**Injector Fault**

[StevePro]

Update

Just had a guy take a look and the cars giving out the I go that it's actually the fuel pressure regulator that needs changing.He said he's seen this a fair bit in these cars.

If it fixes the issue I'll update.

[alanf]

Try disconnecting the plug to the maf, see my other post.

Alan

[StevePro]

**update**

So changed the pressure regulator as the code indicated and she's alive. Still takes 4/5 times to kick to life but it's running!

New and now only code is faulty injector 3, so part on way to be fitted and hopefully get it sorted

[joe12]

Good the hear that you're getting somewhere with it.


Cheers.

[StevePro]

Changed the injector and coded in. Still the bloody same

I'm lost

[joe12]

Sorry to hear that.

If you Google the fault you will see a lot of problems which are similar, there must be an answer somewhere.



Cheers.

[StevePro]

I'm changing the fuel filter.... After a good look around online I found a few posts where people were experiencing the EXACT same issues as me and after receiving advice from genuine Renault "experts" this injector fault problem is "caused by the fuel filter catching air and recirculating it." After the fuel filter change........ Problem disappeared. Hopefully this sorts it for me, I do have quite a bit of air in the fuel line from the filter to the pump.....? Luckily no air visible in the fuel lines around the priming bulb ect, just in the one area which would be the pump throwing it out towards the pump?

Took the old one out today, was rather pleased with myself, and new one here tomorrow or Friday.

I'll chuck it in and say a quick little prayer

[joe12]

Got my fingers crossed for you


Cheers.

[StevePro]

Well that done sod all, though there are now a lot less air bubbles in the line.

Think I'm going to have to just get rid, I'm fed up throwing money and time at it!

[joe12]

Try disconnecting the plug to the maf, see my other post.

Alan

@ Stevepro

Have you tried alan's suggestion above.



Cheers.

[StevePro]

Totally missed it, so nope.

I'll research where that part is and see if it helps

[StevePro]

Try disconnecting the plug to the maf, see my other post.

Alan

@ Stevepro

Have you tried alan's suggestion above.



Cheers.

Unfortunately no joy. Not quite sure what else to try now as it's not giving out codes but just the same "injector fault"?

I might have to bite the bullet and either get rid of pay the excessive money Renault will ask for to diagnose.

[joe12]

I would be looking around for an independent Renault specialist before going the dealer route?



Cheers.

[triumph2.5man]

Steve, forget about carrying out leak-off tests. Before anything else you need to get a diagnosis of your fault code. Without that you are fumbling around in the dark. Your car will never run correctly until the code has been deleted even if by chance you replace the faulty injector. After identification of the code, then you can do leak-off. Your car system could be either Delphi or Siemens. A common code is DF026 (or 27, 28. 29 depending on which injector is causing problems) - the Renault system does not give P codes. It could be as simple as a bad injector wire connector. Believe me I have wasted hours trying to identify faults by using logic and experience. It does not work! That is why scrapyards are now full of mk 2s. They look lovely but just do not go!
Two weeks ago I came across an 07 plate mk2 in my local scrappy (my second home!) It appeared to be intact and had a 106 bhp engine and 6 speed box (I used the reverse switch for our mk 3). There was paperwork in the car and this caught my eye. The poor owner bought it less than a year previously. In February 2018 he paid a bill to Halfords of over £500. With the invoice was a quote for several hundred quid further work. Just a few months later the car was scrapped. Another dissatisfied Megane owner! This is the most modern Meg I have come across so far.....No doubt somebody can beat that.

[StevePro]

Steve, forget about carrying out leak-off tests. Before anything else you need to get a diagnosis of your fault code. Without that you are fumbling around in the dark. Your car will never run correctly until the code has been deleted even if by chance you replace the faulty injector. After identification of the code, then you can do leak-off. Your car system could be either Delphi or Siemens. A common code is DF026 (or 27, 28. 29 depending on which injector is causing problems) - the Renault system does not give P codes. It could be as simple as a bad injector wire connector. Believe me I have wasted hours trying to identify faults by using logic and experience. It does not work! That is why scrapyards are now full of mk 2s. They look lovely but just do not go!
Two weeks ago I came across an 07 plate mk2 in my local scrappy (my second home!) It appeared to be intact and had a 106 bhp engine and 6 speed box (I used the reverse switch for our mk 3). There was paperwork in the car and this caught my eye. The poor owner bought it less than a year previously. In February 2018 he paid a bill to Halfords of over £500. With the invoice was a quote for several hundred quid further work. Just a few months later the car was scrapped. Another dissatisfied Megane owner! This is the most modern Meg I have come across so far.....No doubt somebody can beat that.

Thanks for your response. I did have it hooked up and the codes were fuel pressure regulator and injector 3, so both where replaced and the new injector coded in. However nothing changed, so I changed the fuel filter hoping that would help..... It didn't

I'm registered disabled and money is very limited for me, so throwing money at it isn't ideal.

I noticed injector 2, 3 & 4 have a really high return flow compared to number 1 which, though is constant, is only a dripping flow. Should the return flies be a constant stream?

Thanks