2013 FRS timing issue

[Grady]

Originally Posted by jonho

yeah we are all lost on this one. I would get if it had some custom flash but the tuner starts with a fresh flash.

Is there a way to find out who did the engine swap?
What is the Part number on your current ECU?
What is the serial number on the engine?

At this point best thing to do is to try to determine what all components are original and what ones are changed.

[jonho]

ok so put new 2017 cam gears in and car fires right up. I now have 15-20 degrees advance on intake and codes p0011 p0021 p0019 and p0017.

[Grady]

Originally Posted by jonho

ok so put new 2017 cam gears in and car fires right up. I now have 15-20 degrees advance on intake and codes p0011 p0021 p0019 and p0017.

See my previous post.

[jonho]

the block is stamped with the VIN from the car. I will try and get SN from ECU. I called the 2 dealers that showed on the carfax one had done an actuator repair other did a floor mat recall I have no other history.

[NoHaveMSG]

It would be nice to see what the cam position values are in techstream.

[jonho]

ECU shows 22765AC813
So looks to me like its factory block and factory ECU no swapping. Did they ever do tabbed gears on early production ones?

[NoHaveMSG]

Originally Posted by jonho

ECU shows 22765AC813
So looks to me like its factory block and factory ECU no swapping. Did they ever do tabbed gears on early production ones?

Not that I am aware of. Like I said earlier, I have been under the impression the 13-16' ECU can't read the signal.

[jonho]

Intake left and right both show 18* Exhaust left and right both show 0* in techstream

[Grady]

Originally Posted by jonho

ECU shows 22765AC813
So looks to me like its factory block and factory ECU no swapping. Did they ever do tabbed gears on early production ones?

Looks like it is time to go back to the pre 17 cam gears and programming.

[jonho]

so its now on the cam gears and ecu flash it was on prior to rebuild that had no timing issues and its still the 18* both intake and 0* exhaust. This is how car was when I purchased it. The Rom still is and always has been ZA1JA01C which wont start with notched cam gears but will with tabbed

[Ultramaroon]

I'll come back to this after I revive my dead washing machine.

[jonho]

I think I hate fixing appliances worse than cars haha!! So I saw this difference in the link you sent. But if its using a stock ECU file how could it work? Did someone change the wiring because it looks to be as its just the opposite on triggering high to low

[Ultramaroon]

Originally Posted by jonho

I think I hate fixing appliances worse than cars haha!! So I saw this difference in the link you sent. But if its using a stock ECU file how could it work? Did someone change the wiring because it looks to be as its just the opposite on triggering high to low

those are views of first-gen and second-gen sensor outputs. The polarity reversal is solely a function of switching from valleys to hills. I wonder if the ecu can learn to compensate for the change in one direction. ...one way trip for the initial position values. I think that's what they're called.

[jonho]

so I believe the dealer would replace an ECU if they redid timing stuff because it was slow to relearn I thought I read that somewhere