98CamZ28

iTrader: (31)

Hi guys,

I have a complete new build that I have probably ~100 miles on so far. Here is what I have

00 Z28
5.3
turbo setup
4l80e
Stock 411 pcm
PSI standalone harness
Circle D Billet ~3200 converter
3.27 rear

After the car was finally together I had it tuned. On the dyno, the tuner stated that he was trying to command the car into 3rd but it would not go. After I brought it home, I drove it around and I thought it may be shifting into third buy not OD.

Basically, I do not have a way to scan what's going on and it appears to be that what i'm thinking is third or fourth may possibly just be lockup in 2nd gear (if that's possible?). It definitely has a 1st to 2nd shift, but I can't tell 3rd from lockup. It drives fine around town, but when i'm on the highway it's spinning ~3000 to 3500 rpm at 60mph or so.

I'm definitely open to taking it somewhere in the Chicagoland area to have it looked over, but I would need someone who would be able to diagnose whether it's the trans, wiring or pcm.

Any thoughts? All help is always appreciated!!

98CamZ28

iTrader: (31)

No one?

I's sad now, I must cry

Jake's Performance

iTrader: (2)

Without a scanner you're wasting your time to try to diagnose it. You could do it, but it would cost you more in wiring, connectors, LEDs, and time thant it would cost to buy a scanning program for your laptop.

If you are going to attempt to repair modern electronically controlled cars you have to buy the tools.

98CamZ28

iTrader: (31)

That's kinda what I was saying in my post, I don't have a way to scan, but I am willing to take it somewhere if they could handle all pieces of troubleshooting (trans/computer/etc.).

I do have one of your 1st gear transbrakes in it and that worked fine at the track and it comes up on the brake and 2-step decent (need to tune it to come up on boost a bit sooner).

Thanks,
Josh