P2a03
Joined: Sep 2008
Posts: 158
Likes: 0
From: Costa Mesa,Ca SoCal
P2a03
I installed helix test pipes a couple of months ago. A few weeks ago my SES Light started coming on. I got P2A03 code. I already installed non fouler and this light keeps on coming up with the same code. Has anybody experienced this issue before? if you have, I would appreciate it if you gave me some info in how to repair this issue.
That code refers to your primary O2 sensor, the one in the header.
Check, and double check to make sure you don't have any intake leaks. One of toughest CEL lights we've ever had to diagnose was due to an errant intake install.
Just shoot us an email and we can bounce some ideas off eachother.
Check, and double check to make sure you don't have any intake leaks. One of toughest CEL lights we've ever had to diagnose was due to an errant intake install.
Just shoot us an email and we can bounce some ideas off eachother.
p2a00 “O2 Sensor Circuit Range/Performance, Bank 1 Sensor 1”
P2A03 “O2 Sensor Circuit Range/Performance, Bank 2 Sensor 1”
P2A00 and P2A03. Basically, they indicate that Sensor 1 is reading a rich or lean condition. The FSM lists several possible causes:
Air fuel ratio (A/F) sensor 1
Air fuel ratio (A/F) sensor 1 heater
Fuel pressure
Fuel injector
Intake air leaks
P2A03 “O2 Sensor Circuit Range/Performance, Bank 2 Sensor 1”
P2A00 and P2A03. Basically, they indicate that Sensor 1 is reading a rich or lean condition. The FSM lists several possible causes:
Air fuel ratio (A/F) sensor 1
Air fuel ratio (A/F) sensor 1 heater
Fuel pressure
Fuel injector
Intake air leaks
Joined: Sep 2008
Posts: 158
Likes: 0
From: Costa Mesa,Ca SoCal
Well I took off my intake today and put everything back on from scratch. I cleared the SES Light. I drove it now for about 20 miles and Haven't seen the light back on. I'm not sure how long it takes for the computer to trigger the light on. Should I unbolt my test pipes and tighten all the bolts again? It can be a leak from there as well right? This might be a dumb question, Is it necessary drilling a the first non fouler?
Last edited by evargas; Jan 26, 2010 at 12:58 PM.
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