Check engine light keeps coming on- P0140 P0160 (cleared)

[86mcss]

I removed my rear 02s and I turned off these codes with Hptuners but they keep coming back on. Why would this happen?

p0140 bank 1 rear 02
p0160 bank 2 rear 02

EDIT:
I forgot to add that it has been off and fine for over 6 months (no engine light). It just popped up out of no where this past week.

[Russ K]

Post your file, and I'll take a look at it for you.

Russ Kemp

[86mcss]

Thanks a lot.

I have everything to do with the rear 02's disabled. I do not know why the engine light would come back on for them.

Vehicle is an 2002 5.3 ECSB Silverado 4x4, XR265HR, Pacesetter LT's & ORY, Intake.


Also please make any changes you feel would be needed to my tune.

I believe my tranny is shifting to firmly right now. Do you think I have to much line pressure?

thanks alot Russ.

[Russ K]

I set codes P0140 & P0160 to no error reported, this will eliminate those codes. Codes P0174 & P0175 had the check mark removed from the SES box, I checked them for you.

You had the trans force motor current table lowered a lot, I leave that table stock & just zero the 100 psi column. Then I firm the shifts using the shift pressure tables. A Corvette 2-4 servo would really firm up the wot 1-2 shift. But give this trans tune a try. I left all your shift points & TCC lock up speeds alone. I also reduced the upshift torque management tables by 50%.

Your PE tables were still delayed as stock, so I made the changes to eliminate any delay going into PE.

Russ Kemp

[86mcss]

I set codes P0140 & P0160 to no error reported, this will eliminate those codes. Codes P0174 & P0175 had the check mark removed from the SES box, I checked them for you.

You had the trans force motor current table lowered a lot, I leave that table stock & just zero the 100 psi column. Then I firm the shifts using the shift pressure tables. A Corvette 2-4 servo would really firm up the wot 1-2 shift. But give this trans tune a try. I left all your shift points & TCC lock up speeds alone. I also reduced the upshift torque management tables by 50%.

Your PE tables were still delayed as stock, so I made the changes to eliminate any delay going into PE.

Russ Kemp

I owe you. What do you want for your time?

I have paypal.

[86mcss]

hey russ

when i try to open the file it tells me it failed validation check.

[Russ K]

You need 2.1.18 to use my files. Download the update from the customer page.

Russ Kemp

[86mcss]

Sorry about that.

Everything you did turned out great. What do I owe you for your time fine Sir

[MotleyDrew]

I removed my rear 02s and I turned off these codes with Hptuners but they keep coming back on. Why would this happen?

p0140 bank 1 rear 02
p0160 bank 2 rear 02

EDIT:
I forgot to add that it has been off and fine for over 6 months (no engine light). It just popped up out of no where this past week.

I am in the same boat...it just came up recently and I thouight I had everything disabled too !!!

Whats the fix?

[MotleyDrew]

Also how do you attach files?

thanks

[99blackFRC]

Russ is certainly a great asset to this forum