[FONT=Arial][SIZE=2]Thank for your help in advance.[/SIZE][/FONT]
[FONT=Arial][SIZE=2]When I accelerate heavy at around 4K-5K rpm's I loose all acceleration power, the EML light and the service engine light comes on. After I let off the gas the cars power goes back to normal. I have pulley mod and the UNichip. Could either on of these be related to the problem. I had the power steering pump replaced recently and the problem seemed to happen after that. Thanks for your help.[/SIZE][/FONT]

 

Do you have DSC? If so, try turning it off and see what happens.

 

If it only occurs above about 4k rpm's, I would suspect the bypass valve.

Steve

 

Or a intercooer boot leak.

 

Bypass? Shoot, it's gotta be the fetzer valve

OK, seriously, any codes thrown?

 

Uni-Chip. They same thing happened to me. If I removed the Uni-Chip no more problems. I'm still trying to get it strightened out after almost a year.