I have a 98 honda accord automatic? - 1

I went for an oil change and the guy told me i had to replace my flywheel i did notice some knocking sound before the oil change on my car? What is the purpose of this and what if i continue to drive my car with this knocking sound coming from my car? How much should this repair cost?

Spark plug rating for Honda Accord 1999?

My current spark plugs might be causing a little knocking so I want to change them. They're also old.

I have 170k miles on my car

I know what brand spark plugs my car accepts but the heat ratings are 5 and 8.

What ones should I get?!

I have a honda accord 2.0 I-vtec se 2003?

Honda accord 2.0 I-vtec se 2003 and I keep getting code p1157 I have changed both O2 sensors and still getting this code this is the only code I'm getting p1157 had it reset numerous times and it keeps coming up does anyone else know what it could be please help

I need car advice for buying?

I'm thinking about buying this 1992 honda accord for $700 he won't lower but maybe i can get it for 650 but it has 283k miles yes you heard me 283k miles… I heard hondas were great but when he was driving it (he made me nervous to drive it so i let him but i'm driving it tomorrow) it seemed to shift fine didn't have any knocks was a pretty quiet car he said he changed the oil every 3k miles and did simple maintenance on the car it ran pretty well and best of all its a 5 speed (manual) it has a bit of rust on the outside nothing to major just a little bit but, i'm wondering is this car worth buying? And what are some problems i should look for when i go to look at it tomorrow, thanks!

Added (1). I meant to say in the last part when i go to see the car again, yes i already seen it but i'm going back again.

How to wire two additional speakers into my 2000 honda accord?

Currently i have a set of component speakers in the front and set of coaxial behind the backseat powered by a multi channel amp. I also have two subwoofers in the trunk powered by another amp. I also have a pioneer avh x2600bt head unit.
I'm looking to get a little louder and cleaner sound from my speakers and was thinking about adding another set of component speakers onto the rear doors and custom installing them, but i need suggestions on how to power them. Can i use the head unit? Do i need another amp?

How to reset radio in Honda Accord?

I put in a new battery into my 94 Honda Accord and the radio reset and just shows "COdE" and won't work at all. Am I suppose to call the honda company or something? I just wanna get it fixed. I don't have the owners manual either because the previous owner was very irresponsible