Hi guys engine light came on my dads mk7 2.2 85 2010 then went into limp mode with the cog light, he brought it round and got the 2 dpf p codes, checked loom and found to be broke at back of gearbox so cut the connector out and joined the wires directly together again so all good then took briefly up the bypass near us for 5-10, at first light kept coming on but after second run it stayed off until we got home then started van again and came back on but no limp mode.
Same dpf p code, I’ve told him to try a good run up the motorway for 20-25 mins but would this sort it do you think and make it do a good regen and would the engine light go out by itself or will he after to clear the fault again?