P0016 on a 60k mile car

[Ultramaroon]

Originally Posted by steve99

Tactrix cable see tactrix link below or i just bought a kess v2 clone and it works fine as well

Would it be possible to search through a ROM backup with a hex editor? Maybe edit them manually? If you found all four of those values close together in the file...

[steve99]

Originally Posted by TheStig85

Just harassing James Martin (tuner in Florida) and he says it's mostly likely a sensor or OCV that's bad. He says its a PID system, so it has a learned value.

He's recommending to just swap sensors and/or OCVs. Pull the battery, wait a few minutes to reset it.

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Thats what i think is logical , and i agree with james but havent you already chamged all that stuff once ??, Id check the sensor clearances as per tsb as well

[steve99]

Originally Posted by Ultramaroon

Would it be possible to search through a ROM backup with a hex editor? Maybe edit them manually? If you found all four of those values close together in the file...

The rom area is fixed values any variable data is storred in ecu ram which is reset when you remove power from ecu. But their may be some other memory on ecu thats non volitile that may only be reset on a reflash but im jist guessing. Thier is other stuff storred in ecu like the vin number thats not in the main microcontroller. And it isnt reset with reflash or when you remove power you have to specifily address that area.

[TheStig85]

Just out of curiosity... Doesn't these CELs plague the early 2013 models of our cars? If that's the case, what changed between 2013 and 2014 models?

I'm in a chat group with local owners, and they all said to just swap the engine as that's the only fix. I think that's ridiculous and there has to be a fix, but as we don't know the root cause, it's hard to repair it.

[bcj]

My early 13 still doesn't have teh plague at 67k miles.

[kinghurl]

Originally Posted by bcj

My early 13 still doesn't have teh plague at 67k miles.

Is your car modded at all? Ecu, rev limiter, pre cat exhaust?
Is it driven in anger....on weekends? Not like an angry jockey, but more like GTA? Oil change intervals? Perhaps built by old German engine builders with their signatures under the manifold...
Seriously, some of the above may matter.

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[bcj]

Stock.
Though I use it to go for moderately long drives to places with more livestock than people.
Usually at the posted speed.

Could it be the hard parking that many seem attracted to?

[Ultramaroon]

Originally Posted by bcj

Stock.
Though I use it to go for moderately long drives to places with more livestock than people.
Usually at the posted speed.

Could it be the hard parking that many seem attracted to?

I still think the secret failure is from shit jamming the main valve. The one I worked on came back. He's been driving it without issue for months now.

[TheStig85]

Originally Posted by Ultramaroon

I still think the secret failure is from shit jamming the main valve. The one I worked on came back. He's been driving it without issue for months now.

Which main valve?

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[Ultramaroon]

Originally Posted by steve99

And it isnt reset with reflash or when you remove power you have to specifically address that area.

Is the procedure to reset or write to those other areas of NVRAM known outside the big house? Some jumpers, or a bench test system of some sort?

[Ultramaroon]

Originally Posted by TheStig85

Which main valve?

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The one that the OCV solenoid operates. I think it's a matter of getting to it in time, before that ECU table goes too far out of whack.

All I have is my one success story, though. My friend got in touch with me as soon as his car threw the code, and we dug into it right away.

edit: It's number 3 on this exploded view, the 'spool valve.'

[steve99]

Originally Posted by Ultramaroon

Is the procedure to reset or write to those other areas of NVRAM known outside the big house? Some jumpers, or a bench test system of some sort?

I dont think so.


Way to test would be to get one of the ecu from a car thafs had cam issues then use that ecu in a knwn good car jist reflashed to correct calid

[SLVRSRFR]

FINALLY got my most recent code scanned, the one that keeps flipping on and off, and thankfully it seems to have nothing to do with P0018 or P0016.

Code I'm getting is P0351, which is Ignition Coil related. It's just weird that this code only started to pop up AFTER having my P0018 repair performed, but it is what it is.

[rusty959]

Originally Posted by steve99

I dont think so.


Way to test would be to get one of the ecu from a car thafs had cam issues then use that ecu in a knwn good car jist reflashed to correct calid

I haven't been keeping up with this thread so I may have missed something, but if anyone wants to test this, I'd probably give up my original ECU. Still haven't sold my BRZ but I don't much have a use for my old one.