I have a P0420 code that I need TSB done for. I also asked about doing a timing advance. Service guy said they will not do that, that they leave everything as factory set, due to some liability issues.

I will try another dealer, but it's 30 minutes away.

 

dont talk to the service manager or do it "on the record"
when i got mine done i talked directly to a service tech when he went out to get another car. gave him $50 and he did it. both of us won.
josh (irish44j) and I got our's done at the same time)

 

what exactly is involved with a timing advance and what does it do? good for the car?

 

I've noticed that on 3.0L 5th gens, BTDC @ 17 gives an incredible surge of power. On the 3.5L 5th gens not so much.

 

like sooner said, just find a tech out taking a smoke and slip him some cash to do it real quick....

make sure to bring the programming instructions (posted here someplace) to show him when he tries to say "I don't know how to do that" etc etc...

 

i dont know what its supposed to do. i just did it cause josh was doing it...peer pressure

 

that is the impression when me (3.0) and sooonerfan (3.5) had when we got ours done at the same time.

though, "incredible" might be a bit strong of a word

 

but is it bad for the engine?

 

no


10char

 

anyone has a link to instructions?

 

The Stickies do:

http://forums.maxima.org/showthread....timing+advance

 

Not for me it isn't. When I had my timing bumped up to 17, I didn't even know what it was for. My friend at Star Nissan just did it for me, told me to run only 93 from now on (which I always did anyways) and told me to call him later on. Needless to say, I needed to get ahead of some assh*le who wouldn't let me in a lane, and when I stomped it, I had NO idea what the hell to expect. All of a sudden the car just shifted and took off so hard that I vividly remember yelling to myself "WHAT THE F*CK WAS THAT!?" No joke. I actually screamed that out. I was in utter shock, it gave me a heavy foot since then. =)

Shame that the 3.5s don't experience this as much as we do.

 

Instructions:

http://forums.maxima.org/showpost.ph...90&postcount=1

Sometimes I like to credit myself for helping to really bring the timing advance craze to the masses. I've gotten well over 200 PMs asking me about it and where to get it done.

 

But doesn't it put more stress on the engine internals?

 

no..................

 

in this case, could someone explain how it works?

oh and two more questions:

Does the fuel economy decrease?

How much extra HP do you get from this on VQ30?

 

do a little research. this has been discussed A LOT!! no one wants to spend the time to explain everything again.
donating will make your search easier

 

For the time I’ve been a member it was not discussed for sure. Besides, it’ll take at least 20 minutes for me to find this info and someone who knows it can type it in 20 seconds…

So if someone knows the answers to my previous post please let me know.

 

20 minutes to find the answer
or
30 seconds to donate then 30 seconds to search

 

fyi,
i just did a search and there have been 10 threads since jun 05 (when you joined) that answers your question

 

Or 20 seconds of your time (which you have just spent anyways) to save me $25…

Anyways it’s up to you…not you, then someone else

 

well if you think you are just donating to answer this one question, then dont donate. i'm sure you will never need to search for something again...when you can just post the question

 

Basically, when advancing timing you're advancing the point at which spark is created. The earlier the spark, the quicker the power is made and put down to the wheels -- this is also called "Before Top Dead Center" or BTDC. As far as HP increases, it's around the neighborhood of ~5HP per degree -- though this is open for debate.

Fuel economy actually increases as long as you only use 91/93 octane. But you probably won't see much of an increase since you'll likely develop a heavier foot from always wanting to feel the increased surge of power -- I know I did.

On 3.5Ls it doesn't make much of a difference because of how the 3.5L was designed. 3.5Ls are more prone to engine knock from low grade octanes than the 3.0Ls, which might mean that they're already running a certain timing that'll create knock easier. 3.0Ls will require a lot more abuse and poor octane to begin knocking.

Err...I guess if I'm not coming off clear, let's put it this way: the 3.5Ls 15-degrees is like a 3.0Ls 17-degrees. So when 3.5Ls are advanced it doesn't do much for them, because they're already built from the factory to spark quicker/early, where as 3.0Ls have to be advanced to do this. This is what I was told previously by a Nissan technician. It sort of makes sense* once you begin to consider the frequent engine knock issues people have with their 3.5s.

*Edit: I have NO idea how I wrote "noise" instead of "sense".

 

they seemed to be talking about it a lot back in 2002 already.

http://forums.maxima.org/showthread....advance+timing

 

Thanks, that’s basically what I wanted to find out

 

http://www.howstuffworks.com/ignition-system1.htm

http://forums.maxima.org/showpost.ph...9&postcount=20

http://forums.maxima.org/showthread....timing+advance

http://forums.maxima.org/showthread....timing+advance



People need to flippin search.... use the Google, donate, or just read through the old threads.

/thread

 

doesn't look like you're "studyin" like your IM says

 

if people spoon feed them they wont ever need to search

 

Yep, I know. Then it went dead for a while. Then I started raving about it and half of the tri-state here started PMing me about where Star Nissan was located and what was the name of the guy, etc. etc. It seems like it was sort of ressurected. My 200 PMs figure could actually be too little...that's how often I was getting PMs from people about it. :P