Psi ? Om611.960

Discussion in 'Engine' started by SIBLACKPOOL, Jul 20, 2011.

  1. SIBLACKPOOL

    SIBLACKPOOL Active Member

    Messages:
    74
    Joined:
    Jul 18, 2011
    Location:
    Sunny Blackpool
    Car:
    Mercedes C220 CDI W202
    Hi, After thinking the car was holding back a bit in "kick down" I have fitted a Boost pressure gauge. However on full throttle it reads 22 psi then drops to around 15 psi. Now in old RS Turbo money which was the last time I messed with gauges etc 22psi was mind blowing, ( and head blowing ) Yet it still feels its holding back. It was serviced a few months ago, oil/fuel/ and as much as I dislike them I even ran a fuel additive through it.
    Any ideas , or was the 2.2 cdi a bit lame?
    Cheers:wallbash:
     
  2. Dieselman

    Dieselman Banned

    Messages:
    34,206
    Joined:
    Jul 13, 2003
    Car:
    Peugeot 403 Convertible
    The 22psi is just a bit of overboost, the 15psi is the correct figure.

    A 220 isn't a ball of fire, but if it's jerky at all then the EGR valve might be sticking open a bit.
     
  3. OP
    OP
    SIBLACKPOOL

    SIBLACKPOOL Active Member

    Messages:
    74
    Joined:
    Jul 18, 2011
    Location:
    Sunny Blackpool
    Car:
    Mercedes C220 CDI W202
    Good call on the egr front. Might price on up in the morning.
     

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