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Clio 1.5 dCi

Posted By Hammond_Auto 1/10/2012 5:27:05 AM
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Hammond_Auto
 Posted 1/10/2012 5:27:05 AM
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Hi, not spent much time on this one yet,
2001 Renault Clio dCi, 1.5, engine K9K704.

When the car is cold it takes about 15 seconds of cranking to start it, fuel pressure goes up well above 300 bar (on my live data on Opus CMT Pro), then it is fine again for the rest of the day, starting within two or 3 seconds. Glow plugs are new (not by me) and are working OK.

Fault codes are as follows....

DF113 Refrigerant pressure sensor circuit, short to ground, Permanent.

DF116 Camshaft sensor circuit, coherence, permanent.

DF111 Cold loop AC relay control circuit, short circuit to +12V, intermittent.

I am after some clues before I start to dig deeper, from experience with the petrol models I know these can get expensive quickly....

Thanks in advance.

HA

Damian
 Posted 1/10/2012 6:23:18 AM
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Hi Hamond

what is it like when warm?

I would start by checking cam sensor power,earth and signal, its possible the air con pressure sensor has the same supply and pulling the voltage down so mabe disconnect that too.

Damian

Hammond_Auto
 Posted 1/10/2012 6:34:11 AM
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Hi, thanks for the reply, starts fine when warm.
As far as i can see on the AD wiring diagrams they dont share wiring but I will check it out more thoroughly.

Thanks

HA
Angus
 Posted 1/10/2012 1:06:51 PM
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HA

Most common-rails need to see cam-crank synch before they'll fire the injectors.

Is there a belt problem that's putting the pump to crank synch out?  (Cam sensor reads off the pump sprocket.)

.

Favell
 Posted 1/11/2012 9:14:03 AM
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Hi Hammond.

I agree with Angus, check through the cam sensor fault and that could well sort it.

The rings can easily gum up on these and cause low compression when cold. I have known these to misfire when cold and be fine when warm. so if when the cam sensor issue is sorted there is still poor starting it's always worth checking compressions.

Two bottles of Forte motor flush at fast idle for approx 30 mins usually sorts it.

Fav

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