mass air flow sensor

[crewpunk]

I have a 2001 toyota corolla S with a check engine light on. I was told that the mass air flow sensor needs to be replaced. Does anyone know how to replace this sensor?? What steps does a DIY need to take?? Any info would be great. Thanks

[Bagi]

Dude, I have a exact same problem O1 corolla LE, this f**ing corollas have same problems or something. I'm working on it right now and I'll let u know. Make sure u do the same!!!

[Brian R.]

Don't replace the sensor unless you know it's bad and cleaning doesn't help. There are usually some cheaper things that can be malfunctioning with the same DTC as indicates a problem with the MAF meter.

What code are you getting?

[Bagi]

Hey, what's new? About the code i'm getting "p0171 system runnin' lean bank#1". That's what it says on the receipt that I got. Yeah, I have cleaned the air flow sensor with special kind of electric spray cleaner thing, the sensor became really shiny but no result. By the way one important thing I wanted to ask is that when I press on gas the engine hesitates as if it's going to stall. Is that has to do with that sensor and check engine light?

[Brian R.]

Sure, any mixture-related DTC can cause strange behavior in running.

The P0171 code could be an HO2 sensor, an ECT sensor, dirty injectors, MAP (Manifold Absolute Pressure) sensor, low fuel pressure, or a loose hose or duct in the air intake after the MAF meter.

Most everything above is cheaper than a MAF meter.