Error Code: P0340?

Tiny
DEEDEEDONALDS
  • MEMBER
  • 2009 TOYOTA LANDCRUISER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 105,000 MILES
I have a 1gr 2008 Toyota Landcruiser which I change the engine to a Tacoma Engine. I will really appreciate your expert advice-I have been battling with an Error Code: P0340. I just changed the Camshaft in the bank 1 but the code still came back. All wirings to the ECM is okay. I have severally changed the Camshaft Position sensor severally but all to no avail. The mileage on the car is 105,500 kilometers.
Friday, August 26th, 2022 AT 6:38 AM

21 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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The P0340 code says there is a problem with the sensor or the wiring not the camshaft timing so that good, if the sensor is good and the wiring is good then the only thing left is the engine PCM. Here is the location and how to change it out to fix the problem. Check out the diagrams (below).
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Friday, August 26th, 2022 AT 10:35 AM
Tiny
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But the mechanic and electrician are of the opinion that the wire reading from the Camshaft sensor get to the PCM/ECM when it was tested severally.

Why is the car bringing just the P0340? And just on Bank 1 alone.
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Friday, August 26th, 2022 AT 11:04 PM
Tiny
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Secondly, will it be possible for me to get a fairly used and tested working PCM.

Please see my car details below:

Car Make: Toyota

Model: Land cruiser (Jeep)

Year: 2008

Chassis Number: JTMHU09J484011171

Engine Number:
1GR0023440

I am in Nigeria.
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Friday, August 26th, 2022 AT 11:10 PM
Tiny
DEEDEEDONALDS
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My Car is a V6, I gr engine.
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Saturday, August 27th, 2022 AT 12:41 AM
Tiny
KEN L
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When they did the test did, they do a resistance to ground test? For the PCM I would check google or eBay and have the VIN number ready, let me know what happens.
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Saturday, August 27th, 2022 AT 12:05 PM
Tiny
DEEDEEDONALDS
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Chassis Number: JTMHU09J484011171.
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Saturday, August 27th, 2022 AT 12:09 PM
Tiny
DEEDEEDONALDS
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Hello Ken L, thanks a lot for your assistance thus far. I don't really know what you call the resistance to ground test. But I think the electrician tester on the car battery and touched the terminals of camshaft sensor socket, that's when he confirmed that the current runs to the brainbox/ECM of the car.
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Saturday, August 27th, 2022 AT 12:13 PM
Tiny
DEEDEEDONALDS
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I think the electrician used a multimeter to test camshaft sensor socket, I don't if this is what is called a resistance to ground test.

What I don't really understand is why it is just a P0340 that keeps popping up.
The car moves fine irrespective of this error code.

Can the ECM/PCM be responsible for this Sir?
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Saturday, August 27th, 2022 AT 12:28 PM
Tiny
DEEDEEDONALDS
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Ken L, one thing I notice is sometimes what I start the car, the check light (and 4long blinking) goes off and start off until I turn off the car and when I start the car again the check light will now come on.
The above happens once in a while. Other times the check light comes on immediately after I start the car.
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Saturday, August 27th, 2022 AT 12:54 PM
Tiny
KEN L
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We can only communicate over the web, a resistance to ground check is to make sure the wires are not touching ground anywhere, they can have a good connection but also be touching ground as well, this guide will help explain it better.

https://www.2carpros.com/articles/how-to-check-wiring

If all is good, I would replace the PCM.

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Monday, August 29th, 2022 AT 12:23 PM
Tiny
DEEDEEDONALDS
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Thanks a lot Ken. I also started that when I start the car sometimes the check light goes off and stays off all through the drive until I turn off the car then it comes on come on the next start of the car again. This happens once in a while.

What's your thoughts on this?
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Monday, August 29th, 2022 AT 12:31 PM
Tiny
KEN L
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If the PCM is bad it can be intermittent. But I had thought it could be the camshaft timing actuator valve; they can get clogged up with metal shaving and gunk. Let's remove the valve and check, also the engine oil should be clean and full. Check the images below.
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Tuesday, August 30th, 2022 AT 12:10 PM
Tiny
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Good day Ken L, done the above many times, in fact I even changed the two of them but the P0340 code still persists.
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Wednesday, September 7th, 2022 AT 1:56 AM
Tiny
KEN L
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This leads back to faulty wiring, I would recheck the wiring connections.
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Wednesday, September 7th, 2022 AT 12:32 PM
Tiny
DEEDEEDONALDS
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The electricians keep saying that wires on bank1 and bank2 camshaft sensors are through (working well) to PCM and the VVTI sensors wires are equally working well. This is what they have concluded from the checks done.

Remember, I told you that I have earlier changed the Bank1 Camshaft but the error code P0340 still returned.

Please can you give a detailed description of what the electricians are meant to do as regards checks on the wiring.

Please note that my car is a 1gr V6 2009 Land cruiser.

Thank you, Ken L.
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Wednesday, September 7th, 2022 AT 11:06 PM
Tiny
KEN L
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No problem, in this guide it shows the tests that need to be done:

https://www.2carpros.com/articles/how-to-check-wiring

Also did you sway out the PCM when you did the engine? If so, I can get you wiring diagrams just give me the year Tacoma the engine came from.
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Friday, September 9th, 2022 AT 5:05 PM
Tiny
DEEDEEDONALDS
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Thanks a lot Ken L for your continued response to my questions.

The PCM was not changed during the engine change to a V6 Tacoma Engine-just confirmed this from the mechanic.

I don't also know the exact year of the Tacoma Engine that was installed.

But the below is my land cruiser chassis number (I hope this helps):
Car Make: Toyota

Model: Land cruiser (Jeep)

Year: 2008

Color: Black

My Existing Toyota Land Cruiser Chassis Number: JTMHU09J484011171

Engine Number:
1GR0023440-this is the installed Tacoma V6 Engine Number. (Is it possible to trace the year from the engine number?)
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Saturday, September 10th, 2022 AT 2:14 AM
Tiny
KEN L
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Not really from my information the dealer might be able to. Here are the engine wiring diagrams I think you will need. So, this truck has a V8 normally and you put a V6 in it?
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Saturday, September 10th, 2022 AT 2:42 PM
Tiny
DEEDEEDONALDS
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The Tacoma engine in my car is a V6. I can find the wire diagram you talked about.
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Sunday, September 11th, 2022 AT 5:57 AM
Tiny
DEEDEEDONALDS
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I cannot find the wire diagram.
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Sunday, September 11th, 2022 AT 5:58 AM

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