Way to give your friends car hell.

 

that was a douchetard move of you and your friend.. i would never let my friends abuse my car...

 

lol, this is the exact reason no one but me gets in the driver's seat of my car.

 

Thats not limp mode.

^ To OP. Its a sign telling you to stop ****** baging the car.

 

true that!

 

I have been researching the new ZChip from TTP and it appears that some users are getting a "Service ASC Light" that is coming on. I don't think anybody has gotten to the bottom of the issue yet. Some have speculated that adding an aftermarket exhaust may have something to do with it. Using the process of elimination I am trying to figure out whether this is being cause by the ZChip or something else. So the question is:

Is there anybody with a flashed ECU (Works, Ecutek, AMS, etc.) that have developed this condition?

I am very interested in the fact that the ZChip is invisible to the dealer for service (uninstall in 5 minutes), appears to make quite a bit more power that a typical flash, and the Ecu has no sign of being "altered" but am concerned about this condition that happens to be occuring in some cars.

Any feedback is greatly appreciated!

 

I have flashed my car probably 15 times and never had a light. 70 WHP + from just the flash too.

 

Had an Ecutek Tune done by AL @ DYnoflash on my Evo X and no ASC lights at all either.. The car made 70hp thru the midrange on a mail in flash not even a custom tune.. Al is flying in Wed to tune my X so well see what it makes now on a custome tune..

 

Wish i could help but anything zchip is secret, at least treat it as such.

 

Perhaps the Z chip is throwing something out of whack in the ECU, much like an MBC throws a 1320 code (overboosting) because it's not altering the boost at the source and boost cut and limp mode kicks in. Piggybacks tend to cause little driveability issues like this as well because they operate on the basis of intercepting signals and manipulating them, rather than by altering them at the source.

In any case, I need to correct you on one thing though; I'm not saying that the Z chip is a bad product but you people have got to realize that it does NOT make more power than any other form of engine management like a reflash or standalone. The only reason that people think that is because TTP's dyno reads high.

This, again, doesn't mean that it's a bad product but you have got to understand that different dynos can read WAY different, both in baseline numbers and in gains. Perfect example: there was a thread a while back comparing the 1/4 mile times and trap speeds of an ecutek tuned X making about 70 whp over stock on their tuner's dyno, and it ran the EXACT same time and trap speed as a Z chip equiped X making the "106 whp over stock" that TTP claims.

The main difference in the various engine management options out there is the level of precision, control, and driveability and this is where a reflash or a standlone excels. No offense to the Z chip, but piggy backs just don't offer the level of control and precision that a reflash has. As far as warranty claims are concerned; a reflash is pretty much undetectable so I wouldn't worry about it.

For a dealer to even be able to tell it's there, they would have to pull the rom image to compare it to a stock map and see if there were any differences, and this could take hours. Mitsu would have to pay the dealership book hours to do this which they are not going to want to do, and if you don't tell them it's there then they would have no reason to suspect that it's there anyway. Just my .02...

 

LOL^^

I am getting a "Service ASC" warning along with ASC-OFF lamp displayed on hard acceleration. When setting the traction mode to SNOW and the ASC button to OFF, the system doesn't give me the warning unless I redline, while shifting from 1st to 2nd gear. Leaving it on Tarmac, gives the warnings with even moderate driving. I have contacted FQ-Performance to try and gather more data. ANYONE who pulls a DTC (and I really encourage this, even if it's a quick stop at AutoZone with a basic code-reader) PLEASE report back. NOTE: you will need to pull the code while the warning is ON, otherwise it will clear itself once you cycle the ignition. Hopefully I will have my DTC posted here around lunchtime tomorrow...

 

This simply isn't true. An OEM calibration file has a calibration number to match it, an each subsystem and subpart of the file have their own unique ID's. Even if you altered the code within the file, and didn't change the file name or ID, there are identifiers in a separate location of the ECU that can tell us how many times a computer was flashed & when, and which parts were updated. Yet another part of the ECU records crash conditions & vehicle information not accessible to your average tech, only to say, an ASM


This thread is here to focus on the ASC issue some owners are facing, so I don't understand why we're off on the subject of reflash vs. piggyback...

 

I felt it was pertinent to correct the OP in his assumption that the Z chip makes more power than a reflash. Fuel octane and parameter controllability set the limits, not the interface. A piggy back isn't going to magically allow the engine to run more boost or timing without knocking. The thread that compared the 1/4 mile times and trap speeds is somewhere in the X setion from months past.

Oh, and you ask why I say that TTPs dyno reads high? I would say it's based on the fact that it reads a stock X at like 260+ whp when the average mustang reads more in the 220 range. No offense, but the info that I have given that you seem to be questioning is readily available in past threads, and with being a newbie to EVOM you shouldn't be questioning and disagreeing with people on facts that are well established on this forum.

The reflash detectability issue, for instance, is discussed thoroughly in a thread by WORKS tuning somewhere in the engine management section. Read and catch up to those who have been here for far longer than you before accusing people of being wrong. In any case, this was not off topic because the OP asked if anyone has had any issues with a reflash like you BOTH seem to be having with the Z chip, so comparison to a reflash was totally relevant.

Again, I would assume that since the Z chip isn't altering the values in the ecu directly but rather intercepting them and manipulating the output/input that the ecu could freak out a little. Why would this be in the form of an ASC issue and not a cel? I honestly don't know, but the ASC is integrated into the SAWC system, which reacts to power output from the engine, which is run by the ecu. Perhaps it's coincidental, as this has happened to people with relatively stock Xs, again I don't know. But piggybacks can't adjust the more intricate things in the ecu like safety parameters.

This can cause issues like going into limp mode from a P1320 overboosting code because the ecu doesn't know why the car is running more boost and intervenes. I just felt like explaining the benefits of a reflash and offered some insight as to why the Z chip might be causing this issue, and I thought it would be beneficial to the OP to let him know that a piggy back really isn't the best option out there.

 

There are 6 maps based on airflow alone that affects drivability .. SSTs included ..

Anything that doesn't matches up triggers a CEL / ASC .. on SST it triggers transmission slippage CEL and feels like one ..

ASC reference airflow calculation for engine power cut .. the algorithm compares rpm with TPS for the reference airflow ..

 

This is going to be interesting. Subscribed