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Renault Scenic 1.9 DCi 2005 - Code P0487 EGR or TPS fault? #

Posted by Matt Harrison on January 17, 2011, 9:39 am

Year of Manufacture *: 2005
Engine Size and Code *: 1900cc DCI
( Optional ) Scanner Used: TRW easy check
( Optional) Fault Codes: P0487

Hello,
I have got in a 2005 (55 plate) Renault Scenic, 1.9 dci, i went out to it about a fortnight ago for a code reading, it came up with P0487 EGR system - throttle position control system malfunction. I cleared it but came back on following day, the car itself drives fine customer not complained of lack of power etc.
I've been reading up on the net and there is quite mixed opinions about this. some say egr valve fault some say throttle pedal. Has anyone else came across this???
I have cleaned egr valve and piping but it wasn't too bad.

Thanks

Re: Renault Scenic - P0487 EGR or TPS fault???

Posted by matt harrison <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3187' width='330' height='300' border=0 style='border:none;'> on January 17, 2011, 10:21 am, in reply to "Renault Scenic - P0487 EGR or TPS fault???"
Matt Harrison

forgot to mention - following autodata testing of egr valve resistance should be 8 ohms between pin 1 and 5 which ive got, then it goes on to test pins 2 and 4 and 2 and 6(egr position sensor) which should be about 4k ohms, neither of which have any resistance
maybe ive answered my own question as this definately points to egr valve itself though i dont want to spend 150plus vat on new one.

Re: Renault Scenic - P0487 EGR or TPS fault???

Posted by aidan <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on January 17, 2011, 1:56 pm, in reply to "Re: Renault Scenic - P0487 EGR or TPS fault???"
Aidan Birley

Hi matt

Any intake throttle valve fittedon this to increase EGR ?

Cheers Aidan

Re: Renault Scenic - P0487 EGR or TPS fault???

Posted by matt harrison <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3187' width='330' height='300' border=0 style='border:none;'> on January 19, 2011, 1:22 pm, in reply to "Re: Renault Scenic - P0487 EGR or TPS fault???"
Matt Harrison

not sure too be honest with you, i have now changed egr and still got same problems - it currently with renault specialist and see what he can find.

Re: Renault Scenic - P0487 EGR or TPS fault???

Posted by Andy Evans <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5518' width='330' height='300' border=0 style='border:none;'> on January 19, 2011, 1:32 pm, in reply to "Re: Renault Scenic - P0487 EGR or TPS fault???"

Hi Matt,
2 questions, did you fit a gen EGR from Renault? and did you re-set EGR adaptives?

Andy E

Re: Renault Scenic - P0487 EGR or TPS fault???

Posted by matt harrison <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3187' width='330' height='300' border=0 style='border:none;'> on January 20, 2011, 2:50 pm, in reply to "Re: Renault Scenic - P0487 EGR or TPS fault???"
Matt Harrison

hi, yes genuine egr fitted, renualt specialist reset adaptions etc, apparantly there is a wiring or ecu fault present. so pin and loom testing required. there has been work done previous to me looking at it, a turbo was fitted and im thinking maybe wire caught, burnt, trapped??.

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