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Thread: Cheapest place to buy genuine 02 sensors

  1. #1
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    Cheapest place to buy genuine 02 sensors

    Hi all. I need new 02s. I am not after chinese replacements (which are in there now and have been good for 3 years) but genuine bosch. Whats the best place to pick them up in Aust...dont want to import them

    Cheers

  2. #2
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    ...its probably the same place that you can buy the cheapest genuine MAFs...any takers?

    Cheers

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    Quote Originally Posted by ozscott View Post
    ...its probably the same place that you can buy the cheapest genuine MAFs...any takers?

    Cheers
    No but would be interested.....

    What symptoms did you have to show imminent failure...

    James

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    My LPG system is dependent on one of them. And it was going out of tune. It was still cycling but it doesn't have to be that fast for petrol. LPG is more touchy. Cheers

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    From memory they are just a type of 0-1 volt sensors, you should be able to get universal O2 sensors from Bosch which come with special connectors to reuse your plug. The Bosch O2 sensor catalogue is a bit dodgy but the universal sensor listed for the P38 (Motronic) is 0 258 986 505 which is a 4 wire unit.

  6. #6
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    Some Bosch are made in USA and have 11/16" x 16tpi UNS threads. Some are made in the metric speaking world and have M16 x 1.5 threads. One will not screw into the receptacle meant for the other. I know, I have had the experience.
    URSUSMAJOR

  7. #7
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    Quote Originally Posted by ozscott View Post
    My LPG system is dependent on one of them. And it was going out of tune. It was still cycling but it doesn't have to be that fast for petrol. LPG is more touchy. Cheers
    Which make of LPG tanks are you running.... And more importantly where are your tanks located and size... also distance capabilities please...

    Wanting to be able to cover distance but not use the boot space for a tank...

    Cheers

    James

  8. #8
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    Quote Originally Posted by twodoors View Post
    Which make of LPG tanks are you running.... And more importantly where are your tanks located and size... also distance capabilities please...

    Wanting to be able to cover distance but not use the boot space for a tank...

    Cheers

    James
    Dirty oxy sensors are slow to cycle and therefore you run richer on average. So loss of economy is first. Also they tend to lean out drastically when they first start to warm up due to water condensation tracking the heater voltage to the output terminal. This can cause a dangerous power sag as you drive off in the mornings, just as you pull out into the traffic.

    If you are running a D2 you get two APA or Manchester LPG tanks underneath which hold 70 litres of LPG and get about 4 to 5.5 km/l depending on how it is driven. Brown Davis do a rear corner petrol tank, holds about 40 or 50 litres. An injection kit with all new parts will cost you in excess of $5K fully installed.

  9. #9
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    Gday all. In the D1 I have 2 tanks between the rails underneath where the petrol tank was then a 35l sub tank in the rear quater. In the D2 i have a manchester 3 scuba style that only add about 200mm to the floor and leave the sides free where you woudl have the cubby boxes...I did a false floor with storage and its sweet. Overall 58 useable litres. That gets me 320k odd in and out to the city (Briss) from the burbs.

    Cheers

    PS, Bee-utey - can the 02 sensors getting old (mine have done 167k) cause a lean condition sufficient to cause intermittment misfire after accelerating off the line from stationary idle - ie just started accelerating and a misfire - intermittment?

  10. #10
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    Quote Originally Posted by ozscott View Post
    Can the 02 sensors getting old (mine have done 167k) cause a lean condition sufficient to cause intermittment misfire after accelerating off the line from stationary idle - ie just started accelerating and a misfire - intermittment?
    Yep, the overly lean mixture will test your ignition system to the max. Slow (dirty) sensors are a pain for leaning out when just warming up, then running skightly richer when hot, losing economy. The Bosch sensor catalogue says the design life for these sensors is 160K.

    I usually set plug gaps in Thor engines on gas to 0.6mm/0,024" to allow the engine to run better with lean mixtures. Haven't had any running issues reported yet at this plug gap.

    BTW I looked at a D2 sensor on ebay in the US and it looks to me like the standard metric M18x1.5 thread I know from my D1 retrofits. Personally I would get an AU Ford sensor (Bosch 0 258 986 603) and crimp/heatshrink it to your plug end. It has the 4 wire connection. Or pinch an AU harness plug from the wreckers and make an adaptor cable from your old sensor cable.

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