P0340 DTC Changed Cam Pos. Sensor, and light still there. HELP!

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DarkShadowGT

Founding Member

Oct 16, 2002

177

0

16

Las Vegas, NV

Dec 9, 2005

#1

• Dec 9, 2005

• #1

Well the SES light came on in the dash of my Mustang. According to the code it had a Camshaft Position Sensor Circuit Fault. I changed the CMP and reset the computer and after a little while it came on again. I just changed the Spark Plugs and TPS but the P0340 code was still on before the changes.
Thank you

 

Superhereaux

chicks make me feel inadequate

Founding Member

Jul 30, 2002

538

3

59

South Texas

Dec 9, 2005

#2

• Dec 9, 2005

• #2

might want to check the connection for corrosion

 

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DarkShadowGT

Founding Member

Oct 16, 2002

177

0

16

Las Vegas, NV

Dec 9, 2005

#3

• Dec 9, 2005

• #3

Superhereaux said:

might want to check the connection for corrosion

Click to expand...

The connections are all fine. no corrosion.

 

85 Coupe 5.0

Founding Member

Dec 18, 2001

817

2

16

Kansas

Dec 10, 2005

#4

• Dec 10, 2005

• #4

just because the code refers to the CMP doesn't mean the CMP is bad. Basically that code is telling you that it sees a problem with the sensor or circuit that operates the sensor.

Being that you've already changed the sensor, next step would be to get out the wiring diagram to that sensor and start checking continuity in the circuit. i would also briefly look under the hood for any signs of pinched/burned/damaged wires in the harness that the sensor wires run into.

 

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DarkShadowGT

Founding Member

Oct 16, 2002

177

0

16

Las Vegas, NV

Dec 12, 2005

#5

• Dec 12, 2005

• #5

Okay well i found out thAt its the pcm's fault. it may have to be reflashed or even replaced. I did a pinpoint test and the entire circuit was fine. Anyone know homw much it would be to have it reflashed or even replaced?