Engine Code Help Please

[drbob]

I had a engine light come on, didn't notice any drivability issues. With the Predator I was able to pull these two codes:

P0131 02S Circuit Bank 1 Sensor 1 Low Voltage
P0151 02S Circuit Bank 2 Sensor 1 Low Voltage

Can anyone help me with what these are?

TIA


drbob

After checking the fuse as suggested, I realized this may have been my fault. Last fall before I put the SSR up for winter I was annoyed at the amount of black buildup on the tailpipes. I thought if I leaned out the mixture a little with the Predator it might help. I did this twice over about 3-4 weeks, didn't notice anything different and put the SSR up for winter and forgot about the changes. Jump ahead to now, been driving the SSR for a little over a month, a lot more in the last few weeks and I get the above problem. I have deleted the codes, reset the mix and I'll see what happens.

drbob

[poppa]

Originally Posted by drbob

I had a engine light come on, didn't notice any drivability issues. With the Predator I was able to pull these two codes:

P0131 02S Circuit Bank 1 Sensor 1 Low Voltage
P0151 02S Circuit Bank 2 Sensor 1 Low Voltage

Can anyone help me with what these are?

TIA


drbob

No telling for sure could be the ignition switch thing but considering you have a 03 I'd have the battery tested just my .02??

[BSTPAPA]

You Should Not Be Getting Low Voltage Reads From Both Sensors At Once, You Need To Go To A Shop That Has The Equipment To Evaluate Your Problem Properly Or Go To A Dealer For Diagnostics.

[joel]

It's possible the aftermarket headers and/or an aftermarket air filter have screwed things up, but if you still have the original ign switch, that's my bet. Also, high mileage could have worn them out.

The power for these 2 sensors comes FROM THE IGNITION SWITCH to fuse 25 underhood to the sensors and then to the pcm. THEY HAVE A COMMON POWER SUPPLY. You could check the voltage at fuse 25 with the ignition on, but you may or may not indicate a problem.

These ign switches have been problematical and have been updated with a new switch #15242754; don't install the old part #, whatever that is. Also, if you have the repair done, don't let someone tell you you needed sensors, wiring harness, pcm, AND IGNITION SWITCH!!!!!!!!

[drbob]

Thanks everybody,

I have the extended warranty if its a big problem. I may start with the ignition switch. I know there are directions on the forum on how to change it, have to leave the house now will do a search later.

drbob

[joel]

P.S. Wouldn't hurt to check fuse 25.

[drbob]

See my update in first post.

drbob