Codes P0132 and P0352?

Tiny
REAPER0927
  • MEMBER
  • 2010 FORD TRANSIT
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
Code is for O2 Circuit High Voltage (Bank 1, Sensor 1). Can someone guide me where this sensor is located? I also have a P0352 ignition coil B primary/Secondary Circuit. I have no idea what this means or what the issue is. Can someone please help? By the way it is a Transit Connect XL.
Sunday, November 12th, 2023 AT 10:51 AM

8 Replies

Tiny
AL514
  • MECHANIC
  • 4,692 POSTS
Hello, the B1S1 oxygen sensor is the front sensor, before the Catalytic converter, I'll post a diagram showing its location, the P0352 is the number 2 ignition coil, it may have failed, try swapping the coil to a different cylinder and see if the code changes to another cylinder. If it doesn't change, next move the spark plug to the cylinder you moved the coil to and see if that changes the code. The ignition coils are monitored by the engine computer, I'll post some info on the code, but swapping some components around can help determine what the fault is before buying new coils. This is a 2-wire coil, so you can check the resistance of the coil and compare it to another one and see if the resistance is low. Here's a guide as well for checking ignition system components:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

https://www.2carpros.com/articles/how-to-check-for-ignition-spark
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Sunday, November 12th, 2023 AT 12:31 PM
Tiny
REAPER0927
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Thank you for the info. I failed to mention I installed new coils, new spark plugs and problem still says coil 2. I have also swapped the coils and still says coil 2. I am stumped at this point.
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Sunday, November 12th, 2023 AT 12:35 PM
Tiny
AL514
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Okay, well, here is the location of the B1S1 oxygen sensor, make sure to check the wiring, that it's not melted to the exhaust or anything like that.
Are you getting spark from the number 2 coil? Here is a guide to check spark. And do you still have the old coils? You can see if one of them has low resistance compared to the others, if you have no spark from the new coil that's setting the code, you can check for 12-volts with a test light at the coil connector with the key on. If power is present, you can next back probe the other pin of the coil connector and watch for the test light for a dim flash, this means the coil is still being controlled by the PCM. Sometimes when these two wire coils short out, they can burn out the driver inside the PCM due to excessive current flow. But verify it has power first. The video below is very helpful when checking with a test light. As well as a couple of guides to help with checking the resistance with a multimeter.

https://www.2carpros.com/articles/how-to-check-for-ignition-spark

https://www.2carpros.com/articles/how-to-test-an-ignition-system

https://www.youtube.com/watch?v=mDKj19Hnhd0&t=18s
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Sunday, November 12th, 2023 AT 12:49 PM
Tiny
REAPER0927
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  • 4 POSTS
I just checked spark and the spark is good and strong. I am getting 12.3 VDC.
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Sunday, November 12th, 2023 AT 2:01 PM
Tiny
AL514
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Are you getting good spark on all the coils? And have you tried swapping the plugs around as well? I know it's a pain.
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Sunday, November 12th, 2023 AT 3:12 PM
Tiny
REAPER0927
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Yes, all 4. I even put the other 3 on coil #2 harness and I’m getting good spark. Then I put #2 coil on all the other harness and getting good spark.
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Sunday, November 12th, 2023 AT 3:13 PM
Tiny
AL514
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If you have swapped the plugs around as well, does the number 2 plug come out looking fouled out with fuel, Im just asking because I believe on these there is intentional shutdown of the fuel injector with that code set. Its to prevent damage to the Catalytic converter. Im just going through some different service info here. If you clear all the codes here, how fast does that coil code come back?
Looking at the code criteria here, this code sets due to the PCM not seeing some type of pulse feedback when the coil is fired, so its definitely something to do with the primary side of the coil or control circuit to the PCM. There is a flow chart you can go through if you want, Ill post that for you. But having 2 faults here, Im wondering if the coil control wires run through a bulk connector as the oxygen sensor circuit, or if those pins into the PCM connector are close together. Ill take a look and see if theres anything in common there.
What is the voltage for the B1S1 oxygen sensor signal? Can you read that live engine data PID on your scan tool?
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Sunday, November 12th, 2023 AT 3:37 PM
Tiny
AL514
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Here's the 2 connectors that the B1S1 oxygen sensor signal wire passes through to the PCM, one changes wire colors, but I would check these connectors C110 and C1045 for any corrosion that might be shorting out the signal wire to a voltage feed, setting that code.
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Sunday, November 12th, 2023 AT 5:18 PM

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