02 24 valve wont start
 

Got in truck andd ran fine this morning. Went to crank at lunch time. Started, ran for 3 seconds and died, did that about 3 times now wont start at all. My edge tuner gives a tps code but ive been told that it might throw that code but not always the sensor is bad. Dont wanna spend 400 if its a vaccum leak or fuel delivery problem. Any ideas?