p0606 and p1518 2002 corvette z06 6 speed using COS for 2-3 bar.

[slow ride]

I have a 2002 6 speed vette with a COS set up on a 2.5 bar MAP. Everything has worked great for the last year or so till the car lost power in the burnout box last fall and has the codes p0606 and p1518. Now I had not flashed the car in a few months so it’s nothing new caused by flashing as the car had been run a decent amount with this last tuning software update and the COS was installed and running 3000 miles and over a year. I understand the pcm is bricked right now from p0606, but can I use efilive to un-brick it or does the flash chip need to be removed, flashed and re-soldered? I suppose a new PCM could be used also, but I'm afraid about license stuff as my V1 was gifted it to me for work done and it's locked to the previous owners and my PCM (only had the two credits). Not sure what direction to take with it.

I also wonder when I do get it running that I can turn off the these two codes? I'd rather know what actually caused the error, but not if it's going to brick the PCM every time.

Thanks in advance,

Ed Charboneau

[joecar]

Hi Ed,

Are you able to read the tune from the PCM...?

[slow ride]

From what I understand I will not be able to connect to the PCM, but since my old laptop had failed I didn't try yet (the traction control also had a code for not communicating with the PCM). I have the old laptop working again and purchased a new one so I should be covered on that front. I'll report back with the results, but I'm guessing I will not from the other posts on the corvette forum and here regarding the gen3 pcm and the p0606 code in a corvette.

[slow ride]

So i tired to connect with the scan and flash tool and I get nothing from the pcm. p0606 and p1518 are active codes that do not clear. The entire time the ignition is on the display chime is ringing off and on and the service traction control/traction control flashed (code is related to pcm not being on the bus). I get a flash memory error every time when trying to flash the tune or full operating system. From the information I have found on the p0606 code on these pcm's pops up when some sort of tcu problem or mismatch occurs and basically bricks the flash chips in the pcm to keep the dealers from reflaching them in case the electronic throttle system really has a glitch.

So I can either get another used pcm for the car or someone actually fixed the flash chips on these boxes. Problem is that this efilive software was gifted to my for work done and it is a V1 with no extra credits. What would be the best way to handle the credit situation?

[Blacky]

Have all 25 PCM licenses been activated on the V1 device? If not then a replacement (free) license can be issued. If all 25 PCM licences have been activated then there's no simple solution. We may need to get your V1 sent back to EFILive.
Regards
Paul

[slow ride]

Thanks for the response and no this V1 only has two license (mine and my friends). Friend gifted this v1 to me when he upgraded to v2 as part of that trade in deal since I built him a forged engine. I know I can't add extra licenses to it, but if you can override that in special cases like this I would be very grateful. What does the software look at in each PCM for licensing? Would I be able to add a random used PCM and set it up with my cars vin, etc and be good or would I need you to open up the license? Sorry if this seems a little noobish :)

So I take it that this p0606 & P1518 is sort of a random thing that doesn't happen often? The ls1 pcm in a corvette is probably one of the early ones to adopt the drive by wire which I what I figured caused the problem. I'm going through the grounds, plugs, etc to make sure things are clean. The corvette forum had the most search hits on this problem and all the people with c5 corvettes had to replace the PCM after p0606 was active. It does sound like someone can change the flash chip on the PCM, but getting the new one seems easier doesn't it?

[Blacky]

For a replacement PCM we can issue a replacement PCM license. Email me your serial and auth code for the V1device and a copy of the receipt for the replacement PCM. Email to [email protected]
The error occurs when the PCM has detected too many ETC errors or the ETC data is too far out of range. Replacing the flash chip is a fairly simple process for someone who has the soldering skills required (I don't, but I'm just a programmer). However, replacement PCMs are also pretty easy to obtain.

[slow ride]

Do you know if the flash chip is replaced will efilive still recognize the original pcm number and not need to mess with a new Licence? I suppose it will just be easier to get the used PCM as you say. I'll get something rolling and send you the info thanks.

I am curious if it had something to do with pedaling the throttle while doing a burnout, the car is a twin turbo z06 six speed. Since I can't check right now, is code p0606 something that can be turned off later:) The car has never had any issues before this one.

[Blacky]

If the new flash chip is pre programmed with a file that was previously read from the old flash chip prior to the fault occurring then it will not need to be relicensed.
The file will need to be in bin format so that it can be flashed into the chip using a chip programmer. We can convert one of your old ctz files into a bin file for that purpose if you want.

The fault occurs when the ETC and the PCM disagree on the throttle data too many times. If the PCMs throttle tables are modified too far from what the ETC expects to see and if the throttle is used in a way that hits the data points that disagree more times than it hits data points that do agree then the fault can be triggered. There is no way to turn off the code other than to use stock or very close to stock throttle tables. It may also be a genuine hardware fault with the ETC so don't discount that.

Regards
Paul

[slow ride]

Ok, I think I'm going to grab a used pcm from the boneyard as it seems they are super cheap and all over my neck of the woods. I will email you my v1 numbers and a copy of the purchased pcm if that works? Might take a few days, etc.

I will have to check the file as I didn't think it had non stock throttle tables in it, but I suppose it could have had them from the previous tune. I actually thought I lost all my files on my old laptop as it has a video chip solder issue (one of the reasons I waited to post about this as the car was down in fall). I have since re-flowed the chip (for the 3rd time LOL) and got my old tune files backed up thank god. I'll send you one if you want to look. Thanks for taking the time out for me.

Ed Charboneau

[slow ride]

Email sent Paul, thanks for the time.

Ed

[Blacky]

Replacement license sent
Regards
Paul

[slow ride]

19265

So I got this pile running now. I went through the basic COS upgrade and started off with a stock tune overlay to be sure nothing strange was going on in my old files. I then updated the tables to suit my old setup. Any of you guys want to take a peek at it and see if you see any throttle table issues, etc? It should be stock except in the traction control area I think.

Thanks,
Ed

[joecar]

Ed, so you are running boost...?

[slow ride]

Yes, I suppose something is not set right? AFR is good and car makes power as it was right around 1000whp on e85. That file is different, but close to those values except for e10 gas vs e85. My fuel system is boost compensated also.

[joecar]

Out of Range calibration summary: 03:50:19 pm, Wednesday Feb 17, 2016

EFILive Custom Calibrations
{A0001} Forced Octane Scaler Percentage, was out of range when loaded.
{A0002} Octane Scaler Limiter, was out of range when loaded.


and also A0012, A0013.


To get these in range, set them to max-1, save file, exit tunetool, restart tunetool, set them to max, save file.

[joecar]

B3609: set to 0.050 s.

[joecar]

Some people do this (it a matter of your choice):
- set B3613 to 105 kPa (so PE table enables at/above 105 kPa);
- set B3618 to boost fueling (yours would be EQR 1.2285);
- set B3647 for non-boost fueling (increasing EQR as you get to the 100 kPa column);

the idea behind that is to allow PE to control boost fueling (B3613 set to 105 kPa);

you can then use B3616 to fine tune when PE (boost) fueling enables via throttle amount.

[slow ride]

19278

Fixed those little issues. I still have lots to learn on some of the setup. The car has been safe the way it was in the past so I'll have to experiment with the correct techniques at some point. It's already hard to get logs of the car on the road due to traction, etc. What does EQR stand for? Just how much will change at in fueling under boost with the changes above? I assume I will need to re-tune most of the fueling by quite a bit.