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2005 135 optimax alarm

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frenchyp1

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I have a 2005 135 optimax. I get an alarm with one beep at idle and and the alarm icon flashes 4 times. The engine will run fine at speed but goes into a high idle after receiving this alarm. local dealer does not have and answer on what would be causing this.
 
idle increases to 1100 rpm from the normal 500/550 rpm. RPMs returns to back to normal if I shut the engine off. Runs normal except for the high rpm
 
So, in neutral the engine starts and then the idle jumps up. Does is stay constant or does it go up and then come down to 1100RPM?

Tracker valve diaphragm with a hole in it will cause this problem.
 
Once I get the alarm the idle jumps to 1100 in neutral and will idle faster when in gear. Turning off the engine seems to reset the issue until the alarm goes off again. Does not happen on a consistent basis
 
You will need to get someone with a diagnostic scanner to check your engine. Tracker valve leaks are consistent, and will not set an alarm. You have a sensor out of range.
 
frenchyp1 said:
I have a 2005 135 optimax. I get an alarm with one beep at idle and and the alarm icon flashes 4 times. The engine will run fine at speed but goes into a high idle after receiving this alarm. local dealer does not have and answer on what would be causing this.
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the problem must be neutral switch near gear cable lever,try open circuit or short circuit
 
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