ya i did but i am still not sure it is correct

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you don't have a DSP 5 tune do you DangerousDuramax

I use the DSP2 which is a little different. I havent gone through the DSP5 set up but will be soon.

i am hoping someone over on DP has one i can try

Kevin G does. There are several on DP that do. Have you checked the repository's?

OH YEAH...racehemi is really well versed with the DSP5. Shoot him a PM.

ya there are not any in there

ya i will shot him a pm and see if he can help

Keep us posted as to what you find because I'm going to be switching to DSP5 soon myself.

well i just took the switch off and its doing the same thing still so much for that guess its going into the shop now because i am all out of ideas

Hope this helps.
 

Jonathan, this is from my service manual directly related about the P0335 code:

Important:

Remove any debris from the ECM connector surfaces before servicing the ECM. Inspect the ECM connector gaskets when diagnosing or replacing the ECM. Ensure that the gaskets are installed correctly, The gaskets prevent contaminant intrusion into the ECM.

For any test that requires probing the ECM or the component harness use the J 35616-A Connector Test Adapter Kit. Using this kit prevents any damage to the Harness connector terminals. Refer to Testing for Intermittent and poor Connections in Wiring Systems.

The Following conditions may cause this DTC to set:

Any Poor connections or poor terminal tension at the sensor. Refer to Testing for Intermittent and Poor Connections in wiring Systems.

Any crankshaft reluctor wheel damage or improper installation

The sensor coming in contact with the reluctor wheel

The engine running out of fuel

Excess crankshaft end play causes the CKP sensor reluctor wheel to move out of alignment with the CKP sensor. This could result in any one of the following conditions:

A no start

A start and stall

Erratic performance

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So maybe you got something clogged in your ecm or that race valve might have done something messing with your fueling.

i wounder if its not all the way tight and it is letting air out of the fuel rail or could my fuel rail be drained all the way and i need to bleed the fuel rail

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do you guys know what the signs of a fried ecm is i am just thinking maybe something happen when i put my DSP 5 switch in maybe