P0107 and P2100 and CEL after removing / reinstalling intake manifold ‘13 GTS

[RobertDenali]

 

 

Does anyone have any thoughts on why after removing and reinstalling the intake manifold I am getting a check engine light and codes P0107 and P2100?

 

I believe the CEL is due to the 3rd code in the attached picture for large leak detected. Maybe my gas cap is in need of replacement.

 

I also cleaned carbon off of the valves and replaced the coolant vent line under the intake manifold.

 

After performing this work I noticed these codes and at 1800 rpm the engine has a new vibration when the car is in park. It’s almost like a semi fowled plug however I never went near the plugs.

 

[RobertDenali]

I have been researching these codes a bit. The evap leak might be a bad gas cap seal.

 

The map error might be a bad map sensor. The V8s do not have MAFs. MAP sensors are relatively cheap for the Bosch OEM part.

 

The cam error I am not sure of yet. Maybe sensor or solenoid.

 

I am going to measure the map sensor and since it is cheap enough I ordered a Bosch map sensor. I will get a new gas cap seal or gas cap.

 

I cleared the codes and will see if they come back after the parts replacement are installed.

 

[RobertDenali]

I installed a new map sensor and the car is now code free with the exception of the evap large leak code. I put some gummi fledge on the rubber seal of the gas cap. Going to order a new cap tomorrow.

As for the subtle vibration at 1800 RPM I have been driving the car occasionally relatively hard and that seams to be smoothing out the vibration. Maybe some of the residual carbon was stuck and now freeing up.... only a guess because I have no codes and it is getting better.

[RobertDenali]

I installed a new gas cap, so far no more P0455 code.