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Renault Traffic 1.9 F9Q 2005 - Misfire and smoke at 2500-2800 rpm #

Posted by Lee Channing on July 28, 2010, 1:50 pm

Year of Manufacture *: 2005
Engine Size and Code *: 1.9 F9Q
( Optional ) Scanner Used: Snap on Ethos

Good afternoon all

Got this traffic here it originally came in with this misfire at 2500-RPM checked for codes and got code 70 coherence between cam sensor and engine speed data mismatch. we have changed the crank sensor and the code is now gone however the problem with the misfire is still ongoing. The crank sensor, cam sensor,air flow meter, map sensor have all been changed timing checked, vacuum checked intercooler checked,turbo checked, cat checked for blockages and the misfire is still there can anyone throw any light on this for me.

help appreciated many thanks

Re: Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm

Posted by Carl Ford <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1822' width='330' height='300' border=0 style='border:none;'> on July 28, 2010, 6:21 pm, in reply to "Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm"
Carl Ford

What are your readings for map, air flow, fuel pressure so we can try and figure out where the problem is then take it from there also a smoke test may help

Hth

Re: Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm

Posted by Alan Kane <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5535' width='330' height='300' border=0 style='border:none;'> on July 28, 2010, 9:22 pm, in reply to "Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm"
Alan Kane - Administrator

Doesn’t the Ethos have a movie mode (data logging)? Have you looked to see what changes in live data when the fault occurs?

Re: Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm

Posted by Neil Mellor <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2785' width='330' height='300' border=0 style='border:none;'> on July 29, 2010, 9:15 am, in reply to "Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm"
Neil Mellor

The original code is usualley logged when the cam pulley has broken the keyway on the camshaft.

Maybe worth a check.

Re: Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm

Posted by Lee Channing <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1740' width='330' height='300' border=0 style='border:none;'> on July 30, 2010, 7:34 am, in reply to "Re: Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm"
Lee Channing

thanks all for replies problem sorted
cheers

Re: Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm

Posted by Pete Mutlow <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1569' width='330' height='300' border=0 style='border:none;'> on July 30, 2010, 10:45 am, in reply to "Re: Renault Traffic. 1.9 F9Q Missfire and smoke at 2500-2800 rpm"
Peter Mutlow

Hi Lee,

How?

Regards

Pete M

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