ok so a about a 1 1/2 months ago i reoiled my k&n a little while after my cel light came on. coinsidence that i just oiled it? im not sure. well the light would come and go and sputter. fall on its face. this is not my truck. well i went to advanced yestarday and got these 4 codes. p0101 p0102-maf.... p0402-egr... p0128-something about coolant and the thermostat. i did clean the maf lastnight so ill see how it goes now. could the maf be messing with what the egr is doing too? truck is blocked and fingered since last labor day. thanks for any help.

Nick