Random Misfiring

[CM200]

hey all back again!

Clio started randomly misfiring today or well what seems like it.

Happens in 2nd, 3rd and 4th gear below 2700 once I climb it clears up.
It comes and goes randomly, I’m not getting any lights, messages etc doesn’t idle rough.
Also I can only get to happen when driving. Cannot seem to reproduce the effect during idle.

Spark plugs have been changed I did notice one had almost a well of water in it so I replaced the rubber ring around the actual coil and am waiting to see if it’s got more in it.

Car feels like it’s going into limp mode after it happens - e.g I can pin it in second it will judder/misfire until I climb then clear but she doesn’t feel as nippy as normal (could be placebo).


The research ive done most people got the ESP light I’m not getting any of it, checked MAF sensor (as per guide thank you guys) and i can turn it easily however the orings look fine...I may do the sealant trick to see if it helps.

Any chance it could be TB going or perhaps a sensor?
My flexis look okay but I have no method of testing until next weekend. (Fingers crosses it isn’t).

 

[Jack Maxwell]

Take a look at the thread i've posted just two below you. Same sort of issue but misfiring at higher revs, get an OBD2 reader and check the upstream Lambda

 

[CM200]

Take a look at the thread i've posted just two below you. Same sort of issue but misfiring at higher revs, get an OBD2 reader and check the upstream Lambda

Cheers bud any where recommended to buy one from or is fleabay okay?

 

[Jack Maxwell]

Cheers bud any where recommended to buy one from or is fleabay okay?

I think I got mine from amazon for under £20. Get a bluetooth or wifi one that connects to your phone then you can use an app, I used car scanner

 

[CM200]

I think I got mine from amazon for under £20. Get a bluetooth or wifi one that connects to your phone then you can use an app, I used car scanner

By any chance do you remember the make of the one you brought mate? Amazons full of them and I’d rather buy one knowing it’ll be half decent ^^

 

[Jack Maxwell]

There’s a sticky thread explaining the part numbers for the lambda. I got mine off eBay, it was a bosche one.

There is a difference for the connectors depending on the age of your car.

 

[CM200]

View attachment 129998 There’s a sticky thread explaining the part numbers for the lambda. I got mine off eBay, it was a bosche one.

There is a difference for the connectors depending on the age of your car.

Cheers bud bought the OBD2 anyways, turned out an ignition coil had gone with a second on its way out, was stripping the engine down and noticed the spring in the coil was corroded to the high heavens, the contact on one had half missing no idea how.

Bought a new set and she’s running sweet as now, gonna try and plug the OBD2 in tomorrow with the app and make sure everything else is okay whilst the weather isn’t to cold!