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Old 11-06-2006, 12:19 PM   #1
Markybee
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Laguna II 1.9 Dci engine light /power loss

Hello, Just wondered if anyone could help, we've got a laguna and the engine management light comes on, been reset a couple of times, but comes back on usually only after constant driving of a 100 mile or 200 mile journey. A motorway journey at a constant speed then you accelerate/decelerate the light comes on and loss of turbo, no power.

Fault code is 332 intake air circuit, So far its had an air mass meter, new glow plugs, Throttlebody cleaned, New EGR valve, map sensor. ECU been checked all o.k.

Vehicle been to renault dealers had it for a week and couldn't fault, when light came on and been on diagnostic same code they suggested air mass meter but thats already been replaced so now they just suggest replacing parts.

Any one can help with this?
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Old 09-07-2008, 03:11 PM   #2
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Re: Laguna II 1.9 Dci engine light /power loss

I have the exact same problem.

Some additional information:
It occurs mostly at high loads, i.e.
- high speed (150km/h) after a longer period of driving in the 6th gear and then trying to accelerate a little
- this is especially typical when using the cruise control (tries to accelerate on a slope)
- when driving in the mountains and climbing in a gear that appears to be to high (3rd in stead of 2nd)

Also after a break (petrol stop or a bit longer) and then accelerating again on the highway.

Any help appreciated!

Ferry
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Old 04-06-2009, 02:02 PM   #3
thunnisett
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Re: Laguna II 1.9 Dci engine light /power loss

is the warning light the glow plug / elecrical fault light? (Orange coil pic)? if so then i got the same..... losing power and ligt stays n.only started whn I driving 100mph on motorway for 40 mins
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Old 04-06-2009, 02:41 PM   #4
ftoth
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Re: Laguna II 1.9 Dci engine light /power loss

Exactly, the electric fault light goes on.

After stopping the car, turning the engine off and on again, the light goes off and turbo/power are back to normal.

I found that switching back one gear before accelerating prevent the problem from happening.

Question is: how to solve this permanently. My guess is a software problem.

Ferry
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Old 04-06-2009, 03:04 PM   #5
thunnisett
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Re: Laguna II 1.9 Dci engine light /power loss

i turned mine off and back on again 40 mins later and it is still on.....
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Old 04-07-2009, 11:52 AM   #6
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Re: Laguna II 1.9 Dci engine light /power loss

Have now had the problem fixed..... It was a solid build up of oil & carbox in the pipes where the throttle bits are. A mobile mechanic cleaned it all out for £60 and it works perfect now.
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Old 12-18-2009, 09:11 AM   #7
valeri_s_k
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Re: Laguna II 1.9 Dci engine light /power loss

The other suspected is the electric valve that opens/closes turbo wastegate.. Just clean it inside trough pipes with penetrating spray and will forget about the problem for long time...

Also clean EGR valve each 20k km
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