I went to change my air filter and then I got a code P0103, MAF high input. I tried to clean it using the mass air flow cleaner at O'Reileys. I disconnected the MAF and got P0102 low input. I tried to test the bloody thing using my multimeter and wasn't sure what to test. I got a "new" MAF from the scrap yard and installed it. I had cleaned it since it was dirty with that same spray and when I applied power to it, it seemed to suck on something and stall out. I did manage to get it up to 5K rpm and when I let off the accelerator, it quit. However, the "new" sensor got rid of that P0103 code. Now I don't know what to do. I disconnected the battery and tried it again to no avail. I ended up disconnecting the wires from the "new" MAF and it ran good. But it ran just about the same with the old one. What should I do, other than take it to a garage?

 

Don't know if this will cure your vehicle's problem, but one of the tests we do for a bad MAF sensor is unplug it. If it runs better (it ,the computer, gets info from other sensors) the MAF has a problem. I know we're all trying to save some $$ , but a MAF from the scrap yard is not the better way to go. Suggest you get one from your dealer , exchange, and it should get rid of the problem. Let us know how you make out with this, thanks.

 

So far, I'm waiting on the part. While I'm waiting for it, would the MAF have anything to do with the purge valves in the EVAP system?