GM O2 sensor

[opfor2]

Just wanted to confirm that GM# 2133866 is the proper upstream O2 sensor for a 2011 Tahoe.?

 

[Doubeleive]

Just wanted to confirm that GM# 2133866 is the proper upstream O2 sensor for a 2011 Tahoe.?

yes it's $43 on rockauto, the denso is fine also 23444668 $29.79
don't be surprised if the oem one comes in a denso or delphi box
the delphi one is es20013 $40.79
truth of the matter is denso, delphi, ntk, bosch, ac delco all make 02 sensors for gm or have at some point in the past or future.
I have the denso's in mine at the moment

 

[opfor2]

yes it's $43 on rockauto, the denso is fine also 23444668 $29.79
don't be surprised if the oem one comes in a denso or delphi box
the delphi one is es20013 $40.79
truth of the matter is denso, delphi, ntk, bosch, ac delco all make 02 sensors for gm or have at some point in the past or future.
I have the denso's in mine at the moment

I presently have Denso’s on my upstream cat , i have a persistent P219A code that maybe might be caused by my AirAid MIT #200-996 or the O2 sensor I’m going to put the OEM intake back on this weekend and see what happens and if that doesn’t work I will do the sensors.

 

[Charlie207]

I presently have Denso’s on my upstream cat , i have a persistent P219A code that maybe might be caused by my AirAid MIT #200-996 or the O2 sensor I’m going to put the OEM intake back on this weekend and see what happens and if that doesn’t work I will do the sensors.

I have new GM (denso in the box) O2s upstream/downstream, and before swapping them out I was getting a P219A (and occasionally P219B) code when I hit close to redline. BBPerformance said it was a fueling issue, but everything was new, not leaking, healthy fuel pressure. After swapping in the new O2 sensors I dont remember getting any more P218 a/b codes.

 

[opfor2]

I have new GM (denso in the box) O2s upstream/downstream, and before swapping them out I was getting a P219A (and occasionally P219B) code when I hit close to redline. BBPerformance said it was a fueling issue, but everything was new, not leaking, healthy fuel pressure. After swapping in the new O2 sensors I dont remember getting any more P218 a/b codes.

I have checked and rechecked ever component and I find nothing. But the GM service book said that the use of non oem o2 sensors or modified air intakes could cause a P219a code. I will swap out the intake this weekend and see what happens and if that does ent work I will swap out the two upstream o2 sensors for OEM GM from Rockauto.

 

[j91z28d1]

I have no idea why and bearly believe it myself but it does seem like a DENSO part and a gm part made by DENSO are different some how.

and at the same time 99% of the trucks are perfectly fine with the non oem part, others throw codes.

it makes no sense to me, but seems to be true. at this point, I just buy the oem if possible. in the past I never did.

 

[petethepug]

Times are different. Unfortunately there’s nothing to stop a desperate or unscrupulous person from purchasing a $9.99 sensor off Amazon and returning it back to the GM part store on Amazon in the GM box they previously paid $99.00 for.

You’ve really got to be weary of whatcha get in the box these days because it could be someone else’s cheapśhit return.

 

[opfor2]

I just ordered two upstream Genuine GM 2133866 O2 sensors from RA and we will see what happens when I replace the Denso's 234-4668's this week.