'Check injector' help!!

[Jd1111]

Hi,

Took the leap and signed up great forum!!

I've been getting a check injection warning message accompanied with the flashing check engine symbol.

I have so far replaced the plugs as well as all for the coil pack. The engine still runs pretty sluggish and the Rev count is pretty high.

I have received the following diagnostic messages:
Cylinder 4 misfire detected,

Misfire detected with low fuel,

Injector circuit/ open cylinder 1,

Random/multiple cylinder misfire detected.

I own a 1.4, 55 plate Clio dynamique. Any ideas would be greatly appreciated.

Researched a little and only other idea may be lambda sensor? Check emissions warning did appear briefly but has since gone when coils were replaced, also ran the injectors cleaner through the fuel tank which wasn't much help.

Thanks in advance

 

[Djw John]

The injectors need replaced/ultrasonicly cleaned.

Tbh I'm not sure why you've replaced other things when the code is telling you what's wrong!

 

[dann2707]

I can ultrasonically clean injectors cheap hopefully @Djw John will refer me as I did his when his was being dicky!

Code definitely corresponds to dodgy injector.

 

[Djw John]

Meant to tag you in but got distracted and forgot! Well worth it and fixed mine superbly.

 

[Ianboom]

Check the resistance of the injectors, I had an injector short/open circuit fault and was of mine was faulty!

 

[MarcB]

@dann2707 how much to have 4 injectors cleaned and looked at ?