After I get pro tuned, should I sell my AP? I was consider selling it because after im pro tuned I should be good to go.. I cant think of any other reason for an AP once im protuned...

was looking for some insight...

The only thing I can think of is to keep it for map switching and knock monitor.. but pro tuned I wont have to worry about knock.

What????? You always want to monitor your knock. It dont matter if your protuned or not. Plus, in order to sell your AP you have to unmarry it from your vehicle or the buyer can not use it. Once it is unmarried then you lose your protune and the computer goes back to the stock tune. Other wise everyone would do it and not have to pay the money for an AP

wasnt aware of that. thanks for bringing that to my attention!

Of course you could get pro tuned with opensource and sell the AP and walk away with 0 out of pocket money. :)

Golden - what about Knock monitoring? What do you suggest I use?

I use the EvoScan Nav. It is a bit expensive, but wonderful. You could have them use Tephra Mods and use the knock cel (which I also have). Or use an Tactrix 2.0 cable with a micro sd card in it and have it log 24/7. Or just ignore knocks, as they will just drive you crazy. lol

lol yea, if i monitor too much ill obsess and not enjoy the car.

Thanks for ur help.

but pro tuned I wont have to worry about knock.
...
lol yea, if i monitor too much ill obsess and not enjoy the car. Where I grew up there was a saying that seems very appropriate here:

Dream On, White Boy!

I was in the same boat, decided to keep it just in case.

Keep the AP :) It has many useful features in addition to the above mentioned.

Only if you want to stay tuned with Cobb.

Keep the AP :) It has many useful features in addition to the above mentioned.


I agree...keep the AP. Very useful tool.

many tuners can put your tune on the AP (they just PW protect it) and then you can keep it on the AP with other tunes like the "anti-theft" mode and just reflash. at least that's what it looks like.

although I think they have to use accessport race software.

Ap to monitor knock drives me nuts. There is no way to tell if it's just engine noise or knock, unless your constantly datalogging and reviewing logs. But as far as just glancing. At it, it's always registering something. Hell just getting Rollin. Froma dead stop will trigger 6 knock counts Due to the clutch engaging

I don't think random knock happens as much as most make it out. Hell my exhuast was hitting from the front subframe all the way to the rear, sounding like a bunch of monkeys with ball hammers, and it didn't trigger any knock. Not saying that someone will not have that "special setup" that would however.

I talked to Cobb a while back and the Guy said he's seen a heatshield rattle and make the knock sensor trigger.

I don't think random knock happens as much as most make it out. Hell my exhuast was hitting from the front subframe all the way to the rear, sounding like a bunch of monkeys with ball hammers, and it didn't trigger any knock. Not saying that someone will not have that "special setup" that would however.

You need to see a log from something that can log at a decent rate then.

My Tactrix cable can log easily over 33 lines a second ( a line equals all the data items I have requested to download), where as a Cobb is lucky to get 10 with ATR and ~13 with the AP. You see a lot more knocks come and go at 33 lines a second.

You need to see a log from something that can log at a decent rate then.

My Tactrix cable can log easily over 33 lines a second ( a line equals all the data items I have requested to download), where as a Cobb is lucky to get 10 with ATR and ~13 with the AP. You see a lot more knocks come and go at 33 lines a second.

I am sorry I should have clarified, on an AP.

How do you differentiate random knocks to actuals? I doubt you here a clink and are then able to relate that to a knock at a 1/33 second timeframe.

The ecu will learn phantom knock and not display it when it sees a pattern.

Ap to monitor knock drives me nuts. There is no way to tell if it's just engine noise or knock, unless your constantly datalogging and reviewing logs. But as far as just glancing. At it, it's always registering something. Hell just getting Rollin. Froma dead stop will trigger 6 knock counts Due to the clutch engaging

I also get crazy knock accelerating from a dead stop. Good to know it not just my car doing this.

To the OP, you will want to keep your AccessPORT after you get tuned. You can't sell it on and have the next guy use it since it is installed on your car still. The AccessPORT only works on one vehicle at a time. If you were to uninstall the AccessPORT to sell it, your car would then return to it's stock, untuned state as Joey mentioned.

As others have mentioned, the big advantage of the AccessPORT is that it is a completely portable scan tool, datalogger and data monitor and reflash device. Personally, I hate lugging a laptop everywhere as it is both a pain and a liability.

As far as knock, it all depends on when, where and how it occurs as has been talked about. The knock sensor is just a microphone and there is signal processing software that the ECU uses to determine what kinds of noise is knock and what kinds of noise is just noise. Also, the ECU will try to run as close to MBT as possible at light loads and cruise and will run as close to the knock threshold as possible to help with fuel economy. Just some food for thought!

