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Camshaft Sensor Voltage

 
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Old 27 Sep 2021, 04:19 pm
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Default Camshaft Sensor Voltage

Hi Guys,

The engine shut down at 70mph on I-95 (thanks). Error 0340 reported. Installed new sensor with no luck.

Checked voltage at the three wires at the sensor:
Black ground OK
Yellow 5 volts
Orange wire 5 volts

I found one reference that states on of the wires should be 10 volts.

Anyone have any input on this? Thanks.
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Old 28 Sep 2021, 10:40 am
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Location: Rochester, Michigan
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Default Re: Camshaft Sensor Voltage

what year PT and type engine ?
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Old 01 Oct 2021, 01:47 pm
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Default Re: Camshaft Sensor Voltage

2004 2.4L Turbo
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Old 01 Oct 2021, 07:22 pm
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Location: Los Gatos, CA
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Default Re: Camshaft Sensor Voltage

According to the manual for our 05 turbo, black is ground, orange is the 5 volt supply and tan/yellow is the signal that changes from 5 to 0 volts based on camshaft position.
I don't think you would ever see 10 volts.
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Old 05 Oct 2021, 08:55 pm
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Default Re: Camshaft Sensor Voltage

When the camshaft sensor goes the engine will still run but it won't go over about 2.2k rpm. Crankshaft sensor fail will cause engine to die and not start. Maybe crank sensor is bad? You have to check if you have spark and fuel.
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Old 16 Oct 2021, 04:13 pm
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Default Re: Camshaft Sensor Voltage

Quote:
Originally Posted by pdbrains View Post
When the camshaft sensor goes the engine will still run but it won't go over about 2.2k rpm. Crankshaft sensor fail will cause engine to die and not start. Maybe crank sensor is bad? You have to check if you have spark and fuel.
On one of my Pt Cruisers I have had the bad camshaft sensor not allow me to start the Pt Cruiser. I think it's depends on whether the camshaft sensor is shorted out or open.
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Old 22 Oct 2021, 03:53 pm
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Default Re: Camshaft Sensor Voltage

Quote:
Originally Posted by ptcruisersteve View Post
On one of my Pt Cruisers I have had the bad camshaft sensor not allow me to start the Pt Cruiser. I think it's depends on whether the camshaft sensor is shorted out or open.
That's true. If it shorts out it takes the 5v bus down and the car won't run. That's why you have to check if you have spark and fuel before you start replacing parts.
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