I’m having a very strange issue with my truck. It started on a morning I went to start it and it started up as usual but then dropped to 200ish RPM. After a little it idling pretty rough at 600 and was Misfiring pretty badly when idling. But now the next day I go to start it It starts up as usual then down to 200rpm then it dies. I unplug the MAF and it idles great and no misfires. I cleaned the sensor and sprayed it liberally with MAF cleaner and waited about 20mins before I put it back in and went to crank it, Same issue it dies after going to start it. I’m stumped.

Codes are: P1884(current), P0300(pending), P0304(pending), P0303(pending),P0302(pending) and P0505(pending)

 

Maybe check it with a different (known good) MAF.

 

Yeah, bad maf.

 

Figured, It’s the cause of all the codes? I forgot to mention I also have P0130 and a P1171. I think the 1171 is cause of the MAF. The P0130 I think its the 02 connector as it’s soaked with oil it looks like.