Most likely is one plug malfunctioning or a dirty injector.
on the intake
The main causes of backfire in any car are incorrect ignition timing, crossed sparkplug wires or worn timing belt (or chains and sprockets).
oil filled lifters no adjustment
The error code p1193 on a 2001 Dodge Grand Caravan indicates that the intake air temperature sensor has failed. The sensor can be replaced by unbolting it, removing the wiring harness, and pulling it from the intake.
Yes, look just behind the upper intake.
You have to remove the intake manifold to take it out the top.
On top of the intake cover on the right side.
Intake air temperature sensor circuit malfunction.
V6, it is on the lower front of the engine. 4cyl it is on the rear, under the intake manifold.
Under the hood, they are plugged into the Intake plenum by the MAF.
Same way as the 01 Dodge grand caravan listed below, be really thin or remove the intake manifold....Im having the same issues it's not fun trust me.
It is top right hand of motor towards the back near intake manufold.