Misfire and generally running pants

[leeds_182]

Having a few running issues with the clio.

It has developed an intermittent misfire which seems to be getting worse. It started with the engine light coming on and flashing but then going off and now the engine light is staying on as a solid light. The car also has a rough idle.

I've swapped the coil pack as had one lying around but that's not made any difference.

The plugs have recently been changed but the previous owner went Bosch so I've ordered some NGK ones from g172 anyway. I'm thinking of swapping the leads as well while I'm at it.

I've searched and there are several threads but just wondered if anyone has had similar symptoms and what the fix was.

 

[ADS_V6]

pre cat lambda usually stuck on light is the lambda sensor

 

[Simon_16v]

Can try my OBD reader tomorrow if you want and see if it picks anything up?

 

[Oggy997]

Had flashing eml last week (every night when cold/damp) - new plugs have resolved it

 

[markoc]

I had same symptoms and it was a faulty injector. Actually 2 of them were faulty. Easy to check - if u take off the fuel rail guard and unplug the electrical injector connectors. Use a multimeter to check the resistance of the injectors. A healthy injector is approx 14.5 ohms. Both my faulty injectors were 6 ohms.

 

[leeds_182]

Thanks for the replies.

I've had it on the fault code reader and it looks like an injector fault.

 

[Matthew]

Mine used to do this and it was the pre-cat lambda.

Seems you have already identified the issue though! Ha

 

[leeds_182]

If these fixes don't work it'll be the lambda next!

 

[dann2707]

I can clean the injectors for you

 

[Diagro]

Thanks for the replies.

I've had it on the fault code reader and it looks like an injector fault.

Take Fuel rail guard off, Get a long flat head screwdriver and stick the end on the metal of an injector. When car is running ofc.
Put ear to handle of said screwdriver and listen. Do the same for each one to see if they all sound the same.

You will get a ticking sound.