Buy Nissan @ your own risk!

[BLKGSXR]

OK, now go back and read my posts. Altima has a cat and a pre-cat. I said technically it's the pre-cat that is coming apart. Any particle that can damage cylinder walls, which is what it is doing can certainly damage a sensor. I never said the sensor went bad. I said the tip was sheared off! So hot oil broke the tip off the sensor? Or maybe there are moving parts in the exhaust I don't know about. You don't have to watch CSI to tell something hit the sensor... I can show you a pic when I get back home.
Like I also said, I didn't pay any attention to the sensor, it was someone else who pointed it out to me and told me it would be a waste of time replacing it because by the time you get it to be inspected that ones going to be damaged. But everybody's wrong and you're right. I'm sorry.

most newer cars have precats but the insides are metal and dude gravity doesnt change inside the exhaust chamber how in the hell can something go into the motor if its on the last cycle of combustion, it cant.
http://www.eng.ox.ac.uk/ice/images/disi.gif
http://www.grc.nasa.gov/WWW/K-12/airplane/engopt.html

[sucka4chix]

Click the link. Read the thread. If you missed it, here it is again:

http://www.velocidadmaxima.com/forum...74&postcount=3

skip to the design flaws

[phobun]

OK, now go back and read my posts. Altima has a cat and a pre-cat. I said technically it's the pre-cat that is coming apart. Any particle that can damage cylinder walls, which is what it is doing can certainly damage a sensor. I never said the sensor went bad. I said the tip was sheared off! So hot oil broke the tip off the sensor? Or maybe there are moving parts in the exhaust I don't know about. You don't have to watch CSI to tell something hit the sensor... I can show you a pic when I get back home.
Like I also said, I didn't pay any attention to the sensor, it was someone else who pointed it out to me and told me it would be a waste of time replacing it because by the time you get it to be inspected that ones going to be damaged. But everybody's wrong and you're right. I'm sorry.

most newer cars have precats but the insides are metal and dude gravity doesnt change inside the exhaust chamber how in the hell can something go into the motor if its on the last cycle of combustion, it cant.
http://www.eng.ox.ac.uk/ice/images/disi.gif
http://www.grc.nasa.gov/WWW/K-12/airplane/engopt.html

Only on HA forum will you find two dudes arguing about whether a tailpipe can be one direction only.

[sucka4chix]

OK, now go back and read my posts. Altima has a cat and a pre-cat. I said technically it's the pre-cat that is coming apart. Any particle that can damage cylinder walls, which is what it is doing can certainly damage a sensor. I never said the sensor went bad. I said the tip was sheared off! So hot oil broke the tip off the sensor? Or maybe there are moving parts in the exhaust I don't know about. You don't have to watch CSI to tell something hit the sensor... I can show you a pic when I get back home.
Like I also said, I didn't pay any attention to the sensor, it was someone else who pointed it out to me and told me it would be a waste of time replacing it because by the time you get it to be inspected that ones going to be damaged. But everybody's wrong and you're right. I'm sorry.

most newer cars have precats but the insides are metal and dude gravity doesnt change inside the exhaust chamber how in the hell can something go into the motor if its on the last cycle of combustion, it cant.
http://www.eng.ox.ac.uk/ice/images/disi.gif
http://www.grc.nasa.gov/WWW/K-12/airplane/engopt.html

Only on HA forum will you find two dudes arguing about whether a tailpipe can be one direction only.

Ha! It's possible for a car to "bottom"

[phobun]

OK, now go back and read my posts. Altima has a cat and a pre-cat. I said technically it's the pre-cat that is coming apart. Any particle that can damage cylinder walls, which is what it is doing can certainly damage a sensor. I never said the sensor went bad. I said the tip was sheared off! So hot oil broke the tip off the sensor? Or maybe there are moving parts in the exhaust I don't know about. You don't have to watch CSI to tell something hit the sensor... I can show you a pic when I get back home.
Like I also said, I didn't pay any attention to the sensor, it was someone else who pointed it out to me and told me it would be a waste of time replacing it because by the time you get it to be inspected that ones going to be damaged. But everybody's wrong and you're right. I'm sorry.

most newer cars have precats but the insides are metal and dude gravity doesnt change inside the exhaust chamber how in the hell can something go into the motor if its on the last cycle of combustion, it cant.
http://www.eng.ox.ac.uk/ice/images/disi.gif
http://www.grc.nasa.gov/WWW/K-12/airplane/engopt.html

Only on HA forum will you find two dudes arguing about whether a tailpipe can be one direction only.

Ha! It's possible for a car to "bottom"

The Altima must have won a top prize because it's sure screwed you.

I hear that mechanics are into S&M because they like to put the car onto the Rack and then crawl underneath and use their tool.

[sucka4chix]

Hey thanks, man! I've found the next new porn star---Altima. She can suck shit out of her own ass, and fuck you while she's doing it!! This'll be bigger than tranny midgets!!

[phobun]

Hey thanks, man! I've found the next new porn star---Altima. She can suck shit out of her own ass, and fuck you while she's doing it!! This'll be bigger than tranny midgets!!

LOL

[BLKGSXR]

@phobun your one weird fuck....
@sucka I reply to what I want to....Design flaw in precat no...I dont agree with that but today ill look up if this is an actual thing I have access to Mitchell OnDemand5 AllData and Manufacturer files sooooo...

[sucka4chix]

@phobun your one weird fuck....
@sucka I reply to what I want to....Design flaw in precat no...I dont agree with that but today ill look up if this is an actual thing I have access to Mitchell OnDemand5 AllData and Manufacturer files sooooo...

It appears the precat is too close to exhaust manifold. Someone else said the car runs rich. At any rate, precat gets too hot, stressed beyond it's design parameters and it's guts start coming apart. Then, since the exhaust valves are used in lieu of a egr valve, the particles are sucked back into the engine on the intake stroke. Now I don't know if all this is happening. What I know is: the O2 sensor I took out was beat to hell. The car has been using oil and water like crazy since the car was less than 2 yrs old. It's been coding for cat since car was 2 yrs old. Everyone I've talked to who owns the car puts oil in it all the damn time--- except the ones who lost an engine because they didn't check it everyday.
And I know Nissan doesn't give a fuck and their customer service sucks! These are things I know. All the other stuff is what I've been told and read.
If you see an Altima with this engine, I bet it's fucked or will be.