P0109 Ford - how do I fix this code

Question

I'm pulling multiple codes and having rough idle. codes p0100 thru p0109

Answer 1

P0100 thru P0109

You have a code condition from the MAF (mass air flow ) to the MAP (manifold absolute pressure ) sensor. The MAP sensor on this type of engine size is a thermal manifold absolute pressure sensor it very similar to a air intake air temperature sensor which mean it cannot cause a rough idle. . What can cause a rough idle is a MAF air duct boot . If it is not properly seated, or any vacuum leak that is not metered by the MAF sensor, Due to the sparkplug type that this engine has to have a misfire can caused this type of code condition . especially with a rough idle condition.