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HELP NEEDED ON RENAULT LAGUNA
01-03-2013, 05:48 AM
Post: #1
Renult HELP NEEDED ON RENAULT LAGUNA
Please i need help on my 2002 renault laguna inititale paris 3.0 V6 , the car starts and tells me fuel ignition faulty , Esp faulty , i called my friend and we used clip on the car and it showed the following error ;

DF121 - TORQUE REQUESTED NOT POSSIBLE
DF122 - INJECTION MULTIPLEXED INFORMATION MISSING .
DF002 - AIR TEMPERATURE SENSOR CIRCUIT - CO1
DF353 - MANIFOLD PRESSURE SENSOR CIRCUIT - CO1
DF008 - PEDAL POTENTIOMETER CIRCUIT TRACK 1 - CO1
DF009 - PEDAL POTENTIOMETER CIRCUIT TRACK 2 - CO1
DF413 - MOTORISED THROTTLE - 1DEF

The car refused to Rev and i have changed the throttle regulator attached to the manifold and i have also checked all the sensor cables in the engine and everything seems ok i have even replaced all the ignition coils and also changed the plugs , i have checked the fuel pump and everything seems to look good . take and return works well and it has good pressure , i have checked all the fuses both in and out everything looks good , i am just confused on what next to do because the car even refused to go into drive because the throttle doesnt rev at all ... i need help from someone who understand what i should do with this code because they are all showing RED .

I will appreciate any response.
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01-03-2013, 04:11 PM
Post: #2
RE: HELP NEEDED ON RENAULT LAGUNA
erase fault code and read again send the codes and engine type
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01-03-2013, 10:45 PM
Post: #3
RE: HELP NEEDED ON RENAULT LAGUNA
i erased the error and it still shows the same error , the engine type is a 3.0L V6 24v initiale paris. FRJ
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01-12-2013, 04:13 PM (This post was last modified: 01-12-2013 04:31 PM by aelmehni.)
Post: #4
RE: HELP NEEDED ON RENAULT LAGUNA
Bonjour,
Priorités de traitement en cas de cumul de défauts : en cas de cumul des
défauts DF121 et DF001, DF098, DF003, traiter en priorité les défaut DF001
température d'eau, DF002 température d'air, DF098 température de carburant,
DF003 pression atmosphérique. Un défaut sur ces capteurs peut en effet conduire
à un faux diagnostic de l'accéléromètre DF121.
English
Priorities when dealing with a number of faults:
In the event of a combination of faults DF121 and DF001, DF098, DF003 deal with
faults DF001 Coolant temperature, DF002 Air temperature, DF098 Fuel
temperature, DF003 Atmospheric pressure first. A fault on these sensors could lead
to incorrect fault finding of the accelerometer.

Defaut DF122 : TENSION ALIM. POTENTIOMETRE PEDALE PISTE 2
Particularités : Lors de l'apparition de ce défaut le régime de ralenti est bloqué à
1000 tr/min, les performances du moteur sont réduites à 75 % et allumage du voyant
gravité 1 accompagné du message "injection défaillante".
- Vérifier l'état du connecteur 6 voies du potentiomètre pédale.
- Mesurer la résistance aux bornes du potentiomètre pédale :
Voie 6 (masse) Voie 2 (+ 5 V)
Remplacer le potentiomètre pédale si la résistance n'est pas de 2,85 kΩ ± 2,05 kΩ.
English
PEDAL POTENTIOMETER GANG 2 SUPPLY VOLTAGE
Special Notes: If DF122, the idling speed is stuck at 1000 rpm, engine performance
is reduced to 75 % and the level 1 warning light comes on accompanied by
message Injection Faulty.
- Check the connection and condition of the 6-track connector for the pedal potentiometer.
Repair if necessary.
- Check the connection and condition of the computer's 32-track black connector A.
Repair if necessary.
- Measure the resistance between tracks 2 and 6 of the pedal potentiometer.
- Replace the pedal potentiometer if the resistance is not 2.85 kΩ ± 2.05 kΩ

DF002 :AIR TEMPERATURE SENSOR CIRCUIT
Check the connection and condition of the 4-track connector for the air temperature sensor.
Repair if necessary.
Check the connection and condition of the computer's 48-track brown connector B.
Repair if necessary.
Check for + 5 V after ignition feed between track 3 and track 1 earth on the air temperature sensor connector.
Repair if necessary.
Measure the resistance of the air temperature sensor between tracks 2 and 3.
Replace the air temperature sensor if the resistance is not between:
7419 Ω ± 365 Ω at - 5 °C
5887 Ω ± 282 Ω at 0 °C
4707 Ω ± 220 Ω at 5 °C
3791 Ω ± 173 Ω at 10 °C
3075 Ω ± 137 Ω at 15 °C
2510 Ω ± 113 Ω at 20°C
2063 Ω ± 87 Ω at 25°C
1716 Ω ± 71 Ω at 30 °C
Check the continuity, insulation and the absence of interference resistance on the following connections:
Sensor connector track 2 Track J2 computer connector B
Sensor connector track 3 Track C1 computer connector B
Sensor connector track 4 Track C2 computer connector B
Sensor connector track 1 Track C3 computer connector B
Repair if necessary.
If the fault is still present, replace the air temperature sensor.
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 Thanks given by: urcarpc
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