07 z06 e38 p0606

[boostls2]

I am having the hardest time figuring this out. This is an 07 Z with built motor and supercharger, decent size cam. I have the tune down. It starts and idles perfect. I have VE disabled.

When I get on the gas hard, it starts to rip and then about 1 second later goes into reduced power. I check the codes and just one code: P0606.

Throttle body is STOCK.
Electronic throttle section in the tune is ALL STOCK. I have never touched any of this stuff. I also compared it to a stock file and it is the same.

The computer was recently replaced by the owner, but everything else is fine. There are no other issues. Could this be a wiring thing? It is only when I nail the throttle.

Please help! In over 200 cars Ive tuned Ive never seen this.

[silverstreak04]

Where did the owner get the "new" ECM from? p0606 is a code for a internal control module problem, I would swap the old pcm back and see if it still does it. Why was the pcm replaced to begin with

[silverstreak04]

it could be anything from a maf or map sensor shorting out once it starts to hit boost or a certain voltage or a bad driver in the ecm that does fine until it hits a certain "load" range... i have seen many "rebuilt" pcm's from auto parts stores bad out of the box

[boostls2]

Okay so this is weird...I went to do some highway pulls to see if it would happen on the highway and it happened with barely any throttle...3 times in a row. It happened with such ease, I was like WTF this wasnt happening before, so I pulled over on the highway, and I went back 5 tunes earlier than the one I had in when I made this post, fired it up and went WOT and the problem vanished. I did several wot pulls and it ran great. So I immediately thought OK cool, it was the tune, for some reason. So I started putting back little things that were missing...really just MAF Low stuff and Base running airflow stuff for the idle. Then I went and stepped on it again, but not on the highway, just on a back street (I was headed back home at this point). Then, I was certain the problem was gone and it was some fluke in the tune...and at this point, I did something I hadnt done yet...I DISABLED traction control. I rounded a corner and stepped on it 100%...car shredded the tires like I was on ice, and sure enough, fu*%ing P0606 kicks in.

So now I am thinking there may be an issue with the traction control system????

But why when I went back 5 tunes did the problem seem to vanish?

Its almost as if once I disable TC, the problem keeps happening after that regardless of whether I shut the car off and restart it and do another test.

I will do more tests tomorrow. TO answer the question about the ecm, the guy who did the work kept using aftermarket alternators in the car (like 3 of them) and the car was having very crazy overcharging issues...so finally it toasted the ecm. So they got a new one and a new delco alternator and the car has been fine since.

Everything, I mean everything else on the car is working and running like a dream.

[caesar]

Did you flash your replacement ECM with GM's TIS first? If not, you will need to do that.

[boostls2]

Did you flash your replacement ECM with GM's TIS first? If not, you will need to do that.

GM's TIS? What is this?

[1202896042]

Check the fuel pump module. Check the wiring or it can be the module