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at 450 airstart rpm sensor - 10/26/2012 12:08 AM   
hboost


 

Posts: 45
Score: 100
Joined: 3/7/2003
Last Login: 5/25/2013
From: Miramar, FL, USA
Status: online 		How do I check if the rpm sensor is bad? i gapped the sensor with the blades using 3 post it note paper.
when i spin the turbine it wont read past 4k rpm. i have another at450 that will reach 6500-7000k on an air spin.
the ecu does not activate the pump due to the low rpms.
any thoughts
thanks
hector

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RE: at 450 airstart rpm sensor - 10/26/2012 12:17 AM   
siddus74



Posts: 1056
Score: 100
Joined: 6/29/2004
Last Login: 5/18/2013
From: Nottingham, UNITED KINGDOM
Status: offline 		Its a hall effect sensor ... mine went bad on my AMT Mercury with the same results (the air just keeps going, as it never reads a good rpm and continues the sequence)

You need a magnet and multimeter and google ....

Scott.


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siddus74


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RE: at 450 airstart rpm sensor - 10/26/2012 1:39 AM   
rcjetsaok



Posts: 1789
Score: 135
Joined: 12/11/2001
Last Login: 5/24/2013
From: LAGO VISTA, TX, USA
Status: offline 		Common problem... Order a new one and loctite the mount bolts.

Danno

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The Hobby Express - Jet Central Tejas

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RE: at 450 airstart rpm sensor - 10/26/2012 3:19 AM   
hboost


 

Posts: 45
Score: 100
Joined: 3/7/2003
Last Login: 5/25/2013
From: Miramar, FL, USA
Status: online 		i thimk i solved the problem. i checked my prfectly running at450 a d checked the gap of the sensor with the blades and gave me 2 post it note paper thickness. i went ahead and gave sames gap and now it read to 5-6500, i am tempted to started now but i think is too late. i will try in the morning.
thanks

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