Disco Inferno
New Member
I have a 1995 M reg 2.5 300 tdi disco and the only mods are a "decat" (removerd particulate filter) and an egr blanking plate. Initial pull away is pitiful but on the move dont seem too bad (Still not great) I know its a landy and not a sports car but early this morning I was on an empty M1 and found that on level ground in 5th flat out she does 75mph. I know this is already above the stated speed limit but it is suposed to go about 20mph faster than it currently does which shows there is a problem. Sedimentor has been emptied and cleaned and a new fuel filter and air filter has been fitted. The Landy doesn't have any black smoke at all on start up or when running flat out and only gives a little puff when changing up under heavy acceleration which makes me think its under fueled. Could it be the lift pump to blame or would that effect it in a different way? You can here the turbo spin up and feel the difference in power at about 2750rpm but still feels very weak... never driven another tdi to compare it to as I have only ever had a 3.5 twin carb which went like a rocket.