[susanjk]

Every time I accelerate from third to 4th and the revs are around 3500rpm, the diesel heater light comes on. I've been told this might be something as simple as a loose wire somewhere under a seat. Anybody got any ideas?

[Hometune]

The light is the engine management warning light. It means a fault has been detected by the computer in the car. It sounds more like an exhaust gas recirculation (EGR) valve fault or fuel pressure problem.
A diagnostic check will find the problem for you in a couple of minutes. You dont have to go to Renault, many good local garages will have a scanner that can read this fault.

[steve533087]

warnig lights on dashboard

Please help! I am going out of my mind!

My clio 51 Dci has been in and out of the garage since good friday. The problems I had has been resolved, I had conatminated diesel. My injectors became blocked and a new filter fitted. However, since Day1 I have been having problems with my car. On the SAME HILLS on my way to work, when accelerating my EM light and Glow Plug lights and STOP lights flash.....I have to release my accelorator or change gear to extinguish these lights. My car seems to do this more when I have a car full of people or when I am acceloration on the motorway.

Car has been on computer and its shows 3 faults:

1 - Rail pressure not reached
2 - Low pressure
3 - Rail pressure max reached

Any ideas. The garage has looked at it but now i feel that they dont know what they are doing!

Do you think that this could be the fuel pump? its as if the engine isnt getting enough juice?

Thanks so much

[Hometune]

This could be a number of things especially as you have had contaminated fuel.
The fuel pressure regulator (or solenoid) is on the pump. Might be worth removing it and making sure it is not covered with any metal particles. It controls the fuel pump output pressure.
The fuel pressure sensor is on the fuel rail and tells the regulator to shut if the pressure is too high. maybe faulty?
The contaminated fuel may well have partially blocked an injector. They would need removing and sending away for cleaning. A blocked injector can show these symptoms.
I'd definitely recommend you take the car to a diesel specialist for the quickest and possibly cheapest repair.

[steve533087]

Many thanks for your reply. I have had all of my injectors cleaned and checked a second time by the garage who are as puzzled as me.

The problem started before my contaminated fuel but by no means as big as it is now. It does seem the more heavier my car is, or the steaper the hill, the more problems I am having with the lights appearing, and recently my car seems to have lost its 'umphh'. Its like driving a 1.1.

Does this help further? Thanks so much

[Hometune]

So, if your garage are puzzled, they are not going to fix it. Are they? :rolleyes:
Thats why I suggested a diesel specialist ;)
Incidentally, how did your garage 'clean' the injectors? Did they strip them down and clean them in special equipment? Perhaps they cleaned them sonically? Or did they take them out, 'clean' the tip and refit? Because if they did, they won't have sorted any problems. Injectors of the common rail type are nothing like the good old days as they are electric.
Oh dear...

[steve533087]

Hey

They removed them and took them to a deisel specialist who fixed them on 'a bench' realigned them and then they re-fitted them. I had to pay extra for this privalige. So, im pretty sure that the injectors are sorted...hense why I am lost and wound up to hell with it at the moment. I think I will be asking for a refund of my £500 and taking it somewhere else as you suggested!

[angel_x]

Renault clio expression 1.2 electical warning light

Post deleted, was accidentally posted in wrong forum. Thanks anyway

[Hometune]

Your car has nothing in common with the 1.5DCi in this thread. :rolleyes:
Your problem has been answered many times in this forum. Use the search tab at the top of the page ;) The 1.2 is notorious for this fault and usually turns out to be either: wiring loom, black box on top of throttle body cutting through the wiring, or the MAP sensor. In most cases the wiring loom is the problem.
It is NOT true that the memory is 'wiped' after you switch off and on again. Proper diagnostic scanners will find every fault in the computer's memory and lists them as 'memory' or 'active' in Renaults.

[angel_x]

You didn't need to reply to that post

I actually tried to delete the comment as I had already noticed I had clicked the wrong link but the website was having problems and I had work to go to. I have now posted it on the correct forum thank you very much. And by the way, it was a member of the RAC who told me that diagnostics would not pick up the fault, so perhaps they're wrong.

[Hometune]

Originally Posted by angel_x

And by the way, it was a member of the RAC who told me that diagnostics would not pick up the fault, so perhaps they're wrong.

Yes. They are. :p

[Saidul]

Hi there, i have just baught a 1.5dci, and i was driving along and suddenly every light in my dash starting flashing when i was doing >40mph. i realised my handbrake was partly on, but is there anything else that could cause this problem? Pleas help

[Hometune]

Have your battery checked, the alternator output and if ok get an auto electrician to check the dash as it may have failed.

