[camaro5]

Sensor resistance decreases as pressure, temperature, or speed is increased and vice versa. As the sensor resistance changes with conditions it provides the PCM with an input voltage signal. If this input voltage signal is not received by the PCM, the circuit is considered open and a P06A3 will be stored.

If the P06A3 is stored alone, suspect that a PCM programming error has occurred.

Obviously, you will need to diagnose and repair any other sensor codes prior to diagnosing and repairing the P06A3 - but keep the open "D" circuit in mind.

Read more at: https://www.obd-codes.com/p06a3

[ctrlz]

Originally Posted by camaro5

If this input voltage signal is not received by the PCM, the circuit is considered open and a P06A3 will be stored.

From what I read, you can also get this code if the input signal to the ECM is out of expected range. It basically treats it like it's open. That's why I think the mods are throwing things out of whack with the ECM's expectations.

[Abdulisraddd]

Originally Posted by ctrlz

From what I read, you can also get this code if the input signal to the ECM is out of expected range. It basically treats it like it's open. That's why I think the mods are throwing things out of whack with the ECM's expectations.

I've had and have been tuned with the same mods for the past 6 months and this is happening to me now for some reason.

[Abdulisraddd]

Originally Posted by camaro5

Sensor resistance decreases as pressure, temperature, or speed is increased and vice versa. As the sensor resistance changes with conditions it provides the PCM with an input voltage signal. If this input voltage signal is not received by the PCM, the circuit is considered open and a P06A3 will be stored.

If the P06A3 is stored alone, suspect that a PCM programming error has occurred.

Obviously, you will need to diagnose and repair any other sensor codes prior to diagnosing and repairing the P06A3 - but keep the open "D" circuit in mind.

Read more at: https://www.obd-codes.com/p06a3

i will scan the car again and report back! thank you so much

[Abdulisraddd]

Just an update guys I haven’t found fix to this yet. I have to pull over on the freeway every time I do a long pull because I still get the engine reduced power and turn my car on and off. This is so annoying ! I threw my old tune on my car did a few pulls and it went into limp mode again .


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[Abdulisraddd]

The code is by itself as well with no other codes


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[camaro5]

What we have here is a failed component.

The circuit is open long enough to set the P06A3, but not long enough to set a trouble code for the offending circuit.

Could be a bad sensor

Bad wire to sensor from PCM

Bad PCM

Some research shows Throttle Position Sensors causing this often.

They go open long enough to set the P06A3, and cause limp mode (reduced power)

Higher underhood temps when doing "runs" increases electrical restistance, and creates the needed parameters to intermittently open-circuit a faulty component.


2 choices - Go to dealer

Put a TPS sensor in yourself and see what happens. Check connection and for corrosion at TPS.

[Abdulisraddd]

Originally Posted by camaro5

What we have here is a failed component.

The circuit is open long enough to set the P06A3, but not long enough to set a trouble code for the offending circuit.

Could be a bad sensor

Bad wire to sensor from PCM

Bad PCM

Some research shows Throttle Position Sensors causing this often.

They go open long enough to set the P06A3, and cause limp mode (reduced power)

2 choices - Go to dealer

Put a TPS sensor in yourself and see what happens.

Thanks for the write up brother I’ll try to diagnose the TPS. Will the dealer tell me my problem without voiding warrenty?


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[camaro5]

Originally Posted by Abdulisraddd

Thanks for the write up brother I’ll try to diagnose the TPS. Will the dealer tell me my problem without voiding warrenty?

Sorry, but I think the warranty is gone.

Depends on the dealer though.

e85 /Rotofab/ Ported IM/TB Texas Speed 1 7/8th long tube headers with off road connection

TPS comes with throttle body:

BODY ASM-THROT - GM (12620263)
SHOP FOR RELATED PARTS IN THROTTLE BODY
List Price: $220.00
You Save: $93.50 (43% off)
Sale Price: $126.50

https://www.gmpartscenter.net/oem-pa...hrot-12620263/

[V8SS]

good luck figuring out the issue, I know first hand about silly annoying issues but not your specific issue.

[Abdulisraddd]

Originally Posted by camaro5

What we have here is a failed component.

The circuit is open long enough to set the P06A3, but not long enough to set a trouble code for the offending circuit.

Could be a bad sensor

Bad wire to sensor from PCM

Bad PCM

Some research shows Throttle Position Sensors causing this often.

They go open long enough to set the P06A3, and cause limp mode (reduced power)

Higher underhood temps when doing "runs" increases electrical restistance, and creates the needed parameters to intermittently open-circuit a faulty component.


2 choices - Go to dealer

Put a TPS sensor in yourself and see what happens. Check connection and for corrosion at TPS.

So I put in a new throttle body with a new tps and the same problems keep happening :/ so far I’ve diagnosed my tune and throttle body .



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[DRGNZ]

Just a thought, Valet mode?

[camaro5]

Originally Posted by Abdulisraddd

So I put in a new throttle body with a new tps and the same problems keep happening :/ so far I’ve diagnosed my tune and throttle body .

That sucks!

If you follow the flow chart, next is to use a dvom to check the circuit, but we have to guess which circuit with no specific code for individual circuit id.

So, maybe throw a new pcm in? Or -

Take it to the dealer - $$ I know, but they have experience with this issue and can plug new parts in temporarily to aid diagnosis.

At a large dealer, the techs talk with each other for difficult cases, and many times someone will say - I had that, took two days to find out that ....

Problem solved.


To follow up -

No trouble codes except blanket open circuit code?

Confirmed factory tune has been restored?

b

[cwebster]

Originally Posted by Abdulisraddd

Ok so I can’t seem to figure out the problem myself so I’m here to hopefully find an answer lol

Every time I do a hard pull right after my car shifts at redline my car will say engine reduced power, It would start misfiring , I would have to pull over turn the car off and back on and its fine it’s like nothing ever happened. Everything will be fine again unless I do some pulls. I keep getting engine reduced power and having to pull over on the freeway which really sucks .. any thoughts ? So weird that the problem would happen and just go away after turning car on an off . Thanks in advance you guys got me through so much on these forums !

This sounds suspiciously like the "Manual Transmission Protection" feature described in GM Doc ID 4733151. The DIC message sounds a lot like the one specified in the last paragraph. This is feature is always-on and hard-coded into the ECM, I believe. It may be an indication that your clutch is worn and slipping. If not, a good tuner might know how to adjust or disable it.

Wierd that it would happen on an A8, though... (just realized you've got an auto). Still, the message sounds similar.



--Cal