Valet key switch issue

Originally Posted by TonyTZR1

Hello;

I am new to the site. I just got a 1990 ZR1 and have a question concerning the full power and valet key. The car runs great until put into the full power mode, then it runs crappy. I have no idea what to look for or where. Would appreciate it if someone could give me some direction. I have owned several Corvettes, but not a ZR1.

Thank you

Tony

Tony, I'm guessing when it runs poorly it's when you are WOT. If that is the case, I will go out on a limb andsay your secondary injectors have not been exercised enough and are gummed up.

[TonyTZR1]

Jeff;

Thanks for the reply, I will have them checked.

[TonyTZR1]

Forgot to ask, if the injectors are the case, are they difficult to replace? Iv'e replaced them on my Z06 and that was an easy replacement.

Just remove the plenum and the fuel rail. It's best to replace all 16 at once.

[TonyTZR1]

OK, thanks again.