What have you done to your car today?

I had to do this at the weekend - was putting it off as the key had been absolutely buried in superglue by the previous owner. But the battery was dire and I've not managed to program the right replacement fob yet.

Similar story that the blade was a glued/integrated one Vs the spare fob, luckily I had the blade cut for the new fob already. So just switched the electronics after some chisel and knife antics.
Not trying to be patronising but you do know the transponder chip and the electronics with the battery are separate parts?
 
Not trying to be patronising but you do know the transponder chip and the electronics with the battery are separate parts?
Yup :) I didn't mention transponder as that has programmed OK. Just the central locking unit that I must have the wrong type. I ordered from AliExpress aiming to get the right blade, transponder and remote. I got 2 out of 3 right, the search continues!

Edit: Main reason for assembling an entire new key unit was a) The car has no spare and b) previous owner had glued the entire thing together and the battery was already low when I received it. A whole fresh key seemed a good idea.
 
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Bought new number plates from Halfords, didn't realise they only seem to do metal ones now.
Too cold outside to put them on. :p
 
Treated her to new wheels (to me) am so happy with them, the oem ones are to enclosed and no my cup of tea.

Also upgraded the 9 speakers but not sub (yet). The stock Ford ones really were cheap. Didn't spend a fortune on the upgrades but the sound is night and day better.

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Got my 1st MOT done on the Megane RS no issues just the usual your brakes & tyres are wearing out give us £1400 to fix that for you sir :p they wanted almost £800 for brake pads (minus labour to fit!) ...I got them trade for sub £300 LOL & can DIY fit!
 
Ah! That's not gone well...

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Fortunately back home now after getting the spanners out!

Some kind of fuelling issue.
 
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Own up, you fan out of fuel but wanted to style it out :D

Reverse hinged bonnets ftw

I wish! :p

I think a fuel injector stuck open, but it's hard to say. Nothing I tried made any difference until I rapped on all the injectors with the end of a socket extension, then it fired back up with a cloud of fuel smoke out of the exhaust and ran fine.

I've been meaning to replace the injectors for a long time. It was stumbling a few months ago and I ran some injector cleaner through which sorted it, but ever since then I've had a noisy injector.

Other possibilities are FPR, AFM, CPS, or the injector loom plug, but the FPR seems fine (I confirmed it doesn't have a bad diaphragm, couldn't do much else at the side of the road), AFM I lubricated the hinge on the flap just in case but the carbon track inside might be worn, I'll investigate if I need to... The CPS is a recent replacement (genuine Hella), not that that automatically absolves it. Injector loom plug is a common issue, it can trap water and/or be corroded, but mine seems to be in excellent condition. (It is possible that unplugging it and plugging it back in could have scratched through a tiny bit of corrosion or something though)

Fuel pump, fuel filter, and all ignition parts apart from the coil are new.

It was stuttering and cutting out like very bad fuel starvation or like some critical power or signal was cutting in and out, and I managed to limp it at 40-ish to a safe place at the side of the road.

It did that once before quite some time ago and I thought it was ignition related so I went through the ignition system, and it (likely coincidentally) went away for a while.

Additional things making me point a finger at the injectors are the fact that on a cold start the car has a bad jerkiness in deceleration until it has warmed up a little, it will occasionally fail to start and take a lot of cranking before sputtering to life (it has always done that, maybe 1 in every 20 starts) which might be caused by a leaky injector flooding it perhaps? And the oil has always smelled strongly of fuel when I service it.
 
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