Today, after having some trouble with the Forge DV, I switched back to the stock DV with the uprated spring. When I drove it afterwards, the car went into Limp Mode and threw code P129D. From another thread I've picked up that the code means this: * MINI DTC P129D (0x2B73) - Manifold Absolute Pressure (MAP) Maximum Pressure Implausible

I'm trying to figure out exactly what this means, and what to look for in terms of solving the issue. One run it happened pretty quickly, around 13 psi, the second run it held up to 15.8, but kept happening without fail. Turning the car off and back on will take it out of limp mode, but not for long. Any help or suggestions would be greatly appreciated!! Thanks

--Caleb

 

The charge air temperature/pressure sensor sounds faulty or inlet pressure sensor on intake manifold. Just my opinion from your descriptions

 

@Braminator, thanks for your response. I cleared all the codes that showed up, drove it again, and after it went back into limp mode the only code showing up was p2885, the one related to the diverter valve seeing too much or too little boost. So now maybe it's a boost leak? Or could it still be a faulty sensor? Once again I appreciate everyone's help!
--Caleb

 

Check this thread out maybe it could help
https://www.northamericanmotoring.co...de-2885-a.html