Hi
I have a Suzuki based vehicle that uses a Renault 1.9 non turbo
diesel.
It starts OK and more often than not runs OK too.
However, sometimes, whilst running, the glowplug light comes on and the
engine starts to misfire badly. Sometimes the light goes out and if
that happens the engine picks up and seems to run properly again.
Sometimes the fault re occurs with the same consequences.
The dealer has changed the throttle pot and initially this seemed to
have cured the problem. Unfortunately it happened again today so I am
back to square one.
Please can anyone suggest a cure and can anyone send me a copy of the
circuit diagram. I suspect the glowplug timer is simply activating when
it should not.
Help please.
Martin Cross

"martin" <martin8462003 (AT) btinternet (DOT) com> wrote

Hi,
Thanks for your reply.
I cannot see that there is an EGR valve. There is nothing on the
exhaust. This is a non turbo engine and a breather runs from the
crankcase into the inlet air manifold.
The light is definitely connected to the misfire as with the light on
it misfires immediately but if the light goes out it clears up
immediately.
I still suspect something is causing the glowplug timer to activate.
Thanks again,
Martin
Dieseldes wrote:

"martin" <martin8462003 (AT) btinternet (DOT) com> wrote

as all the recent renault engines are, including those supplied to other
manufacturers IIRC, The Glowplug light acts as a fault indicator, if it
comes on when the engine is running it's because the engine ecu is
registering a fault, which is why I mentioned the EGR as it is very common
failure , and gives exactly the symptoms you describe.
If the glowplugs were coming on when the engine is running you wouldn't
notice, apart from having to replace them more often! remember they carry
on glowing for a short while after the engine has started. They certainly
wouldn't cause the engine to misfire.

Mind you it would help of you mentioned the type and year of vehicle, saves
so much guess work!


Des

Hi Des
Thanks so much for your advise. The vehicle is a Dutton based on a
Suzuki SJ419 about 3 years old.
Kind regards,
Martin
Des wrote: