catalytic converter replacement questions

[bama16]

i got an CEL...had the wife take it in since i was at work and we had extended warranty. i don't know the codes that were thrown but they put down in the notes a 87716 diagnosis and that bank 2 cat needs to be replaced. i'm at 87000 miles so no go on nissan replcaing. this was to the tune of $1100 for one...i told them i'd do it myself. they said they measured air intake and output and found the driver cat to be the problem. i just ordered a magnflow cat for 260 shipped...i could have gotten a nissan cat through courtesy for like $500....figured magnaflow was just as good. does anyone know of that 87716 makes sense. they cleared the codes and it hasn't come back...but gas mileage is horrible at like ~10mpg. I plan on replacing the cat on friday...just wanna make sure i'm not missing anything.

thanks guys

Bobby

[AZ-Ted]

Next time the CEL comes on, get the codes read for free by AutoZone (or buy a code reader). P0430 is for an inefficient cat (bank 2), and P0420 is (bank 1).

I'm guessing that '87716' is probably that repair shop's internal billing designation for that job.

[bama16]

I don't know if it will...sadly we've been really busy and its been a couple months and it hasn't come back. But gas mileage is horrible...she took it to autozone and it was something like faulty fuel system or somethimg...covered a lot of possible issues from injectors to the cat...I will remove it and seenwhats goin on...thank you

[HashX]

Originally Posted by AZ-Ted

Next time the CEL comes on, get the codes read for free by AutoZone (or buy a code reader). P0430 is for an inefficient cat (bank 2), and P0420 is (bank 1).

I'm guessing that '87716' is probably that repair shop's internal billing designation for that job.

Do you know which bank is left and which one is right? I am getting a 430 and need to know which one to replace.

[masscomguru]

430 I believe is drivers side.

[masscomguru]

Wrong thread.... Sorry.

[Mobius128]

I have the 430 on mine. At first I thought it was the downstream cat, when I finally replaced it with the O2 sensor, I spent around $300 for parts and labor(Napa, Autozone, and a tire shop) it still did not fix the problem. When I took it to an actual muffler shop they told me that it was really the Upstream cat and quoted me for $300 flat. Because of its location Id rather have them do it, so to me it sounds fair, but for you to be charged $1100, that sounds horrible! Meineke tried to charge me $2200 for one side, they said they would of done the other for twice as much.