i,ve fitted an after market dump valve to the mrs t-jet once before the plastic standard one and again after the standard one (hope i'm making sence here) but both times i kept getting the engine light on the dashboard lighting up and have to get it reset at my local garage.
before i return it back to standard is there any way around this so i dont get a warning message come up.
before i return it back to standard is there any way around this so i dont get a warning message come up.
