Cm870 low boost
07-11-2020, (Subject: Cm870 low boost ) 
Post: #1
Cm870 low boost
It is a 2005 peterbilt cm870 cpl 8519. Was changed to 8518 by previous owner. I just bought a bully dog ecm tuner and put the economy with power tune on and now only getting 25-30 psi boost. {up to 40 previously} I checked for codes and have 2. pid: 251 fmi real time clock
Sid: 103 fmi turbocharger speed #1

Also have not deleted anything
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Messages In This Thread
Cm870 low boost - Farmer379 - 07-11-2020
RE: Cm870 low boost - tree98 - 07-11-2020,
RE: Cm870 low boost - Rawze - 07-11-2020,
RE: Cm870 low boost - JimT - 07-11-2020,
RE: Cm870 low boost - Rawze - 07-11-2020,



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