m50 o2 sensor bypass??

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BATTS91
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Post Sat Jun 30, 2012 10:32 pm

any way of bypassing o2 sensor on m50 ive heard this is possible with resistors and bits , any gurus out there ??
B15NAC
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Post Sat Jun 30, 2012 10:36 pm

Just out of interest why do you want to? Does the lambda do much on a m50?
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Brianmoooore
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Post Sat Jun 30, 2012 10:37 pm

An O2 sensor can be replaced by a square wave generator, operating at about 2Hz or so. This is quite common with mixer type LPG systems, with electronic control.
BATTS91
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Post Sat Jun 30, 2012 11:12 pm

well i have put my idle problem down to no lambda sensor as wen engine is cold its fine but wen warm it hunts .

ill have a google now brian thanks , anywhere you can suggest ?
DanThe
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Post Sat Jun 30, 2012 11:24 pm

Much easier to just fit a lambda IMO
BATTS91
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Post Sat Jun 30, 2012 11:36 pm

yeah but drilling holes welding on aboss an £80 for a lambda cba mate the car hardly gets used , i start a new job soon and ill be saving for a new e30 an this one can just be abused at santa pod dwyb

looking those up there abit technical , any more info advice on them brian ? some on the bay for like £6 on the ebay but how to wire them up me dont no lol ive red u use a 9v battery lol
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Brianmoooore
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Post Sun Jul 01, 2012 12:26 am

I answered the initial question as asked, but Dan's right, it's much easier to fit a sensor if there's no other reason for the OP than your car doesn't have one.
18mm nut sawn in half, a hole drilled in a downpipe, a bit of MIG action, and a second hand sensor from a scrapyard, and the jobs good. The red touring in my sig. ran for about four years with a lambda sensor with FoMoCo stamped on it.
BATTS91
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Post Sun Jul 01, 2012 2:42 am

hmmmm ill see what the breakers yard has got in stock n go from there , them sqaurewave generators are too technical for me cheers ,