SES Light
 

I had to replace the rubber T on top of the PVC valve with a new one. I did that, started it up, turned over fine, but idled badly and blew some smoke for a few seconds then the SES light came on and then she idled fine with no smoke like normal no bad sounds and at the regular RPM. So I checked the codes again and it was still showing a 33. Disconnected the battery for one minute to clear the code and started it up again and it did the same thing. Anyone got any answers?

Re: SES Light
 

first check to see if the map hose is still connected, might have popped off and it will go into limp home and run very rich.

Re: SES Light
 

MAP hose seems to be connected.

Re: SES Light
 

Make sure it is connected at both ends and that the hard tube has not slipped off the nipple.

Re: SES Light
 

Hello, and welcome to the forum.:handshak:

I suspect the same things as the other posters, but let us know your progress.

:cheers:

Re: SES Light
 

I took my Z to my local Chevy dealership that handles and originally sold ZR-1s. Their most experienced mechanic found a vacum leak underneath so bad he said he sprayed carb cleaner under the engine bay and it almost killed the engine. It is going to be $400 parts and labor. I talked with some of my car guys and they said that sounds about right. I said for them to go ahead and do get it done. Let me know what you all think.

Re: SES Light
 

Keep in mind that just because a dealership sold ZR-1's. it does not mean they have mechanics trained or certified to work on an LT5. Many parts on a ZR-1 are standard C4 issue, and any competent mechanic can effect repairs (assuming you want to pay through the nose). However the engine is a different story, and even experienced Corvette mechanics do not want to touch them. I understand if you do not want to do the work yourself, but you would probably be better served to find a ZR-1 mechanic and let him do the work. It will be done right, and typically for less money.

:cheers: