Crankshaft Position Sensor Location

Hey Guys,

This one has been killing me for a while. Check Engine light came up. Code is P-0016 "Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A". I have changed the camshafts (both), hardcore clean of the engine. My only other option is changing the Crankshaft Position Sensor. Some suggested that it might be the timing chain, but the engine is not dying or acting different. So please! Do you guys know where the Crankshaft Position Sensor is located in a Toyota Tacoma 2007 4.0. Thank you

 

That code usually pertains to a stretched timing chain. P0016 and P0012 I quote chains, guides and tensioners.

 

Even if the engine is not stalling or dying?

 

Welcome to TW!

How many miles are on your truck?

 

200k + ... Thank you. Happy to be here and on the road to getting back on my truck.

 

Yes, the codes are simply stating the cam and crank are out of correlation. The true way to tell is with an oscilloscope and graph them, but with 4.0 tacomas we dont even check. Once its over 150k and p0012/16 we just call a tear down.

 

I agree with BISHOP84, it could be the timing chain. I think it would need to be really bad for the engine to stall.

 

Yeah because it's a correlation issue not a sensor failure issue. They aren't in the exact right spots in relation to eachother (cam vs crank signal) the computer can make it run like that but less optimally.

 

Alright, well you guys helped me figure this out instead of spending unnecessary money. Thank you guys. Timing chain is out of my scope of practice so I will have a professional look at it, this is no backyard project for me. Thank you guys again!

 

In your original post it says you've changed camshafts. You mean sensors? Because the shafts are harder than the chains to replace!

 

Yes, I meant the camshaft sensors, not the camshafts. Small difference haha.

 

But just for information:

 

Where is the camshaft position sensor located at

 

Having the same code. Installed the two camshaft position sensors. Engine light still goes off and engine still spudders. Code also says it could be the crankshaft position sensor. Will try that as well. What are the chances this will fix it. Or is it the timing chain. I only have 140k on this engine I expected more time until the chain changing

 

I am not a mechanic so take my advice for what it is worth (nothing)

While it is possible it fixes it, I would doubt it will.
Mostly because I’d suspect there would be an additional code for the other cam if it were the crank sensor.

The key word here is “Correlation”. Which means, things are not in sync when they should be.
You could use a scope and look at the data, or do a visual timing check to know. A scope would be fast, but they are expensive.

 

If you got a cam correlation issue you've either got bad VVT actuators or solenoids, or a very stretched chain. I've heard of low oil pressure causing the same issue but it has to be dramatically low