P0135 Help ASAP

[chief98ls1]

got my car tuned by frost i could tell the difference thanks man , but i was crusieing around got the ses and started to get hesistation like a constant poping sound when i slamed the gas .im running long tubes and ory pipe.

seems like i probly need to upgrade my o2s to 13111's ?

[Frost]

got my car tuned by frost i could tell the difference thanks man , but i was crusieing around got the ses and started to get hesistation like a constant poping sound when i slamed the gas .im running long tubes and ory pipe.

seems like i probly need to upgrade my o2s to 13111's ?

Stock MAF? Doesn't sound like O2's, sounds like a lean spot. I will review your PCM sheet and file and send you an email shortly.

[cballweg]

Is the po135 code 02 sensor bank 1 sensor 1 on the drivers side or passenger side ?I got this code also with long tube headers

[Cutlass]

Bank 1 is the drivers side