02-17-2023, 07:57 AM | #1 | |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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P0020 Camshaft Position Sensor Location.
My car is throwing a P0020 error code. It's in relation to the camshaft position sensor (bank 2). I've noticed a thread in here showing the sensor location is towards the back. But a few google searches and YouTube videos are showing me the VVT sensors are located in the front. Both intake and exhaust, which makes a total of four sensors. I'd just like to get a clearer understanding of location and maybe even a part number. Any input would be great.
Here's a video showing the sensors are in the front. Is this correct? Last edited by LuvMyV6; 02-17-2023 at 08:15 AM. |
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02-17-2023, 08:15 AM | #2 | ||
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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Quote:
Here's another video showing location of sensors. |
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02-17-2023, 10:27 AM | #3 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,175
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P0020 is camshaft INTAKE bank 2.
there are 4 camshaft sensors. Intake and exhaust bank 1, intake and exhaust bank 2. I'll hit the repair manual and see if it says where bank 2 intake is located. So it says rear of bank2 cylinder head. Exhaust is also back there. May help: Exhaust Bnk 2 wires: green/brown, black/brown, violet/blue Intake bnk 2 wires: yellow, white/blue, black/violet From what I can tell, the sensors are arranged vertically. So intake should be the upper one, exhaust will be the lower. Bank 2 is the left side of the car (driver's side in USA) Last edited by ctrlz; 02-17-2023 at 10:44 AM. |
02-17-2023, 10:52 AM | #4 | |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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02-17-2023, 11:51 AM | #5 | |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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02-17-2023, 01:11 PM | #6 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,175
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I see green and purple (violet) wires disconnected there. Are you sure that is not exhaust?
Just double checked the schematic in the repair manual, and intake colors are as above for the wires. I may have the upper vs lower wrong. Maybe upper cam is exhaust?? just checked the repair manual. Upper cam is intake. Last edited by ctrlz; 02-17-2023 at 01:22 PM. |
02-17-2023, 02:08 PM | #7 | |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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02-17-2023, 03:44 PM | #8 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,175
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I would think the cam position sensor would be the same part # for both exhaust and intake cams.
There are probably metal splines (or just one spline) on the cam and the sensor uses a magnetic field to sense it going by (Hall effect sensor). The 3 wires are power, ground, and signal. |
02-17-2023, 07:41 PM | #9 | |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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02-18-2023, 07:30 AM | #10 |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,175
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Still wondering why I see the wire colors for the exhaust side sensor in your photo. Did you have to disconnect both to work on it?
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02-18-2023, 09:59 AM | #11 |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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That's a good question. I'll take a look under the hood again today. Could it be the front are intake and the back is exhaust? Would you happen to know the location of the sensors on the underside? Would they be vertically underneath?
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02-18-2023, 10:47 AM | #12 |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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Here we go. I didn't observe hard enough the first time. Looks like intake sensor is directly next to it on the left. I had to take off that material cover on top of intake manifold in order to see it. I think these are the colored wires you're referring to.
Last edited by LuvMyV6; 02-18-2023 at 11:29 AM. |
02-18-2023, 11:27 AM | #13 |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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I threw my old exhaust sensor back in since I was only getting an error code for intake. If it fails, I'll throw another brand new sensor at it. Engine is purring like a kitten right now. Feels smoother
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02-18-2023, 11:46 AM | #14 |
Drives: 2017 1LT Camaro Join Date: Jun 2019
Location: Columbus, OH
Posts: 52
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My original symptoms were rough idling, sounded like my V6 had high performance cams. At one point, after driving aggressively on the highway, my car felt like it was accelerating even with my foot on the brake. Driving in a 35mph zone, my car wanted to push 45. Backing into my driveway, my car wanted to reverse fast. Could this have been from too much fuel and not enough air? Maybe vice versa?
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