Just bought 2004 disco service engine light has turned on and off interme. for the first week, added sea foam to the fuel and I changed out the air filter with K&n drove 30 miles now the service engine light is flashing. found out the K&n air filter can mess up the mass air flow sensor, so took out the filter and cleaned the maf with maf cleaner. now at home changed plugs and front driver's side plug is wet, also the engine is smoking is this and injecter, or is my maf still messed up or can this be something more?

 

Did you even bother to get the codes read? That is the first thing you do.

 

Is it safe to drive to a dealer or am I going to burn a cylinder?

I had handheld OBD put on and read lean bank 2 which doesn't tell me anything.

 

First of all, don't drive it while that light is blinking. I would PM Discomike here. Very helpful guy (as are many others). He's a D2 owner and retired service manager.