[Saidul]

thanks for the reply. Ive now had my clio for 2 weeks. looking more closely at the problem, i have found that my engine management light and the electrical fault light (in the middle of the dash) both come on when i push the accelerator more than a few centimeters. ive had my glow plugs changed and a new fuel rail regulator fitted, yet no success. anyone got any ideas, as the car seems to be running perfectly fine but these warning lights are really alarming. i hav had a few diagnostic checks already but it seems that i may need to go to a specialist!:eek:

[Hometune]

On the accelerator pedal you will find a black box with a plug to it. Disconnect the plug and spray some WD40 into the connector. Make sure the pedal is okay and secure then reconnect and try. And it costs nothing to do ;)

[Frankie]

Originally Posted by susanjk

Every time I accelerate from third to 4th and the revs are around 3500rpm, the diesel heater light comes on. I've been told this might be something as simple as a loose wire somewhere under a seat. Anybody got any ideas?

I have noticed exactly same problem on a 1.5 dci that i picked up today. The car has a 6 month warranty from the garage, this does not seem to be an easy fix problem. Do we have any idea's as where i should direct the garage to start as i wanto sort this out before warranty runs out.:rolleyes:

[Hometune]

A scanner will tell you as the light has been on indicating a fault in the engine management system. Easier than trying to guess! A fault code should point you towards the faulty component.

[greenbay]

Originally Posted by Hometune

A scanner will tell you as the light has been on indicating a fault in the engine management system. Easier than trying to guess! A fault code should point you towards the faulty component.

My 1.5dci expression has this same problem too. Harsh acceleration brings it on more often, around the 3500 revs mark. I've found that taking it out of gear and causing the revs to drop will make the light go off and power to return - however it soon comes back on again, which is a pain when going long journeys on motorways.

I've had an engine scan and the fault code it picked up was with the MAP sensor. They apparently tested this and found that it was operating 'within normal values', so suggested it could be a wiring problem. I'm fairly convinced it's just a dodgy sensor though, as the same problem happens under the same conditions without fail.

Is there any way that i can clean the sensor/fix it? If not then can anyone suggest where i could get another one from and how much they are?

Cheers

(Oh incidentally a fault code was also recorded for the air conditioning system, which the car doesn't have - so i'm not too sure how much trust to put in these fault code tests!)

[MrDanno]

Originally Posted by greenbay

My 1.5dci expression has this same problem too. Harsh acceleration brings it on more often, around the 3500 revs mark. I've found that taking it out of gear and causing the revs to drop will make the light go off and power to return - however it soon comes back on again, which is a pain when going long journeys on motorways.

I've had an engine scan and the fault code it picked up was with the MAP sensor. They apparently tested this and found that it was operating 'within normal values', so suggested it could be a wiring problem. I'm fairly convinced it's just a dodgy sensor though, as the same problem happens under the same conditions without fail.

Is there any way that i can clean the sensor/fix it? If not then can anyone suggest where i could get another one from and how much they are?

These two parts of your post would indicate to me that it could be a problem with the turbo wastegate.

(Oh incidentally a fault code was also recorded for the air conditioning system, which the car doesn't have - so i'm not too sure how much trust to put in these fault code tests!)

It's better to have one eye than be totally blind ;)

[greenbay]

Thanks for that! I received the same potential diagnosis on another forum too. Is it possible for me to check if this waste gate is functioning correctly? I'm guessing that it could be stuck shut - i'd prefer to have a look myself than take it to a garage - if it isn't too hard a job!

[Hometune]

Quote "Oh incidentally a fault code was also recorded for the air conditioning system, which the car doesn't have - so i'm not too sure how much trust to put in these fault code tests!" Unquote
Ah yes, but a competent mechanic will be able to decipher the codes. Hopefully anyway!
Attach a vacuum pump to the wastegate where the small pipe runs to the solenoid and apply vacuum. Watch the wastegate rod begin to move. It should start to open with about 6" mercury and be fully open around 15". Ensure there is no more movement possible, use a large screwdriver to push it. When released ensure it goes all the way back, check with the screwdriver again. Remove the turbo pipe and have a look inside. See if there is any play in the turbo shaft. Any play or resistance would indicate a failing turbo. On a good diagnostic tool the 'commanded boost' can be compared with the 'actual boost' and this is a good indicator of the state of the wastegate and turbo.