Question about Nissan Altima
Hello, I have a 2005 altima, and when I go for a 5 mile drive and stop for 15 min. When I go to start my car. the engine will turn over but the car won't start. Lately, I replaced my cranshaft and cam sensors that I got from nissan. I also replaced 4 spark plugs (NGK laser). I have also replaced my pcv valve this morning and my air filter. I have tried everything from the forums but no solution. I have checked my MAF sensor and It looks clean. Before I had no check engine light, but I heard about the sensors that could go bad. so I replaced them. Now, I have a check engine light with the catalyst system efficiency below threshold. my car drives smooth. what can cause my car not to start Please help me, I am lost
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
You could have an enefficient converter. Question is what caused it to go bad? I have attended seminars on code 420, Possible causes are lack of spark or clogged fuel injectors. there have been times where the spark plug wire lays on the engine and over time it wears a weak spot in the side of the wire, its not enough to throw a miss fire code but it keeps the full amount of spark from getting to the plug and not burning the all the fuel in the cyl. A leaky injector would also cause to much fuel to be deliverd into the cyl and not get burned.
Hope this helps.
Posted on Jan 20, 2010
you may have a bad converter, its not cleaning the exhaust, but on the other hand a bad rear o2 sensor can also cause this problem,there is a wat to test but you would need a scan tool or scope,replace the other sensor, if light returns then replace the converter, no money lost, if you were to replace the converter the o2 sensors should also be replaced. you have 165000 miles it would be crazy not to replace sensor and install new cat, so basically your just doing it in 2 steps and may get lucky and not need a cat. good luck.
Posted on Mar 05, 2010
Testimonial: "Your information is exactly what I needed to know.I suppose I just did not want to spend the money for a cat. converter. Thanks again for your help. "
Tips for a great answer:
Oct 06, 2014 | Cars & Trucks
Jul 25, 2017 | Cars & Trucks
Sep 20, 2013 | 2003 Nissan Altima
Jun 29, 2013 | 2005 Nissan Altima
Oct 12, 2010 | 2005 Nissan Altima
Feb 13, 2010 | 1997 Nissan.5 Altima
Feb 04, 2010 | 1999 Nissan Altima
Aug 30, 2009 | 2005 Nissan Altima
Jan 01, 2009 | 2005 Nissan Altima
70 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: