Cummins Diesel Forum banner
Cancel

2A01 or 2AD1 code

1708 Views 5 Replies 4 Participants Last post by  shskr, 
Fountain Puller
I got this on the key trick, engine light is on. Cannot tell if it is a D as in dog or a number 0 or a letter O as in oh crud another CEL. I cannot find this one...anyone know anything?:thud:
Reply
Save
Like
1 - 6 of 6 Posts
Compcowboy
P2A01 - Oxygen Sensor 1/2 Circuit Performance
Reply
Save
Like
Fountain Puller
oxygen sensor

So does that sound like the oxygen sensor recall issue? The truck was bulit in Aug of 07 as an '08. The light went away after two days and about 10 starts. Just keep driving it til it pops up and stays on?
Reply
Save
Like
Compcowboy
the o2 sensor recall was actually for the O2 sensor module, not the sensors. I would wait and see if it comes back. If it does, i would take it in and have it replaced.
Reply
Save
Like
D
I got that code once and it confused the guys at the dealership. They just cleared it. Pretty soon after I got the P2000 code (I'd had that code several times previously) and they replaced the O2 sensor. So far it's been OK with the new sensor. They reflashed the computer about the same time.
Reply
Save
Like
shskr
Got that code as well, the dealer just replaced the o2 sensor, instead of looking into what caused it.

They probably don't know what caused it, just throw parts at it.
Reply
Save
Like
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Cummins Diesel Forum
A forum community dedicated to all things Cummins Diesel! Originally founded for owners and enthusiasts of Cummins powered Dodge pickups, the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
03-07 Performance Parts Discussion 03-07 Powertrain 2013-2018 General Discussion 98.5-02 Powertrain 98.5-02 Performance Parts Discussion
Top