I have a 98 ML320 - it will crank and run for 1 second and then die. I cannot get it to run any longer than that. I used the 5 second test(turn key to on position for 5 seconds and then turn key) to eliminate any key issues - the key works(my older 2 keys will not pass this test). I pulled 2 codes - p0110 and p0204. I've read a lot about cps sensor, maf, fuel pump. Wanted to know which way to go first. Any ideas?!?