two sensors are out-of-sync. First check the timing belt. If it jumps one tooth, the Check Engine light will turn on. If it jumps two teeth, the Engine Computer will shut the engine down to protect it. If it jumps three teeth, the open valves will be hit by the coasting pistons and be bent.

If the timing looks right, suspect a sheared-off key between the camshaft and sprocket. That lets the sprocket turn a little and makes the valve timing late just as if the belt had jumped.
Mar 12, 2012 at 11:32 PM
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