help-engine power reduced

[VelocitySTSV]

When I put my exhaust on, it was really no big deal getting the mufflers to fit. You just cut the tailpipes back a little bit and make new tubes to adjust for the different angle. It only took about an hour and a half to install the corsa system.

[VelocitySTSV]

My best time so far was 13.2, but it wasn't the best weather conditions. I truly feel I can get in the 12's with a second shot on the track and better weather.

[zman1]

Well after about 3 weeks with my D3 stuff installed and black box hooked up i got my first check engine light. The car was shifting very very hard and the light came on. it was P0172 a fuel trim issue. Now what?!?!?!?!?!

[thefred]

To all that did..... Thanks for guinea pigging the D3 stuff. But, it sounds a little unreliable to me....

[Bee iLL]

Originally Posted by zman1

Well after about 3 weeks with my D3 stuff installed and black box hooked up i got my first check engine light. The car was shifting very very hard and the light came on. it was P0172 a fuel trim issue. Now what?!?!?!?!?!

Only thing to do is clear the code and let D3 know that you received that code. They were suppose to get back to me after checking with their "tuner" guy, but have yet to hear back from them. Calling/emailing them weekly is getting to be a pain in my ass. Maybe you will have better luck getting through to them.

[zman1]

so you have your black box hooked up now.....when was your last code?? I took my box out

[urbanski]

Originally Posted by thefred

To all that did..... Thanks for guinea pigging the D3 stuff. But, it sounds a little unreliable to me....

yup.

[Bee iLL]

Originally Posted by zman1

so you have your black box hooked up now.....when was your last code?? I took my box out

Its been about a week and a half, but I actually havn't been driving my car that much lately. I drive my grande cherokee to work every day and I am expecting a baby boy any day now so I really don't have time to go out "joy" riding. I try to drive it whenever I get a chance because I'm trying to get some freeze frame sensor data when the dtc trips to throw at D3, but havn't gotten the light to trip since I got the software that will do that..

Actually heard back from craig today after sending him an email. here is what he had to say.
"we have been able to verify the tune in the box sent to you is the same tune that is in our own STS-V with the Stage 1.5 set up. The only difference we know of between the vehicles is California uses 91 Octane versus 93 Octane out of state. I do not believe there is a programming difference in the Vehicle's PCM from out of state cars, otherwise we would have SES light issues with the stage 1 kits also. We're waiting on the new software to retune the vehicles for 93 octane and Stage 2 intakes. Please bear with us for a little while longer. Thank you."

I guess we will see what happens. I'm going to be storing my car away for the winter pretty soon, so at this point I'm just hoping they have a solution by next spring. I'll keep poking though to try and get us all a solution sooner than later.

[zman1]

I talked to Craig today as well and he told me the same thing about the gas but he didn't tell me anything about waiting for software.....James from D3 is supposed to call me back on this as well. I will be driving my car all winter so I will keep you posted on what happens with my car. Good luck with the new little one on the way!

[WillySTS]

Originally Posted by zman1

I talked to Craig today as well and he told me the same thing about the gas but he didn't tell me anything about waiting for software.....James from D3 is supposed to call me back on this as well. I will be driving my car all winter so I will keep you posted on what happens with my car. Good luck with the new little one on the way!

After watching this board and having my own issue with the "check engine " and my D3 box, with the same same code I might add...here is what I did the 2 times my light came on.

First time, I called Onstar, and they said it was a fuel trim issue. I went home and disconnected the box, but noticed that it was wet.I removed it, drove the car to work the next day(Cadillac dealership), called D3 and they came and got my box and said they would check it out and send me a replacement if needed. Approx 3 days later, they called me and said 'no problem was found with the programming or function.' I drove down to D3 and picked up my box, James installed it on the shock tower in stead of the inner fender, so as to avoid water. This worked well for quite some time.

2nd time - About 2 months later, I got into the car after my wife came back from Bakersfield complaining, "I wish that you never started fooling with the car, because now it's shifting hard and has less power, uses a lot of gas. I had one heck of a time stayin' in front of this Mercedes on the way back and that little light is on again!" So, I looked, and sure enough, the SES light was on as well as the TC light. So, I called Onstar and the confirmed a "fuel trim" issue again and something with my traction control. Since this was a weekend, I took a look myself and found the wire for the D3 box coming out of the MAF sensor had been rubbing on the underside of the engine cover, some were rubbed through and shorted together! So, I removed the cover, separated the wires, left the box disconnected and drove to work on Monday. I called D3 again and told them what happened. The told me to clear the code, tape up the wires so they won't contact anymore, leave the cover off and try it. I did and it's been fine ever since, about 6 months ago. I cut a hole in my engine compartment cover just over that connector so there is no contact now.
I feel like "I" was the guinea pig!

Anyway, that's my story and I'm stickin' to it.