Oldblue

I’m not understanding why, you’re jumping to other places then what was done just prior to the code coming in, did you check the connection to the MAF?
Yes, that battery is toast!

Ohiocruiser

yes. I did check al the connectors and hoses. Couldn't find anything loose. I checked the maf sensor. It is connected. The only thing that was done prior to code coming up, I forgot to connect maf sensor, I drove the car like this for about 2 miles.

Oldblue

Thank you for confirming that, now let’s go step by step after that, anything loose at the BPV ?
Are you replacing the battery? I’d do that first before ordering an other parts

Ohiocruiser

going to the store right now

Ohiocruiser

So I got a new battery installed. The guy at the store tested old one, and sad it definitely need to be replaced. The light is off now. But probably due to him disconnecting the old one and resting the ecm. So will have to drive more to see if it comes back. Will keep you posted

DrLoch

FYI if you continue to have problems here are the connections for the wastegate solenoid. Yes it for a kappa but the turbo is a ko4 .

RJ_RS_SS_350

But the turbo in question is not a K04.

Oldblue

Yes but it’s a direct bolt on per ZZP

https://zzperformance.com/ecotec/zzp-z54-turbo.html

DrLoch

Understood, a question about the unconnected port of the waste-gate solenoid was brought up. I was merely providing a picture of where they are suppose to go if he did have a KO4, and as OB posted it’s a direct bolt on per ZZP. Maybe a direct bolt in but if it is missing some connections it may help with diagnosing what the true issue is.

RJ_RS_SS_350

I can't see the third port on the turbo








If the missing connection is atmospheric reference, as in your pic, maybe it just doesn't matter if it's connected, even on our K04s.