Hello, I have an issue with my 2003 Ford f-150 XL 4.2 L V-6. When I bought this vehicle the owner that I bought it off of told me, that there is a little miss, and he said the codes throw up o2 sensor. He said spark plugs and wires where due for a change, so I went ahead and bought them with the sensors. The truck has ran fine until I decided to due to the maintenance. I purchased both a upstream and downstream, unbeknowance that there is 4 total. I replaced the spark plugs and wires, to see if it helped the miss. It ran terrible. The codes pulling up are ridiculous. I have no clue where to go from here, or was it something I did when I put in the new plugs and wires. I made sure the firing sequence was correct. I checked double checked and triple checked both the snugness of the plugs and the placement of the wires. There is a sound, like a suction sound when ever I hit the gas, it sounds like air is being suck in or something. I need some severe help.

 

Did you use Motorcraft plugs and wires? Did you use dielectric grease? Have you double checked the firing order? Have you checked the coil pack for cracks and carbon tracks? Have you checked the intake tube to make sure it's connected and sealed?

Can't read the codes on your pic, please list them.

 

I used auto lite plugs i don't remember what wires, and the wires came with dioelctric grease in them. And yes I checked and rechecked my firing sequence. It doesn't miss until you start putting your foot on the gas then it sounds like it sucks in air and just starts missing and popping. The codes are p1519 p1460 p0155 p0340 p0443 p1451 p0135 p0141 p0161 p1409
P1131 p1151. Could one problem bring all these codes up at once?

 

Yes - check your fuses and look for loose harness connectors.