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| UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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o2 sensors
is it the upstream sensor one or the downstream sensor two that has the
biggest effect on MPG ? ..... |
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#2
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o2 sensors
On 31/01/2020 17:14, Jim GM4DHJ ... wrote:
is it the upstream sensor one or the downstream sensor two that has the biggest effect on MPG ? ..... ....if faulty |
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#3
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o2 sensors
On Friday, 31 January 2020 17:16:03 UTC, Jim GM4DHJ ... wrote:
On 31/01/2020 17:14, Jim GM4DHJ ... wrote: is it the upstream sensor one or the downstream sensor two that has the biggest effect on MPG ? ..... ...if faulty Only the upstream is within the fuel control feedback loop. The downstream really just determines if the cat is working or not. |
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