Hey everyone,

My issue-

I have an 09 SS/TC with GMS1 and my car is throwing CEL P2227 for the Barometric Pressure Sensor. It will boost to around 5 ps -10 psi and then stop and the boost will drop.
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What happened-

Was removing zzp dp to put on my stock (selling it soon enough). Car slipped & smashed my radiator.

I dropped the fan putting the new radiator in (works fine), is it possible the plug that goes into the fan is having an issue?
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Thoughts-

Wondering if I messed something up putting in the radiator of reinstall of oem downpipe?
Prior to this I had no issues besides the code from my DP. (Assuming my flash was fine. Didn't have ZZP DP on until a month after GMS1 and no issues then)

At the time of the install I did unplug the battery to clear the DP code, same time as radiator @ DP- not sure if that has anything to do with this either.

Since then I have unplugged the battery for 30 min and checked the connections on the intake manifold so far...

Thank you for any help or ideas!

-Lane

Photo by lanekrarup • Instagram

 

Hey guys, any ideas why an OEM DP and radiator install would cause boost issues and a cel?

 

Check your map sensor in lower charge pipe...