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[tigers_gonads]

just had a code 89 ............. 02 sensor 2 open circuit 

question time ............. which one is sensor 2 ??

cheers  steve

[Marks DTM Calib]

Easy, the same side as no2 cylinder e.g. passenger side

[tigers_gonads]

oh wonderful   

i have a rattleing cat on that side aswell 
do the o2 sensors ever brake off inside the pipe ( 02 open circuit ) ??
wondering if the rattle is bits of the sensor moving about in the down pipe / cat area ?

i have also got a running problem with it 
could the two be conected ?
on start up, the revs shoot up too around 2000  rpm and it will not pull below 3000 rpm and doing around 15 mpg but no further codes 
i as thinking along the lines of coil pack knac*erd since the plugs are new and i've changed the leads for a known good set 

[Marks DTM Calib]

I assume when you changed the leads that you put them on the DIS pack correctly.....particularly the 2-4-6 bank where the order is not obvious?

DIS pack connections are (from memory)

5 3 1
o-o-o
o-o-o
2 6 4

[tigers_gonads]

Yes, leads in the same order
car run like a dream for the first 50 miles then started to throw up codes........ All low voltage.
I thought it was from all the cranking and flattening of the battery so I cleared the codes.
Car still run cr@p so I went for the ht side. ......... Till it threw up a 89 code last night.

Drove it to a job this morning ( I'm sat in a loft  now lol ) and  it's running worse then ever !!!