Camshaft Sensor Voltage

[genther]

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.

[Carl48]

what year PT and type engine ?

[genther]

2004 2.4L Turbo

[Cat22]

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.

[pdbrains]

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.

[ptcruisersteve]

Originally Posted by pdbrains

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.

[pdbrains]

Originally Posted by ptcruisersteve

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.