Hall effect not pulling down to 0v

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mustansir
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Posts: 5
Joined: Tue Jul 17, 2018 2:27 pm

Hall effect not pulling down to 0v

Post by mustansir » Sat Jan 05, 2019 5:59 pm

Hello, i have a mitsubishi 4d56 16v, non starter, no live at injectors,crank sensor error codes, i cant get a read from crank sensor but just realised ive been testing it wrong it looks like its a inductive sensor ive been trying to get a read from it as a hall effect. Decided to check timing and realised the crank cog has many tiny teeth and a small gap with no teeth. Ive scope the cam sensor and it doesnt pull down to 0v, ive never seen one not pull down to 0. Any help would be appreciated, thank you.

Technician
TwoWaves
TwoWaves
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Joined: Thu Apr 24, 2014 8:32 pm

Re: Hall effect not pulling down to 0v

Post by Technician » Sun Jan 06, 2019 6:29 pm

Hello, Mitsubishi 4D56 16V ?

What model?

L200, L300, Space Gear, Canter etc!!!

mustansir
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Posts: 5
Joined: Tue Jul 17, 2018 2:27 pm

Re: Hall effect not pulling down to 0v

Post by mustansir » Mon Jan 07, 2019 12:45 am

its a L200 2.5d 16v, sensor pulls down to just under 1v not all the way to 0v.

mustansir
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Posts: 5
Joined: Tue Jul 17, 2018 2:27 pm

Re: Hall effect not pulling down to 0v

Post by mustansir » Tue Jan 08, 2019 10:25 pm

Any ideas?

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TwoWaves
TwoWaves
Posts: 417
Joined: Thu Apr 24, 2014 8:32 pm

Re: Hall effect not pulling down to 0v

Post by Technician » Tue Jan 08, 2019 10:43 pm

Check the sensor ground at terminal 87, it must read 0 V. Using a floating ground if not and try a ground on the engine block and battery earth. The sensor is switching so either a ground fault or supply fault?

mustansir
Newbie
Posts: 5
Joined: Tue Jul 17, 2018 2:27 pm

Re: Hall effect not pulling down to 0v

Post by mustansir » Tue Jan 08, 2019 10:58 pm

Thank you, will check and update.
I searched the forum before I posted, another user had a similar problem with a crank sensor on a mitsubishi, someone advised to fit a pull down resistor between signal and earth.

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