CEL??? on and off?

[CTScott]

The O2 sensor may have gotten damaged while swapping it over to the new header.

[aspro]

Originally Posted by CTScott

The O2 sensor may have gotten damaged while swapping it over to the new header.

Possibly but a friend and I did the install and we were really careful when reinstalling the o2 sensor. It actually came out and went back in very easily. I guess I'll have to swap it and see if it works. It just sucks because the OEM sensors are bloody expensive and I refuse to use aftermarket sensors.

It can't be the header that is causing this, can it? Anyone with a DC header come across this issue?

[bronsin]

Originally Posted by aspro

It just sucks because the OEM sensors are bloody expensive and I refuse to use aftermarket sensors.

When the CEL went on in my sons 2000 ECHO I swapped MAF sensors with my 09 Yaris to troubleshoot. His code went away and my Yaris threw a code that how I knew it was the MAF.

Anyway I bought a rebuilt NAPA MAF for $90 and put it in my Yaris since the Yaris one was in his ECHO and he's hard to get a hold of.

We sold the ECHO and I forgot to swap sensors beforehand!

Its been a few years now and that $90 part still works!