CODE P0315 - Can HPT Clear this?

[dhpro]

Just curious if I can avoid the GM dealership!

[vette_doc]

DTC P0315, Crankshaft Position (CKP) System Variation Not Learned
open your scanner and connect it to your vehicle and follow these steps:

Special VCM Controls
<LI class=Spaced>CASE Learn: To use the CASE learn function please follow these steps:

1. Put the vehicle into park (auto) or neutral (manual).
2. Turn off all accessories and A/C.
3. Apply the parking brake.
4. Press the brake pedal. Keep the brake pedal depressed during the entire procedure.
5. Press Begin.
6. Gradually rev the vehicle to fuel cutoff (around 4000-5000 RPM's) over a period of about 4 seconds. When fuel cuts out, immediately release the throttle.
7. Allow the engine to come back to an idle.
8. Turn the ignition off for at least 15 seconds. This step is required for the VCM to store the newly learned configuration.

[vette_doc]

no need to clear this code, fix the problem.if you will not relearn crankshaft position System Variation you will not be able to detect misfire.

[C5norway]

no need to clear this code, fix the problem.if you will not relearn crankshaft position System Variation you will not be able to detect misfire.

Any way of doing crank relearn when engine is out and sitting on an engine dyno ?
custom harness and HPT and stock PCM on a LS7 2007 model ?



Rune

[siffert]

no need to clear this code, fix the problem.if you will not relearn crankshaft position System Variation you will not be able to detect misfire.

Does this Hp Scanner relearn procedure work with the E38 ECM for my '07 Corvette?

[Bill@HPTuners]

Does this Hp Scanner relearn procedure work with the E38 ECM for my '07 Corvette?

It should.

[siffert]

It should.

Member 8850 just tried it on his 2008 Corvette LS3 using your latest beta and no workee.

[Bill@HPTuners]

Nobody contacted support about it

[siffert]

Nobody contacted support about it

He just tried it not more than a half hour ago. I'll get on him to report it.
Going to try it on my 2007 LS2 tomorrow.

[Bill@HPTuners]

Make sure you follow the instructions in the help file as we made corrections to it after one of our employees purchased an LS2 equipped vehicle just so he could run this test to make sure it worked

CASE Learn: To use the CASE learn function please follow these steps:

1. Put the vehicle into park (auto) or neutral (manual).
2. Turn off all accessories and A/C.
3. Turn the vehicle off.
4. Apply the parking brake.
5. Press the brake pedal. Keep the brake pedal depressed during the entire procedure. REQUIRED for successful test completion
6. Start the vehicle and let it idle.
7. Press Begin.
8. Gradually rev the vehicle to fuel cutoff (around 4000-5000 RPM's) over a period of about 4 seconds. When fuel cuts out, immediately release the throttle.
9. Allow the engine to come back to an idle.
10. Turn the ignition off for at least 15 seconds. This step is required for the VCM to store the newly learned configuration.

[8850]

Make sure you follow the instructions in the help file as we made corrections to it after one of our employees purchased an LS2 equipped vehicle just so he could run this test to make sure it worked

CASE Learn: To use the CASE learn function please follow these steps:

1. Put the vehicle into park (auto) or neutral (manual).
2. Turn off all accessories and A/C.
3. Turn the vehicle off.
4. Apply the parking brake.
5. Press the brake pedal. Keep the brake pedal depressed during the entire procedure. REQUIRED for successful test completion
6. Start the vehicle and let it idle.
7. Press Begin.
8. Gradually rev the vehicle to fuel cutoff (around 4000-5000 RPM's) over a period of about 4 seconds. When fuel cuts out, immediately release the throttle.
9. Allow the engine to come back to an idle.
10. Turn the ignition off for at least 15 seconds. This step is required for the VCM to store the newly learned configuration.

I tried again but did not have these new instructions. Engine was running in 3. I'll have to try again.

Notice "Not ready - ETC Low" Is that a problem?

[siffert]

I had the same "Not ready - ECT Low" message as 8850 in my 2007 LS2 A6
Corvette that I tried today. I followed the instructions above completely.
Using V2.2.0 Its not the car, its a problem with the HP Tuner software.

[Bill@HPTuners]

I tried again but did not have these new instructions. Engine was running in 3. I'll have to try again.

Notice "Not ready - ETC Low" Is that a problem?

Try using the newest public version to see if you get the same ECT Low.

BTW theres a big difference between ETC & ECT

[Bill@HPTuners]

I had the same "Not ready - ETC Low" message as 8850 in my 2007 LS2 A6
Corvette that I tried today. I followed the instructions above completely.
Using V2.2.0 Its not the car, its a problem with the HP Tuner software.

Why are you using software thats nearly 2 years old? Try updating to 2.22 to see if that allows you to perform a case learn.

All software updates are free.

[8850]

Try using the newest public version to see if you get the same ECT Low.

BTW theres a big difference between ETC & ECT

Sorry, typo. Should be ECT. I'm use the latest beta 2.23

[siffert]

Sorry, typo. Should be ECT. I'm use the latest beta 2.23

I think he is saying to try official 2.2.2 version, not the beta.

[Bill@HPTuners]

I think he is saying to try official 2.2.2 version, not the beta.

Correct, the newest beta will give an ECT error if you are in imperial, but I would like to know what error 2.22 gives if possible.

[8850]

Correct, the newest beta will give an ECT error if you are in imperial, but I would like to know what error 2.22 gives if possible.

I'll load it up and get back with you.

[Bill@HPTuners]

I'll load it up and get back with you.

Thanks, also if you run into any issues with the beta whether it be case learn, etc. please contact support directly.

[8850]

Case Learn works with 2.22!

Cylinder Balance didn't highlight but I don't have a procedure for it nor do I know what it's for.