thanks for helping heres the story its a 97 4.0L last week it failed inspection for a po133 ho2 slow response and mil light failure i replace the bulb and the oxygen sensor it was passenger side b 4 the cat then took for a ride about 10 miles next morning crank no start hit it with some starting fluid still same i noticed the snorkel completely disconnected at air filter after maf sensor figured it messed with ecm readings so connected it back up truck started up ran good used the truck for 2 days running to work about 18 miles total also added gas on way home ,,,, well this morning cranks and wont start again i dont have access to scan tool gonna check the usual spark/fuel i am thinking maybe the maf sensor is junk just figured maybe you guys could point me in another direction if spark/fuel checks out ok thanks alot