Quote:
Originally Posted by steve99
There is a number of components that can contribute to the cam issues causibg various codes, the oil control vavles the cam sprokets actuators the cam position sensors and even the ecu. Its very difficult to diagnose and sometimes it appears it due to several compomemts being at the edge of tolerances causing the ecu to see values outside it normal range and set codes.
Dont discount any of those components even the cam sensors or clearances if they send bogus data back to ecu it possible it will interpret that and set codes.
I dont believe their is hard burnt in values in ecu as after doing 20 or more ecu swaps for paople for variois reasons like auto to manual swaps swaps between various year cars cars with and without cam issues after ecu swaps between cars not seeing cam issues, if values burnt in then you would think swapping ecu even on good engines would cause issues due to the burnt in values.
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I've done quite a bit of digging, and I did check clearances on the sensor, even though I'm not convinced that a sensor that reads 1s and 0s would be affected by gap in any way other than only reporting 0s, or only reporting 1s. If you have a signal that's giving information, gapping the sensor really isnt the issue.
The OCV isnt the issue either, as the problem doesnt follow bank when switched.
The sprocket could* be the issue, but I have not seen the same problems others have. The sprocket is not loose from the housing, the spring in the back hasn't popped, and theres no obstruction in the plunger that would prevent the pin from the OCV reaching depth. Additionally, when not in limp mode (i.e. cam lockout mode) the car is it's normal self. There isnt the same power loss experienced from a blacked-out vvt solenoid, and theres no knocks or noise from one side popping out of time. Additionally, 2 shops I've taken it to say that the timing of the cams appears to be fine (which readings they couldn't get if the sensor weren't reading).
Admittedly, there could be intermediate loss of signal from the sensor, but switching the sensor doesnt cause the issue to follow bank.
All that said;
1, will deleting the code prevent limp mode?
2, what ECUs are interchangeable with a manual 13' FR-S? What about this one?
https://www.ebay.com/itm/13-Scion-FR...-/142752770889
Also, thanks for the help. The collective knowledge here is incredible.