Frank van Hoof wrote:
> I have a check engine code P0135 in on my 98 Civic, which is supposed to be
> the primary oxygen sensor heater.
>
> Is this the oxygen sensor nearest to engine - just in the top of the exhaust
> manifold, or the one further down?
>
> Any comments on aftermarket Oxygen sensors?

stick with oem sensors. aftermarket like bosch will get you through
emissions, but their reaction times are very poor compared to oem, and
performance consequently sucks. i did some experimentation with
different sensors i'd got from a junkyard. no doubt about it, oem is
the way to go.

>
> Frank
>
>