Engine Management Light

[adamwri]

I've recently bought a '05 Clio 182 and it's a little lumpy. I expected the idle to be a bit rough, as the cars are known for it, but today I've had the engine management light flash at me a couple of times and the car appears to be struggling for power.

I'm thinking that the lambda sensor might be at fault here? With changing this, would it be worth changing both sensors in the exhaust?

[Dave Brand]

Before throwing random parts at it get a diagnostic check done - if the engine management light's coming on it should be storing fault codes.

[daimatt]

You can get Wifi or bluetooth OBD2 dongles from eBay. I have one and have diagnosed and cleared faults on multiple cars through an app on my phone. Dongle was about £5 when I got mine

[docter fox]

I have a cheap bluetooth dongle and use the Piston app on my phone, it's been helpful but I still have a very similar problem to yours! You can see what I've tried here... http://www.pistonheads.com/gassing/topic.asp?h=0&a...

[adamwri]

Same issues, albeit I've not tried any resolution yet. I'm getting mine into the garage tomorrow so I'll let you know the outcome.

[Alex_6n2]

As above

These issues with the F4R Engine, in my experience, always end up being due to the injectors

"Torque Pro" app is good for fault code reading with a Bluetooth OBDII reader. That will tell you which cylinder its on

The cylinders are numbered 1234 from the flywheel end of the engine

You want one of these:

http://www.eurocarparts.com/ecp/c/Renault_Clio_2.0...

2x 10mm bolts to remove the fuel rail guard, then two more to release the fuel rail. Disconnect the fuel line (ignition off!) and don't stand over the top of it - petrol in the eye hurts!

Make sure you pull the fuel rail out square so you don't pinch the O-Rings and use some grease/oil to lubricate them before re-inserting back into the cylinder head.

Once the fuel rail is off the injectors themselves are easy to swap.

Edited by Alex_6n2 on Tuesday 28th February 21:41

[adamwri]

Thanks Alex, that's what I'm not expecting considering that I ran the built-in diagnostics and it's flagging the injectors as being at fault. Obviously this isn't telling me which.

Due to the car being a recent purchase, I'm putting it into a garage to get them give it a once over. Annoyingly it looks a relatively simply fix now I've done my research into it though!

[Alex_6n2]

You can check without using the fault codes

Just unplug each injector one at a time. When you turn off the broken one you're engine won't change it's idle, or will do so less than when you remove the working ones

[adamwri]

Annoyingly, it's been into the garage and they've diagnosed it as piss-poor spark plugs being put in. Why is this annoying? The correct plugs are due for delivery today and to be fitted this weekend!

They seemed to give it a good look over, though, so hopefully no more grief.