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Discussion Starter #1
So my plan yesterday for my T56 Magnum XL swapped, DOD deleted, base tuned (for cam and manual swap (manual swap part done with a Camaro file by fasterproms)) was to drive until the p2135 throttle body code came back that's been throwing the car into limp mode and see if clearing the code would let me drive immediately afterwards.

Another code came up that was new, "U" something. I was stupid and didn't write it down and it hasn't come back since. Anyways, I gave up on my initial plan and just parked the car and unhooked the battery for about 24 hours and ordered a new silver blade throttle body.

After hooking up the battery to the car I'm now only getting these brand new to me codes P1516 (throttle actuator control module) and p2101(Throttle Actuator Position Performance) with the original throttle body. I unhooked the battery and put the brand new silver blade throttle body in (same as what it had before) and still get those codes.

I cleared them, tried to turn the car on and it turns over and runs by itself for about a second before dying. So I can't even try to do the throttle body relearn that's described on another post on this forum.

Engineering mode says for both the original and new throttle body that throttle position is 51.3%. idk why but it also says all my tires have 148psi, and that battery charge is 0.0%, but battery voltage is 12.1.

Is there anything else electrical that could cause this issue besides needing the throttle body relearned? I don't get why the original throttle body that was letting me drive yesterday would now need to be relearned.
 

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Do you happen to have a 102mm tb? If so, there is patch to eliminate this issue
 

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I wonder why he didn't just use a manual GXP file. Anyway, have Jeremy at FasterProms add the patch for the P1516/P2135 code.
 

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Discussion Starter #5
I wonder why he didn't just use a manual GXP file. Anyway, have Jeremy at FasterProms add the patch for the P1516/P2135 code.
Iirc that doesn't work well. Should have done a Holden commodore or Calais my file.
 

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Discussion Starter #6 (Edited)
Edit: I think I might have determined part of the issue so just read the next post for now I think.

Edit: issue I think was that I had tried to swap the new ECM the dealership had worked on to see if I could get the car to run on at least DOD cylinders. A code came up about TCM lost connection so I jumped park/neutral to ground on the TCM to get rid of that.

When the car still wouldn't work right I went ahead and put the original ECM in again. After I just now pulled the jumpers to park/neutral and ground a lot of codes disappeared and two remained. I didn't think that would be the case so I didn't even bother mentioning it since this was a long post anyways.

END EDIT
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So I don't even know what I did honestly. I turned the battery off and back on. Came into the car and tried to get the car to turn over as fast as I could and the car turned over but would not run on it's own.

Now I'm back to these other codes that I thought I had taken care of in the past

P0335 crankshaft position sensor circuit A
P0223 throttle/pedal position sensor/switch B circuit HIGH input
P0122 throttle/pedal position sensor/switch A circuit LOW input
P0118 engine coolant temperature circuit high input
P0107 manifold absolute pressure/barometric pressure circuit low input

I tried unhooking and rehooking the MAF, ECT, and throttle body connectors which did nothing.

Honestly the p0107 code is brand new if I remember correctly. Also I don't feel like the ECT sensor connector is supposed to look like this but maybe I'm wrong? I haven't had this code for a while though.
 

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Pretty sure the problem is that you're using an older type throttle body (Silver blade) with a newer Camaro SS operating system that uses the newer throttle body (Gold blade).
 

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Discussion Starter #8
Going to pick one up right now because it's become like Russian roulette with these fault codes. For a minute I only had three (two throttle position and b2aaa), but now those are gone and replaced with the same damn codes as above in my edited post. At least now it will crank/turn over on command but won't run..
 

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The engine will not fire if there is any throttle codes.
 

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Discussion Starter #11
I put the gold plate throttle body in and got the same codes described in my edited post up above
 

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I know you said the service department did something to correct your condition as I remember. But that they also chose *not* to clearly describe (to you) what they really did for the fix. Those fault codes as now displayed, tells me that the reference 5 volt circuit has crapped out again. Plus your posted codes of P0122 an P0223 read as Throttle body, *not* throttle pedal position sensor. All of which seems to put you back to square one again on this.
 

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Discussion Starter #16
Not knocking the idea by any means, I definitely appreciate all the help you've given. 👍👍
 
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