Peter wins the music. ;-) Here is a good thread on Miata.net explaining the
code.

http://forum.miata.net/vb/showthread...ighlight=P1135



"Peter Chupity" > wrote in message
...
> In article .com>,
> says...
>
>> Thank you again, but my local Mazda dealer courteously told me
>> to fork off, I'd have to come in with the car to tell me what OBD 1
>> code # 7135 (or 1135- writing was terrible) denotes. At, I assume,
>> their minimum rate of 1/2 hr and 40 dollars.
>
> On my '98, the 1135 code means the front O2 sensor ~heater~ has gone
> open circuit. I had this happen, and replaced the sensor with a generic
> version (required splicing leads) as the dealer didn't feel this was
> covered under the emissions warranty. The generic was cheap enough and
> the install simple enough that it wasn't worth arguing.
>
> Post mortem on the sensor showed that the connection to the heater
> element had broken off at the braze. I think it's a manufacturing
> defect...
>
>> If anybody can tell me what those codes are, I'll send you
>> something really nice if you like music. (If you don't, I'll think of
>> something else!)
>
> What kind of music???