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Location of CAM sensor

Tiny
SHANEAUSTIN
  • MEMBER
  • 2007 CHEVROLET HHR
  • 2.2L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 101,257 MILES
My check engine came on and the code says cam sensor malfunction I have replaced the front cam sensor. During repair I removed the neg battery cable after replacing the front sensor I replaced the neg battery cable. After a test drive the check engine light came on again and the code that says malfunction of cam sensor returned where is the rear cam sensor located.
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Monday, December 16th, 2013 AT 2:36 PM

6 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
My info only shows one cam sensor for the 2.2L./Intake. The 2.4L shows two cam sensors, one for the intake, one for the exhaust.

What was the actual code #? Are there any drivability issues? I usually check the wiring circuit for the cam sensor, first. Three wire sensor, ref voltage--ground and signal circuits.

Usually, return is the ground for the sensor. Our normal database didn't show codes for this vehicle or I didn't find it? The database that we use was overhauled in the not too distant past, I guess it still has bugs?

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Monday, December 16th, 2013 AT 3:30 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Just wanted to show wire colors for cam sensor.
Orange wire is signal.
Dark blue wire is ref voltage--5 volts
Tan wire is low ref, usually a ground.

Any testing use a digital multimeter.
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Monday, December 16th, 2013 AT 3:47 PM
Tiny
SHANEAUSTIN
  • MEMBER
  • 3 POSTS
My bad its a 2.4 codes are aackp/cmp timing misalignment explanation aaecm detected the crank sensor is not aligned with cam sensor.
Probable cause
aa1 intermittent connection
aa2 failed crank or cam sensor
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Monday, December 16th, 2013 AT 3:50 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
In the picture, #s 4 and 5 are for the cam sensors, 2.4L engine.
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Monday, December 16th, 2013 AT 4:33 PM
Tiny
SHANEAUSTIN
  • MEMBER
  • 3 POSTS
Thanks for your help J.D.L
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Monday, December 16th, 2013 AT 4:38 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
No problem, hope you get it going your way.
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Tuesday, December 17th, 2013 AT 9:42 AM

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