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newbie question on diagnostic codes 

 

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 Post subject: newbie question on diagnostic codes
Posted: Sun Mar 04, 2018 3:21 pm 
Fordmods Newbie
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Age: 45

Posts: 12

Joined: 29th Mar 2010

Ride: Ford ED Sprint

Location: Cairns
QLD, Australia

My ED Sprint is using too much juice (18-20l/100km around town) so I've run a KOEO test and it gives codes

34 (all tests EVP voltage above closed limit)

41 Right HEGO circuit faulty

91 left HEGO circuit faulty

It's recently had both O2 sensors replaced (due to the same codes).

Question is, when running a KOEO test, are those codes generated during the test, or is it accessing previously stored codes (that haven't been deleted)?
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 Post subject: Re: newbie question on diagnostic codes
Posted: Sun Mar 04, 2018 3:45 pm 
Getting Side Ways
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If the 02 sensors have been charged you should just be able to clear codes and they shouldn't come up again.

 

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 Post subject: Re: newbie question on diagnostic codes
Posted: Sun Mar 04, 2018 4:05 pm 
Fordmods Newbie
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Age: 45

Posts: 12

Joined: 29th Mar 2010

Ride: Ford ED Sprint

Location: Cairns
QLD, Australia

thanks yeah as it's still using too much fuel I'm wondering if it could be the wiring/connections that are causing the fault
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 Post subject: Re: newbie question on diagnostic codes
Posted: Mon Mar 05, 2018 11:28 am 
Getting Side Ways
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If the codes come back after being cleared then I'd agree could be a wiring issue.

 

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