help with nelson tune?

[chadt256]

I just ordered my dual 89/93 tune with 80 percent tm gone for my 2006 2500hd 6.0 I was wondering about any mpg increase & how is the power? I had superchip it got old about 3 weeks later. How will I know if I need crank relearn?

[GasGuzzler]

If the SES comes on with DTC P0315 you'll need a CKP relearn.

[chadt256]

Whatever that means I'll check it out

[GasGuzzler]

SES = Service Engine Soon
DTC = Diagnostic Trouble Code
P0315 = Crankshaft Position Variation Not Learned
CKP relearn = Crankshaft Position Variation Relearn Process

[chadt256]

thanks much! How does the PCM unplug? I see the clips but I gotta get the thing unplugged

[RedHeartbeat]

thanks much! How does the PCM unplug? I see the clips but I gotta get the thing unplugged

There is a 7mm bolt holding the PCM plug to the PCM. One on each connection.

[chadt256]

Thanks is that all that holds the PCM plug to the Pcm?

[GasGuzzler]

Yes.

[chadt256]

And also when nelson sends me my Other PCM is it already tuned? and i just send mine back?

[GasGuzzler]

That's how mail orders work. Someone with a Nelson tune should answer for sure.