Can someone suggest a solution to what is the cause to all these codes. P0174, p0171, p0734, p0150, p1300, p0306, p301, p0300, p1175, p1319, p0308. I am not sure were to even start as far as replacing parts. [sm=smiley5.gif]

 

I know what is wrong but just to make sure, what years is the truck, what model, what mileage, what octane gas and when was it last tuned?
These are all things we nee to verify a problem.

 

it is as 2001 Discovery II SE, 93 Octane gas is used, and it has 121,000 miles. About a 1 1/2yrs ago I had the pugs and wires replaced.

 

Well based on 4 of the codes, you need a new MAF, what type air filter are you using and how often do you replace it?
The rest of the codes are misfires, what brand of plug wires, what brand of plugs and what gap?