Gauge cluster stopped working

2004 GT 4.6 single overhead cam. Gauge cluster stopped working I pulled the fuses for the cluster #5 and #21. They are ok. I put them back in and started the engine and the gauges worked. Thought maybe the pins were losing contact. Drove the car and in about 1/4 mile the gauges shut off again. Then the engine (after a few feet) started missing. Got back to the house and watched the gauges. They would flicker and for a second the engine cleared up and then gauges would flicker off and the engine miss returned. I have had the car for three years and this is the first time for this problem. No engine light I have a code tester but haven't checked that out yet, I will clean out the garage and put it in the garage and check for codes. Later run out of time so will do that tomorrow afternoon. Thanks for any help. I wonder if I could have a bad ground. Don’t know were they are.

Checked for codes and got P0113 IAT sensor high power out put. I don't think that would cause the gauge cluster to quit working. Looks like no one has had this problem and knows how to fix it. So I guess I am on my own on this one.

Well that Ok but the car has a after market cool air filter and the only sensor on the is the MAF sensor. I know where the sensor would be on the stock set up. But on the after market set up there is no place for it. i am about to trade this Mustang in for a Yugo.

Here are the symptoms : Turn on key (not start) the the fuel gauge comes on (some times). When it does come on and you turn the key to start the engine the gauges work. For a short time. Then the gauges quit working and the engine keeps running just fine. Once the gauges quit working. If you shut the engine off and turn the back on without starting the gauges will not work. When you first turn the key to energize the starter the gauges will jump like they are getting power but the needled only jump and don't come on.