P015B, P015D, P0420 Codes - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

rednecks70 · 09-15-2021, 07:57 PM

Just installed headers with hi-flow cats. Had the car out for two short rides and no codes, shifting at 3000 rpms max. Took it out tonight and passed another car going slow,again shifting at 3000 rpms. Got to the light and CEL is on, get home and scan the codes...P015B lean to rich bank 1 sensor 1, P015D lean to rich bank 2 sensor 1 so obviously it went lean. Also got P0420 for the cat but I was expecting that one.

Was going to drive the car 33 miles to get tuned after installing a 10% pulley but now I'm concerned. Anyone else have a similar experience?

Just did some research...seems I got the code because the O2 sensors have been moved and not necessarily a lean condition. Still would like to know if driving it on the highway for 33 miles is going to be an issue.

tartagliazl1 · 09-15-2021, 08:26 PM

Drive away, just don’t hammer it.

09-15-2021, 07:57 PM	#1
rednecks70 Drives: 2013 AGM ZL1, '70 Chevelle 454 Join Date: Apr 2019 Location: Willow Grove, PA Posts: 105	P015B, P015D, P0420 Codes Just installed headers with hi-flow cats. Had the car out for two short rides and no codes, shifting at 3000 rpms max. Took it out tonight and passed another car going slow,again shifting at 3000 rpms. Got to the light and CEL is on, get home and scan the codes...P015B lean to rich bank 1 sensor 1, P015D lean to rich bank 2 sensor 1 so obviously it went lean. Also got P0420 for the cat but I was expecting that one. Was going to drive the car 33 miles to get tuned after installing a 10% pulley but now I'm concerned. Anyone else have a similar experience? Just did some research...seems I got the code because the O2 sensors have been moved and not necessarily a lean condition. Still would like to know if driving it on the highway for 33 miles is going to be an issue. Last edited by rednecks70; 09-15-2021 at 08:10 PM.

09-15-2021, 08:26 PM	#2
tartagliazl1 Drives: 2013 zl1 vert Join Date: Dec 2018 Location: Rochester, New york Posts: 949	Drive away, just don’t hammer it. __________________ 22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 850/ dsx aux kit/ 103mm throttle body/ RPM 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ brick mod/BMR toe and trailing arms/ 751hp 757 tq SAE @17.3lb on a loaded dyno.