Anyone Know How to Get ALFAOBD out of 'In Plant' Mode?

[Curt Gobbell]

If you know how to get AlfaOBD out of 'in-plant' mode, would you please advise?

Back-story below:
I added the Daystar height spacers to my air ride suspension and vented the front air spring pressure to atmosphere. After the spacer install, the air suspension would not level itself. Using Alfa, I could do a COMPLETE fill of both front springs from the reservoir, but the front of the truck would slowly settle back to the bump stops. I've done this repeatedly and the same result.

Reading my level sensors via Alfa showed some funny results as follows;

• front left ride height sensor (RHS) = 95mm
• front right RHS = -51mm
• rear left RHS = 18mm
• rear right RHS = 21mm

So, I've tried to perform the 'height sensor check' but I get the following error codes

• C15D9 - low air mass
• C2212 - ECU in-plant mode
• C156E - Ride height calibration test failed

Any help would be greatly appreciated

 

[Tach_tech]

You shouldn’t have vented to atmosphere. It’s a sealed system filled with nitrogen. The system is now low. You’re going to have to get it filled.