I replaced my 2011 LC9 5.3 with a 2011 L96 6.0. I grabbed a stock E38 tune from a 2010 L96 to use as a reference. In VCM Editor have copied over:

• MAF / freq
• VVE
• Inj Flow Rate vs Pressure Delta
• Inj Flow Rate Multiplier vs Battery Voltage / IAT / MAP / Fuel Flow Rate
• Min Inj Pulse Width vs RPM
• Rail Pressure Min / Max
• Inj Offset vs Pressure Delta vs Ignition Volts
• Short Pulse Limit
• Pulse Crank
• Short Pulse Adder

I replaced the MAP sensor with the part number that AC Delco calls for, and I am getting a P0106 code. With the ignition on / engine off, the MAP and BARO readings are both 98 kPa which is appropriate for my altitude. Where do I go from here? I have not yet checked the voltages at the harness but if the MAP and BARO readings are both good then it's unlikely I have a wiring issue, right?

Would there be any issues with just dropping in the stock L96 tune?

 

Did you also replace the tranny?

 

No, stock 6L80 and stock trans tune.

 

This might be a clue; from a google search:How many volts should a MAP sensor read?

With the ignition on, the MAP sensor output should be around 5 volts. Start the engine and check the reading; at idle, the MAP sensor should read 1 to 2 volts. This indicates the MAP sensor is responding to changes in vacuum. Digital MAP sensors are best tested with an oscilloscope.

Do you know if the code is the same with the harness off of the sensor or if any other codes appear?

Probably good to follow/check the voltage all the way to the E38.

Also, do you know if the stock tune on the new E38 was for a 6L80?

Nick

 

This might be a good read for trouble shooting:

https://www.fixdapp.com/blog/p0106-code/

What Causes Code P0106?

• Faulty MAP sensor
• Faulty MAP sensor wiring
• Leaks in air intake system
• Open/Short in wiring for MAP sensor
• MAP sensor affected by water or dirt

 

My last log (attached) has MAP readings in kPa and the MAP voltage channel active but it didn't log any data for that channel. Maybe not configured correctly?

There was never a combination of L96 and 6L80 in production. L96 either came with the 4L80 or 6L90.

I did some checks for vacuum leaks at the usual places including around the MAF and didn't uncover any. Just basic spraying down with carb cleaner.