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renault scenic 2002 issues (Read 6,434 times)

bangshout Freshman Member Offline Posts: 23 south yorkshire United Kingdom Gender:	renault scenic 2002 issues Apr 9^th, 2015 at 1:16pm I have a few on going issues with my sisters renault scenic over fuel trims and monitors,High short term fuel trims positive and non continuous monitors not complete for catalyst and oxygen sensor Im presuming these non complete monitors are linked to my replacing both the o2 sensors,could it explain the crazy fuel trim figures?
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Abndanger LSD Guide Picogroup Offline Posts: 2,141 Grand Rapids, Mi Michigan USA Gender:	Re: renault scenic 2002 issues Reply #1 - Apr 9^th, 2015 at 4:48pm Bang, try to do a KAM reset or disconnect the battery and touch the leads together and see if it will force the fuel trims to relearn. Make sure you drive it and do some partial & WOT shots
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bangshout

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south yorkshire
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Gender: male

Re: renault scenic 2002 issues
Reply #2 - Apr 11^th, 2015 at 11:36am

Abndanger wrote on Apr 9^th, 2015 at 4:48pm:

Bang, try to do a KAM reset or disconnect the battery and touch the leads together and see if it will force the fuel trims to relearn. Make sure you drive it and do some partial & WOT shots

Cheers for that Ive carried out the reset with the battery disconnected and the engine does seem to be running a lot better,not checked the fuel trims after that as of yet but Ill get somebody to drive it while I do.
The other point I failed to mention is their are trouble codes logged but there is no engine management light illuminated and no freeze frame data for the codes.The codes are po136 and po5o5.

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StitchB

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lake stevens
Washington
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Re: renault scenic 2002 issues
Reply #3 - Apr 16^th, 2015 at 5:13am

Abndanger wrote on Apr 9^th, 2015 at 4:48pm:

Bang, try to do a KAM reset or disconnect the battery and touch the leads together and see if it will force the fuel trims to relearn. Make sure you drive it and do some partial & WOT shots

Abandondanger,

find this interesting, always good to read as I know on VW and missed by a lot of very good Techs is the Throttle body relearn. I have fixed cars that have been to multiple shops over several years and the owner is @ their witts end. Techs I feel the are far superior to me in the vain of work history but don't know about this and how critical it is on VW in particular.

StitchB

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