help faulty air flow meter and srcew through throttle body?

[jpsl]

hi quick question for you, why would some one unplug the maf sensor and put a screw through the throttle body either to keep the flap closed or open and join the 2 pipes that was connected to the servo, its on a 807 2.0 hdi?

[jpsl]

i have replaced the maf and throttle body and car works great sometimes lol
one minute it will run great the next it just looses power not limp mode just loss of power then it will come back when it feels like it
ive had it serviced cambelt belt changed water pump and dpf fluid refilled
there are no fault codes or warning lights coming on any idea why its doing this
peugeot 807 2.0 hdi thanks

[jpsl]

thanks for the replies i have bought a peugeot planet pp2000 diagnostic kit as its what every one recommends for peugeot so hopefully be here friday or Saturday, so will scan it and see what it says and let you know thanks again ill post probably Saturday with update )

[jpsl]

ok got the pp2000 through today so ill install diagbox etc on a virtual player with xp tonight and hopefully scan it in the morning if not will have to get a crappy laptop just for it will update when i know some thing new )