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Camshaft position sensor?

Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
Where is the pcm located? The car sat for a few months in farmland, and the mouse had a field day with the wires, literally.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CHICADEES
  • MEMBER
  • 1 POST
  • 1999 CHEVROLET CAVALIER
1999 Chevy Cavalier 4 cyl Front Wheel Drive Automatic

Had my car checked out and the number shich means that the cam sensor needs to be replaced. Bought the cam sensor. And my husband is having a hard time to find where it goes. He found the old one on the top of the motor. Unplugged and can't find where it goes. Any help would be appreciated
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Assuming that you have the 2.4L


https://www.2carpros.com/forum/automotive_pictures/55316_99cavcmps_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_pc113_1.jpg


Just find an open harness on top, towards the front of the engine. It may have fallen into the cracks. But the harness is in the front of the cylinder head.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Sounds like a nightmare. The pcm should be right front of engine compart, passenger side. At the moment, I don't have a picture.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
Is it easily accessable? Also I noticed several wires connected to a believe a relay right under the air filter. Could that be the pcm?
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I don't know, I would have to look? Sounds like your in over your head, no offense intended.

You have to safely raise and support the vehicle, passenger side. Remove engine splash guard, to get at pcm. As far any other wiring, I'd have to look at it. You need a friend or somebody that knows about vehicles, that can actually look under the hood. I can't see anything from here.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
No offense taken. I know a little but not enough. Thank you for your time and help.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
I was informed that the cam sensor is controlled by the ecm and I would find the wires at the ecm. Problem is my buddy isn't able to make it to my place today to locate the ecm. Any idea where it would be and how would I access it?
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I've already told you where it is and how to get at it.

Does the starter crank ok?
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
TERESA4444
  • MEMBER
  • 1 POST
  • 1998 CHEVROLET CAVALIER
  • AUTOMATIC
  • 111,000 MILES
Starting rough. Engine felt like it was jumping out of hood. After about a month started losing power occasionally. Check engine light finally came on when starting. Coded crank sensor and cam sensor. Replaced both. Ran fine for about 20 miles on highway. Residential area 25mph. Lost power going up hill then stalled. Same thing all over with engine jumping, sputtering even backfired once. Coded same two codes plus ets off light came on. Replaced throttle sensor. No change. Will run fine for a few miles then starts all over again but now is shifting really hard also. Same two codes plus ets off light. Mechanic says he has no clue. Any ideas?
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
The starter cranks good, starts up good, and seems to run fine. I replaced the plugs and wires and the valve cover gasket and changed the oil.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Check to see if your engine coolant temp sensor is reading correctly on a scan tool to make sure your getting the real info from the sensor.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Sounds better than I thought. The cmp wiring at pcm is below.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
Have the fuel pressure checked first. Then check the motor and tranny mounts.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
CVEITZ2011
  • MEMBER
  • 9 POSTS
You're the man. Thank you very much.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
No problem, hope everything is going your way.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
NEOSTAN6
  • MEMBER
  • 1 POST
  • 1997 CHEVROLET CAVALIER
I want to know if the 1997 chevrolet cavalier 2.2 ohv mpfi has camshaft position sensor, cause here I got one like that and I can't see it and I have a cavalier 2200 ohv sfi engine that has it.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Item g on chart in first pic where the hole is on block is crank sensor. 2nd pic may be right
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You can also go to rock auto cataog online and it will show you a pic of it to make it easier.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)
Tiny
NELLY1
  • MEMBER
  • 4 POSTS
  • 1996 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 240,000 MILES
The car suddenly started, what sounds like to me, firing on an open cylinder and will not start. Acts like its 180 out when I try and start it. All cylinders show good compression(140+psi) replaced the cam and crank position sensors with no change.
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Friday, July 24th, 2020 AT 4:52 PM (Merged)

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