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Camshaft position sensor?

Tiny
JPARRA602
  • MEMBER
  • 2004 CHEVROLET CAVALIER
  • 2.2L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 190,000 MILES
Where is the cam sensor located on my car?
Wednesday, August 9th, 2017 AT 4:10 PM

65 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Here is the location of the camshaft sensor.

Component Location: On top left side of cylinder head mounted to ignition coil housing

I grabbed a diagram from for the crankshaft sensor. Check out the diagrams (Below). Please let us know what happens.
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Wednesday, August 9th, 2017 AT 8:36 PM
Tiny
JPARRA602
  • MEMBER
  • 9 POSTS
I have a check engine light on for camshaft sensor. And Amazon is the only place that has the cam sensor, but I cannot find any information on the location. Weird!
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Wednesday, August 9th, 2017 AT 8:47 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Hello,

Yes that is weird, I checked ALLDATA and PRODEMAND with no luck!

If you find it lease let us know.
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Monday, August 14th, 2017 AT 8:43 AM
Tiny
JR
  • MEMBER
  • 3 POSTS
  • 2004 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
05 chevy cavalier 2.2 DOC. Jumped time. Replaced all the timing parts. Had the head rebuilt. New crank sensor. Took out the catatlic converter. That helped it. Starts hard and getting a 340 and 341 codes. Cam position sensor? It has a miss at about 2500 rpm and no power. There are no other codes. Fuel pressure is a steady 57 lbs. Injectors all show a 11.7 resistance. Why is it getting codes for something it dont have? It idles fine just hard to start and no power.
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Which is it 04 or 05?
This ignition system does not use a conventional camshaft position sensor. The ignition control module detects when #1 0r #3 cylinder has fired on its compression stroke. The higher voltage signal is on the event cylinder. The icm sends cmp signal to pcm. You should have compression sense ignition.

Possible causes, low resistance in both the #1 and #3 secondary ignition circuits. High resistance in both the #4 and #2 secondary ignition circuits. Also, a faulty crank sensor signal can cause issues.
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
JR
  • MEMBER
  • 3 POSTS
I am sorry. Its an 04. Thank you for your help. I ask this same question at several sites and have one that is telling me its timing. The miss comes and goes so does that rule out mechinacal issues? I believe I am going to try changing the ICM first. I have an old one here but not sure if its good. Do you have a suggestion where to start with this? Agian thank you for your response.
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I can't diagnose without looking at it, and having the proper diagnostic tools. Replacing the icm may not fix it? Are you sure the timing is ok?
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
BOBOLYNNE
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET CAVALIER
Got fuel pump problems now another back yard mechanic says its not the pump on our 2002 cavillier because he flooded it he says. He find the problem we need a cam sensor. Could he be right. Before I banged on the gas tank and it started. Before we had to rock the car back and forth from the back then the car would start.A couple of weekends ago in a city 100 miles away from home I banged on the gas tank and then it would start. These things now won't get the car going. We bought a fuel pump yesterday at an auto wreckers for 140.00 Today someone checked our car and said it was a cam sensor near the gas tank. He showed me one from a firebird it looks the size of a sparkplug. The oil is low I'am going to get the car tuned up just as soon as we get it on the road. Working part time. Thank you for your answer I'am very grateful. Have a good day.
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
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Have the fuel pressure checked with a fuel gauge if its within specs-start here-BTW dunno where that fool got his cam sensor back there -there's no such thing back there with that-
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
PLWESTMO
  • MEMBER
  • 2 POSTS
  • 2001 CHEVROLET CAVALIER
Four cylinder two wheel drive automatic 135,000 miles.

Hello,

My car (2.2 liter) has a bad crankshaft position sensor. The only problem I have is that I do not know where it is located on my car. I have searched and cannot find it. Is there a diagram of some sort that I can look at or is there a detailed explanation somewhere where I can find the sensor location on my car? I have the same issue with the camshaft position sensor.
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Here is the camshaft and crankshaft sensor locations in the diagrams (below) Here are also some guides to help you see what you are in for when changing the sensors.

https://www.2carpros.com/articles/camshaft-angle-sensor-replacement

and

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

You may need to jack the car up to get to it. Here is a guide to show you how to do it safely.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Here is a camshaft sensor and crank sensor on Amazon for $39.00

https://www.amazon.com/gp/product/B000CGM7HQ/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=2carprcom-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B000CGM7HQ&linkId=95d3888e7b29f725f219085d404a3eaf

Cranks sensor is $29.00 for AC Delco , the good stuff

https://www.amazon.com/gp/product/B000C9NMUE/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=2carprcom-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B000C9NMUE&linkId=1b4789f6ae844aac5aa87958dc480de4


https://www.2carpros.com/forum/automotive_pictures/170934_cavalier_crank_sensor_1.jpg



Please let us know if you need anything else to get the problem fixed.

Cheers
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
PLWESTMO
  • MEMBER
  • 2 POSTS
Thank you. I found the problem it was the wiring harness at the connector. I fixed it and no more problem! Thanks 2Carpros, you guys are the best!
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
KDECICCO
  • MEMBER
  • 1 POST
  • 2001 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
2001 chevy cavalier 2.4L- I just replace the crankshaft sensor and the cam sensor yesterday, everything was fine for the first 5 min then the car has trouble in first gear and over 20. What could it be? Check engine light isnt on. Could the sensors just need time to kick in?
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
JDL
  • MECHANIC
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Why did you change the crank and cam sensor? Were you having problems before you worked on it? Did you check the wiring circuits before you replaced the sensors?
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Friday, July 24th, 2020 AT 4:51 PM (Merged)
Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
  • 1999 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
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Can I change the cam shaft sensor wiring harness?
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CARADIODOC
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As in it's damaged? The auto parts stores have a whole catalog with replacement connectors because they have become such a common problem. You can also snip one off a car in a salvage yard.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
  • 1999 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 109,000 MILES
I need to replace the pigtail to the camshaft sensor. Where are the wires located that I would splice the pigtail to?
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
JDL
  • MECHANIC
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How do you know? If problem is ref voltage--ground or signal, you need to find out.

The electrical connector comes apart, you may be able to use needle-nose pliars to squeeze contacts. The partsbook I looked at shows only connector, no pig tail wires. If you have a connector with pigtail wires just splice them in.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
The wires on the cam shaft sensor connector have been chewed by a mouse. I have the wire connector that connects to the cam shaft sensor. I just need to know where the wires to splice to the new connector are located and how would I locate them?
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
JDL
  • MECHANIC
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I've never seen that happen with a vehicle regularly driven, them varmints don't like that hot engine.

I can give wiring colors below, the wires go to the pcm. That's about all I can do, check the wiring harness for the proper wire colors. The info was for 2.2L engine.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)

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