loosing power

[tanvics]

any idea what would make my mk7 loose power sometimes putting engine managment light on
lincoln ford dont seam to beable to put there finger on it there saying theres no code on fault finder
if i turn key off and on again it clears it self for a while
when i connect my power box it makes it worse
anybody

[pinhead]

prob the sensor in the exhaust sensing an over rich condition puts it in limp mode
turn key off and on and all will be cured
worse with power box because it increses fueling making it richer
my 125 tdci mk 6 used to do it it could be a blocked intake turbo not boosting enough or a faulty sensor

i am no expert but just my $0.02

[motorwise]

prob the sensor in the exhaust sensing an over rich condition puts it in limp mode
turn key off and on and all will be cured
worse with power box because it increses fueling making it richer
my 125 tdci mk 6 used to do it it could be a blocked intake turbo not boosting enough or a faulty sensor

i am no expert but just my $0.02

which sensor is that then?

[pinhead]

like a lambda sensor or something

i had 1 of those power boxes and all they do is turn up the fuel rail presure

mine had an adjustment and if turned above half would set the glow plug light flashing as soon as you give it some gas and into limp mode

i can only presume this was due to emmision control kak screwing with things