> GUEST wrote:
> I have replaced the front heated oxygen sensor with a Mazda
> fix a fault consistent with the P1135 indicator and I have
> engine code/CEL. However, whenever I wind up the engine above
> the engine light, the P1135 code and 2 sensor indicators
> is) come up up again. I have searched the net for equivalent
> modes and I can find some cases when this has occurred, but it
> that people have not posted the subsequent solution. The engine
> run rough at all at any RPM and there is no lost of engine power.
> P1135 code is the only one that gets triggered. This is a bit
since other failures associated with the coil, etc. triggered other
> codes in
some of the web postings I have read.
> Is this an indicator of problems in
the VICS, the coil pack, the
> EGR/ducting or what? Unless the new Mazda OEM
front O2 sensor is
> bad, I think the P1135 indicator is a mis-mapping of
> Thanks for any help or follow on discussion.
> Zoom, zoom, zoom. :-\
> (original owner Miata 2000 SE,
48,000 miles, one year old NGK plugs
> cables, good battery, everything
else is original)
Rha: I am
currently having the same problem. Just purchased a
and I got two codes last week, a PO300 and P1135. Fixed the plug
and no more PO300, but I can't keep the car from showing a P1135 once
go WOT. It appears to be the same problems you were having back in
'07. I am
curious on if you found a final diagnosis, was it a bad
ground? I've replaced
the plugs and plug wires. 'm tempted to just
take it in to the miata dealer but
will be getting my hands on a jack
next week so I think I'll wait to look at the
rear O2 sensor wiring.
Let me know if you have any input. Thanks for your time.