When is a heated 02 sensor necessary ?

[Edmond]

Hey guys. I just wanted to ask this question to get some opinions. It looks like I might have to get one. I installed Edelbrock headers on my L98 engine and the brand new 02 sensor I put in, swings from like 54mV to almost 900mV at idle. I even got a "low 02" error code once from the ECM. Would a heated 02 sensor help alleviate this ? Is one necessary when putting headers on ?


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.diy-efi.org/pipermail/gmecm/attachments/20001101/829cbb34/attachment.html>