1997 Nissan Altima Misfire Diagnosis -EricTheCarGuy

In this video I get into a misfire and check engine light on this 1997 Nissan Altima. The misfire codes are P0100 MAF sensor, P0325 Knock Sensor, and P0304 Misfire cylinder #4. The engine also runs rough at idle. I go through the steps of it's diagnosis, find the problem, and come back after the repair. The actual repair of this vehicle will take place in another video (next week), this video covers how I found out what was wrong with this Altima. Engine performance issues can be tricky to nail down but with a little time, patients, and some diagnostic know how, I'm sure you'll be able to overcome any engine performance issue. Here's a link to the repair video:    • 1997 Nissan 2.4L Intake Gasket Replacement...   Visit me at: http://www.ericthecarguy.com Facebook: https://www.facebook.com/EricTheCarGu... Twitter:   / ericthecarguy   Google+: https://plus.google.com/1001951801966... Here are some useful video links that may help you in your quest. Power Balance Test    • How To Perform A Power Balance Test  - Eri...   Finding Vacuum Leaks    • How To Find A Vacuum Leak - EricTheCarGuy   Finding Voltage Leaks    • Finding Ignition Voltage Leaks - EricTheCa...   P0325 Diagnosis    • P0325 Knock Sensor Diagnosis - EricTheCarGuy   Re: P0325 Diagnosis    • Re: P0325 Knock Sensor Diagnosis - EricThe...   Leak Down Testing    • How To Perform A Leak Down Test - EricTheC...   Discussion about this video: https://www.ericthecarguy.com/kunena/... If you're interested in an extended version of this video check out a Premium Membership at EricTheCarGuy.com https://www.ericthecarguy.com/premium... Stay Dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information.  EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video.  Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result.  Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.