My Z-28 has 114,000 miles on it, and is throwing P00137 and P00157 codes. Thses are O2 sensor codes, specifically they are saying low voltage on both sensors.
Here's the quesion though. My Z is one of teh 2000 models that GM sent out a service notice about extending the warranty on teh cat because of cat failures on the 5.7 l, 2000 models and they'll repalce teh cat free up to 120,000 miles.
Could a cat failure be causing it to throw these codes? In order to have the dealer check it, they want $100 diagnosis fee up front, and I don't want them to just say-it's teh O2 sensors, that'll be $600 when it's actually the cat and they'll get reimbursed for it and never have to tell me.
Oh, and one more thing. I have posted before about having problems with power loss at around 2800 to 3800 RPMS, and that it feels almost like it fuel starvation. Could the O2 sensors (or cat) be causing this, and does that signal at all which one it might be?
Help is greatly appreciated.
Here's the quesion though. My Z is one of teh 2000 models that GM sent out a service notice about extending the warranty on teh cat because of cat failures on the 5.7 l, 2000 models and they'll repalce teh cat free up to 120,000 miles.
Could a cat failure be causing it to throw these codes? In order to have the dealer check it, they want $100 diagnosis fee up front, and I don't want them to just say-it's teh O2 sensors, that'll be $600 when it's actually the cat and they'll get reimbursed for it and never have to tell me.
Oh, and one more thing. I have posted before about having problems with power loss at around 2800 to 3800 RPMS, and that it feels almost like it fuel starvation. Could the O2 sensors (or cat) be causing this, and does that signal at all which one it might be?
Help is greatly appreciated.
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