I own a 2001 Chevy Blazer. I recently had my check engine light come on. I took it to the parts store to have them check it and the code came up "Air intake malfunction". They suggested that it might be the O2 sensor. I replaced the left one. Nothing changed. So I changed the right one. Still nothing. My truck just doesn't have any power.
Any idea what could be wrong?

Thanks for any info.
Janet

 

What was the code specifically? Looking down through the list, I don't see one that lists as you described. And if its an intake problem, I would not have changed the O2 sensors. That's $$$. I'd have changed the air filter, pcv valve, and cleaned the MAF sensor WAY before switching out the O2 sensors.

 

yea i agree...if u think its something to do with intake.... open the air box and let more air flow into the engine...if the light turns off then its an intake problem....if u had a friend with a blazer u could just swap mafs for a few to see if thats the cause..