If you even have questions about features, functionality or other aspects of AccessPORT use, just give us a call at 801-713-0035 or email us at tech@cobbtuning.com.

Travis
COBB Tuning

I also get crazy knock accelerating from a dead stop. Good to know it not just my car doing this.

So long as it isn't excessive and most importantly not happening during WOT you should be good. I get the same counts you are talking about and it is normal as long as I understood your post as "pulling normally away from a red light and not tear assing away from it".

I am sorry I should have clarified, on an AP.

How do you differentiate random knocks to actuals? I doubt you here a clink and are then able to relate that to a knock at a 1/33 second timeframe.

Every time I ease my clutch out, it knocks.

It's hard to tell, and no one really knows. But when you take off from a light and you get a single 5 count and nothing else, it's more than likely just noise.

My EvoScan Nav makes a noise anytime it pics up a knock. It's funny to see when some are logged.

The knock sensor is just a mic in the engine. The ECU keeps a noise level threshold and every time the noise goes above that threshold, it calls it a knock. The threshold is dynamic and will change with engine noise, but if engine noise increases faster than the system updates it, it may see knocks.

I have asked this question before but never got an answer. Have you guys thought of dynamtting the sensor itself so it doesnt pick any outside sound. A friend of mine did this in his grand prix which are known for its phantom knock. He said that it did work

No. The point is to hear the noise.

No. The point is to hear the noise.

:yeahthat:

okay just wondering

Ok sorry to bring this back but.. I want a pro tune (GST) but I want to be able to go back to stock for trips to the dealer. Can I use the Cobb AP and have that tune saved to the AP or do I have to tune with the AP? I was told that it is better to tune with ECU Flash. But I don't want to use a tatrix cable and a lap top to switch between tunes.

Ok sorry to bring this back but.. I want a pro tune (GST) but I want to be able to go back to stock for trips to the dealer. Can I use the Cobb AP and have that tune saved to the AP or do I have to tune with the AP? I was told that it is better to tune with ECU Flash. But I don't want to use a tatrix cable and a lap top to switch between tunes.

There is no difference in tuning between ECU flash and the ATR they tune the same. Its just easier for some tuners to use ECU flash because its free and thats what they are used to but both serve the same function.

You can have GST tune you then copy and paste the tune over if needed.

There is no difference in tuning between ECU flash and the ATR they tune the same. Its just easier for some tuners to use ECU flash because its free and thats what they are used to but both serve the same function.

You can have GST tune you then copy and paste the tune over if needed.
Doesn't Ecuflash have map switching, knock CEL and more access to SST tables though? It would be nice if Cobb would add these to the AP cause I also have an AP and would like these options included instead of having to sell the AP and buy a new laptop and tactrix cable to add tunes with.

Doesn't Ecuflash have map switching, knock CEL and more access to SST tables though? It would be nice if Cobb would add these to the AP cause I also have an AP and would like these options included instead of having to sell the AP and buy a new laptop and tactrix cable to add tunes with.

The Tephra version has the ability to switch a few tables by following a sequence to swap over. As far as the knock CEL a dash light blinks for knock yes but your AP lists actual correction so your not gaining anything. They both have the same tunable tables for SST's so I'm not sure what your referring to there, maybe there is something I've missed.

What exactly do you think is missing? I guess I'll have to look more into what the Teprha mod does but I'm pretty sure the advantage is the "on the fly table switching" that was made for meth IIRC but other than that not sure what other upgrades are.

The Tephra version has the ability to switch a few tables by following a sequence to swap over. As far as the knock CEL a dash light blinks for knock yes but your AP lists actual correction so your not gaining anything. They both have the same tunable tables for SST's so I'm not sure what your referring to there, maybe there is something I've missed.

What exactly do you think is missing? I guess I'll have to look more into what the Teprha mod does but I'm pretty sure the advantage is the "on the fly table switching" that was made for meth IIRC but other than that not sure what other upgrades are.
I am not sure about the SST table access it is just what I heard from somone else. Sorry if i am misleading anybody...just relaying what I have heard.

If anybody else knows more about this I would also like to know for sure if there are any other differences between the two.

Certain tuners have a lot of SST tables. More than Cobb. They are not released yet and are considered proprietary. As for the rest of us, they have the same tables.

Back to the OP's question.

You can flash back to stock with either the Tactrix Cable or the Cobb AP. Both will work the same, both will tune the same. The Cobb may be more convenient, as it is a small handheld device. Tactrix Cable has it's advantages too. But you didn't ask for a comparison. No need to start that debate here.