PO Code 2099 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

spyderbuddy · 04-09-2023, 11:58 AM

any one have a run in with this code
everything checks with a code reader, All O2 sensor seem to be working

gtstorey · 04-09-2023, 01:41 PM

Service manual says
Exhaust leak
Low fuel pressure
Engine vacuum leaks
Fuel contamination
Lean fuel injectors

Says it isn’t o2 sensor without other codes

Basically engine is running lean during 17-65% load and trims can’t correct enough.

spyderbuddy · 04-09-2023, 02:22 PM

Quote:

Originally Posted by gtstorey

Service manual says
Exhaust leak
Low fuel pressure
Engine vacuum leaks
Fuel contamination
Lean fuel injectors

Says it isn’t o2 sensor without other codes

Basically engine is running lean during 17-65% load and trims can correct enough.

That's different?

thanks

04-09-2023, 11:58 AM	#1
spyderbuddy Drives: 2010 RS Inferno Orange Metallic Join Date: Mar 2010 Location: Albany, Ga. Posts: 3,474 View My Garage	PO Code 2099 any one have a run in with this code everything checks with a code reader, All O2 sensor seem to be working

04-09-2023, 01:41 PM	#2
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,450	Service manual says Exhaust leak Low fuel pressure Engine vacuum leaks Fuel contamination Lean fuel injectors Says it isn’t o2 sensor without other codes Basically engine is running lean during 17-65% load and trims can’t correct enough. Last edited by gtstorey; 04-09-2023 at 07:00 PM.