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Renault Megane 1.6 16v 2001 - Non start, codes DF460 & DF464 #

Posted by Mike Hill on June 22, 2012, 8:37 pm

Year of Manufacture *: 2001
Engine Size and Code *: 1.6 16v
( Optional ) Scanner Used: snap on
( Optional) Fault Codes: DF460 - DF464

Hi All

I have had to go to a non start on a renault megane, the story goes he drove through a puddle an it cut out, not it been round the garages and now at my door.

first thing was the starter was knackerd, put a new one in an it now cranks over just will not fire, scanned it an the following code keep coming up after cranking DF460, DF461, DF462, DF463, DF464.

Now scanned under EOBD and no codes present but the codes always show on renault. but the ony description i get it coil control 1 - 4.

can any one shed any light as to where i should be looking? or elaberate on these codes?

thanks in advance.
mike

Re: Renault Megane

Posted by Carl Ford <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1822' width='330' height='300' border=0 style='border:none;'> on June 22, 2012, 10:09 pm, in reply to "Renault Megane"
Carl Ford

Do you have a scope?

What tests have you carried out so far?

What has everyone else changed?

Regards
Carl

Re: Renault Megane

Posted by Jim Power <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3202' width='330' height='300' border=0 style='border:none;'> on June 22, 2012, 10:30 pm, in reply to "Re: Renault Megane"
James Power

Hi
Dont know about the codes but a guess would be a multiable and individual missfire on each of 4 cylinders, crank sensor is a common problem
Jim

jim power

Re: Renault Megane

Posted by Kevin Apps <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2589' width='330' height='300' border=0 style='border:none;'> on June 22, 2012, 11:03 pm, in reply to "Renault Megane"
Kevin Apps

Mike.

"the story goes he drove through a puddle an it cut out"
A puddle !!! or a Lake.
Like Carl i would like to know what test,s have been carried out, as per posting guidelines.

Kev.

Re: Renault Megane

Posted by mike hill <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1084' width='330' height='300' border=0 style='border:none;'> on June 23, 2012, 7:57 pm, in reply to "Re: Renault Megane"
Michael Hill

hi, thanks for the replies,

all i got so far as i was a quick look on friday was what iv said. nothing has been changed as far as hes told me, most of the garages didnt want to look at it. yes i got a scope an ive done now tests bar a code read and as i said the starter as it wasnt even turning over.

i was thinking along the lines of crank sensor as this is at the base of the engine an poss got messed up in the puddle. just was hoping for more clarification on the DF codes as iv never seen them before. . there is no spark at all, and thats all i know until i get it again next week.

so will be going back to basics next week an pulling the old scope out.

thanks mike

Re: Renault Megane

Posted by Carl Ford <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1822' width='330' height='300' border=0 style='border:none;'> on June 23, 2012, 8:35 pm, in reply to "Re: Renault Megane"
Carl Ford

If you have a hunch about CKP, scope it at the ECU but with your fault codes being coil CONTROL maybe scope the primary circuit volts vs current to get a picture of what is going on.

Don't forget to post the captures so we can all have a look

Regards
Carl

Re: Renault Megane

Posted by Mark Carter <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on June 23, 2012, 8:58 pm, in reply to "Re: Renault Megane"
Mark Carter

>>> but the ony description i get it coil control 1 - 4. <<<

Question: How does the coil work and what does it need to have/see to generate a spark.

Mark

Modern cars, Its all wizardry and witchcraft

Re: Renault Megane

Posted by Paul Howd on June 24, 2012, 11:40 am, in reply to "Re: Renault Megane"
Message modified by board administrator June 26, 2012, 6:55 pm

Yup, Ive had a couple of those type of fault recently!

Dont know if is the problem in this case but frequently (it seems) fault code descriptions will appear to fault componants or controllers simply because a supply is missing! (Relay, Fuse etc)

It is always worth looking at the wiring diagram (Assuming Autodata has chosen to supply one) to look for a common root for the componants implicated....

Re: Renault Megane

Posted by keith brown <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1429' width='330' height='300' border=0 style='border:none;'> on June 25, 2012, 8:40 am, in reply to "Re: Renault Megane"
Keith Brown

had exact issue 2 weeks ago,n/s/f fuse board under bonnet,one of the black relays fuel pump,the other is ECU relay,that will be your problem hth keith.

Re: Renault Megane

Posted by Sean Mc Gettigan <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5291' width='330' height='300' border=0 style='border:none;'> on June 26, 2012, 10:52 am, in reply to "Re: Renault Megane"
Sean McGettigan

Just a note

'Dont know if is the problem in this case but frequently (it seems) fault code descriptions will appear to fault componants or controllers simply because a supply is missing! (Relay, Fuse etc)'

Not 'frequently' but always and a fault code generally does not fault a component or controller but a circuit. This is the bit that eveyone misses

Regards
Sean

Re: Renault Megane

Posted by Nick Favell <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3407' width='330' height='300' border=0 style='border:none;'> on July 2, 2012, 4:59 pm, in reply to "Re: Renault Megane"
Nicholas Favell

'Drove through a puddle'

and it's a megane, pull the black box out that sits behind the battery - these fill with water at the best of times and give all sorts of problems.

Sometimes we have been able to dry them out, some times the connectors are too badly burned, or there is an internal fault after getting water damaged, but start there first.

Nick

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