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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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Sep 30th, 2021, 13:28 | #31 | |
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Sep 30th, 2021, 13:41 | #32 |
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I've seen a few UK cars with it, from the time Volvo were offering a free "upgrade" to a catalytic converter with "LambdaSond" which is only swedish for Lambda Sensor.
Luckily most sensible owners opted for the straight K-Jet, not the KE-Jet.
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Sep 30th, 2021, 18:21 | #33 | |
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In the UK The "lambdasond" badged late 700/900 range went straight from K jetronic to Motronic/ LH Jetronic for the 1990 model year .. In the UK anyway which is my speciality having worked on them for the last 45 years on a professional basis. I certainly don't remember doing any "free upgrades " on new cars or as a recall ... There we some strange USA versions for the Californian emission regulations in the late 80's which also applied to the Delorians of the time. The wiring diagram for those are in the volvo manuals of that age . there was an injector in the fuel return line which they used to lower the fuel pressure in the Control pressure regulator hence increasing the mixture strength quite well in response to the lambda sensor . I never came across one of those .
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Sep 30th, 2021, 18:53 | #34 |
bob12
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To clarify .... in the UK the Lambda Sond badge on the front grille and word 'Catalizer' on the tailgate below the model designation was first introduced in the UK on 1 Jan 1990 on the 700 Series when the free option to upgrade the engine management system to Bosch Jetronic LH2.4 with B2xxF engines was introduced.
At its last MOT in August the emissions test result on my 31+ year old 745 still on the original Cat was CO 0.16% and HC 48ppm against a permitted 3.5% and 1200ppm under the then prevailing old rules applicable to 1990 cars. Bob Last edited by bob12; Sep 30th, 2021 at 19:02. |
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Sep 30th, 2021, 19:28 | #35 | |
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These days they would simply pass the BET as Bob alludes to, my 760 showed 0.6% and 80ppmHC on a recent emissions test, no cats or Lambda sensors in sight! Still had to remind the tester that it was a very good pass and nowhere near a fail, just waiting to put my other beast in that despite being 1994 and having a cat, has a dispensation (which can be found on the database used by the testing machine) for only having to pass the BET test instead.
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Sep 30th, 2021, 22:06 | #36 |
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Yes just US spec. I have seen Mercs in the UK with KE
Some 740's did get a TPS switch on K jet but never KE |
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