Hey all, I bought a 02 supercrew lariet with the 5.4 a few months ago. I was drivng it in the city, and the SES light came on, and it felt like the truck had a miss to it at very low rpm. So I bought a code scanner and it came back with one current code, and one ending code. The current code was a code P0356 ign. coil F primary/secondary circuit. So does this mean the coil is bad on the #6 cylinder? Should I replace the plugs, and coil? Also it had a pending code I think it called it. It was a p1450 Unable to bleed up fuel tank vacum. What does this mean? Should I be concerned with it? Thanks!

 

You have an open circuit in the #6 COP's primary circuit. Make certain the connector is plugged in, reseat it, check for corrosion,e tc.

The other code is an evaporative emissions fault, Unless you have to pass an OBDII emissions test, I wouldn't worry about it right now.

Steve

 

Right on! Thanks. I will check it out this weekend.