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Subject: "crank sensor problem" Previous topic | Next topic
bnissonJan-09-11 12:51 PM
Member since Mar 31st 2010
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#132916, "crank sensor problem"


          

i get these readings with the ignition ON:

At harness that plugs into sensor:

power- 8.9 v
ground- does show continuity
signal- 4.96 v

at the ECU:

Pin 32 (crank signal input) - 4.96 v
Pin 44 (Power output to crank) - 8.9 v


Perfect.

the problem is when i plug in the sensor to the harness, the signal output changes from 4.96 v to .08 v at the harness as well as the ECU

I have tried two sensors: the one in the car before i lost spark and a new one i purchased a few days ago.


What to do?

  

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halfasss101Jan-12-11 05:01 PM
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#132949, "RE: crank sensor problem"
In response to Reply # 0


          

I don't know if this is a continuation but what happened? Just didn't want to start one day or what?

Originally posted by bullettdsm Recommendations are that you get drunk and sit idly by to stare at your car while nothing happens to it. End results seem to be that you will be happy.

  

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Global Ruler Of All ThingsDarkOneJan-12-11 10:03 PM
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#132953, "RE: crank sensor problem"
In response to Reply # 0




          

Originally posted by bnisson
the problem is when i plug in the sensor to the harness, the signal output changes from 4.96 v to .08 v at the harness as well as the ECU I have tried two sensors: the one in the car before i lost spark and a new one i purchased a few days ago. What to do?


The signal will go high or low depending on where the crank is in relation to the magnet in the sensor.

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'95 Eclipse TurboGS (garage deco)
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'97 Talon ESi-T (poor impulse control)
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halfasss101Jan-13-11 06:35 PM
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#132955, "RE: crank sensor problem"
In response to Reply # 2


          

Exactly. Try cranking the motor and see if it changes when the crank is in different positions. Test coil pack and cam sensor resistance with specs in the haynes manual.

Originally posted by bullettdsm Recommendations are that you get drunk and sit idly by to stare at your car while nothing happens to it. End results seem to be that you will be happy.

  

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megaskillzJan-14-11 02:05 PM
Member since Oct 12th 2008
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#132958, "RE: crank sensor problem"
In response to Reply # 3




          

Originally posted by halfasss101
Exactly. Try cranking the motor and see if it changes when the crank is in different positions. Test coil pack and cam sensor resistance with specs in the haynes manual.


I would also like to add before you crank your engine disconnect the ignition wires from the coil. While cranking, your voltmeter should fluctuate from 0.4 to 4 volts. This is with the connector attached to the sensor and backprobing the signal and ground on the connector.



98 GS manual - ATMT completed
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