2011 hhr issues

[jlds91389]

Hello to everyone. I have a 2011 hhr 2.2l with 87k miles on it. The issue I am having is that the car starts up fine,runs fine while driving down the road but at idle it seems to idle low and have a sulphur smell from the exhaust. Has a bit of misfire as well. We have change all injectors,coils and plugs. Could this be a fuel pressure issue? NO check engine light or codes

 

[zora]

rent or buy a fuel pressure tester. Check the fuel pressure regulator vacuum line for gasoline. If you see gasoline the FPR needs to be replaced. The smell may indicate the converter needs to be replaced. Do you buy your gasoline from the same station all the time?

 

[jlds91389]

I have a few stations that I use . I was thinking that to so I tried a few places with no change