who knowns what the difference is between the bosch 0258 007 057 and the bosch 0258 007 123 wideband sensor..

I know the lead is longer on the 0258007123 when compared to the 0258007057 are they the same sensor in all particle sense.

the longer lead would be very dandy which i have 2 off,as well as another stuffed 0258007123 adding to the growing collection.

cheers

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Black UK 96 205 shed with heater full on telemetry.

project six million dollar 185, faster, stronger, lighter than before.

Does Google help?

Looking forward to seeing the swathes of datalogging info you are collecting!

_________________
Kris
95 ST205 - slept for 10 years, now waking up...
Avensis
http://www.gtfours.co.uk
_______________________________________
Turbocharging - the replacement for displacement

google is no use thanks any way.

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Black UK 96 205 shed with heater full on telemetry.

project six million dollar 185, faster, stronger, lighter than before.

cheers guys ,,,,,got local mtr factor to supply 63 inc vat bosch ...

its typical they fail when you are in the middle of something important.

_________________
Black UK 96 205 shed with heater full on telemetry.

project six million dollar 185, faster, stronger, lighter than before.

Did you find a difference between the 2 sensors?

_________________
Kris
95 ST205 - slept for 10 years, now waking up...
Avensis
http://www.gtfours.co.uk
_______________________________________
Turbocharging - the replacement for displacement

Seems that finding manufacturers data sheets for wideband sensors is very difficult. I spent an age trying to search for bosch/VAG part numbers for the wideband sensors on my LC-1. I have heard that there is a longer wire version of teh standard sensor and also plenty of sensors out there that have different connectors but "still work" once connector swapped. I can't however provide a concrete response to your question.

How are your sensors failing DJ? I also have a wideband graveyard but is normally due to user error.
1) died after 100 miles (forgot to switch it on for a 10 mile journey and heater open after)
2) erghh exited tailpipe stage left at 90 MPH aftera failed attempt at a tailpipe fixing setup.
3) lasted 6K miles and was dead one morning for no apparent reason.

_________________
JP
GT4DC Treasurer

Grey St185 RC
Silver BMW E46 M3
Multicolour yawn Honda VFR400
Silver Honda Civic Type-R

HI JP.

they fail from using oem narrow band install area, I know i should not, but some installs have no other option, they run toooo hot up top.

others failed from running too lean for too long getting to hot, apart from that they seem okay.

once pump open error, time to think about replacement, often a full recal will sort but the end is neigh.

like having a few spare,like using them over slow narrow band.

Why not knock up some spacers/heatsinks for them Jon

I think Innovate recommend using a heatsink if too close, iirc they sell them aswell

_________________
Kris
95 ST205 - slept for 10 years, now waking up...
Avensis
http://www.gtfours.co.uk
_______________________________________
Turbocharging - the replacement for displacement

problem is when used too close they are just too close, even using copper heatsink will not stop them from the glowing heat... killing them .. its okay when they are mounted low down , this is not always possible..

spacing would be an option but the tip must remain in mid stream 60 quid a pope is not much of a price to pay, just charge it out..

At Race Retro the guys on the Graham Goode/Innovate stand showed us a nice tail pipe clamp for mounting the sensor. Not a permanent solution but fine for road mapping.

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp

Don, That is ok for full chat mapping but no use for light load/low rpm where you end up measuring some atmospheric air.

I can understand killing them if mounted at stock O2 sensor location (don't know how much cooler it is at the bottom of the downpipe though).

_________________
JP
GT4DC Treasurer

Grey St185 RC
Silver BMW E46 M3
Multicolour yawn Honda VFR400
Silver Honda Civic Type-R

That surprises me, why would they sell something that doesn't do the full job? The implication from your comment is that it is possible for negative pressure in the tail pipe i.e. for air to flow back UP the tailpipe . I would have thought that there would be positive pressure at all times even under light load/closed throttle.

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp

I agree with JP, tailpipe is not ideal.

The temps in the bottom of the DP with a big handful of sustained throttle is max ~500deg C

Haven't measured the temp just at the turbine exit

_________________
Kris
95 ST205 - slept for 10 years, now waking up...
Avensis
http://www.gtfours.co.uk
_______________________________________
Turbocharging - the replacement for displacement

not necesarily negative pressure - my comment was a little generalised/crap.

At idle the lag time from making a change to seeing it at teh tailpipe is considerable. Whilst there will be positive pressure in the exhaust the winds we have here may overcome them and mix if near the tailpipe which combined with the lag time is difficult to get it accurate when mapping. These are my experiences anyway of a reading that is not necesarily accurate/current under light load & low RPM. For full chat it is fine.

_________________
JP
GT4DC Treasurer

Grey St185 RC
Silver BMW E46 M3
Multicolour yawn Honda VFR400
Silver Honda Civic Type-R