Where is the MAP sensor located on a 2005 Chevy Impala? (video)
Will a MAP sensor cause a no start?
your car fails to start: the engine's computer uses the map sensor to gauge atmospheric pressure before the engine is started. a false reading could cause too much or too little fuel to be delivered to the engine. both conditions could keep it from firing up. via
Will my car run without the mass airflow sensor?
Should You Drive Without The MAF Sensor? While unplugging the MAF sensor to test whether it's the cause of your problems is fine, you should not continue driving without it. The safe/limp mode is not optimal for long-term driving, and your engine needs the MAF sensor to run properly. via
How does a GM MAP sensor work? (video)
How do you fix a manifold absolute pressure sensor? (video)