Megane 225 no start issue

[James5]

Evening all, for some reason I bought another meg 225 I really don't know why was more of an impulse buy.
Anyway the car was a none runner when I got apparently the fobs didn't work or start the car and it wouldn't crank. So I fitted a new battery to the car when. I got it and hey the fob unlocked and locked the car and the car cranked (did not start). Also noted that I had keyless entry which was unexpected.
Anyway so I done compression test all 4 perfect, checked fluids and again all good. I then removed the sparkies and replaced with new OEM ones, I also replaced the coil packs with brand new, car still didn't start so I thought let's check fuel to rail and yep loads of fuel. I bought a brand new OEM tdc, and brand new OEM injectors and guess what I still have the same issue.
The car cranks over coughs then dies anyone have any idea's? I am thinking it's spark related as the spark plugs are wet, I have removed coil pack 1 with spark plug and it arcs fine dueing cranking I'll try the other 3 tomorrow.
Do we have a wiring diagram for a 55plate 225?

 

[James5]

Did you get clip up and running ??

No not had a chance yet

 

[Brigsy]

You need to get that hooked up mate to scan the ecu as it has a fair few faults by the looks of it. Its all guesswork without.

Clip will work ok on a windows 7 laptop. I had it running on 8 but the drivers are too old

 

[James5]

You need to get that hooked up mate to scan the ecu as it has a fair few faults by the looks of it. Its all guesswork without.

Clip will work ok on a windows 7 laptop. I had it running on 8 but the drivers are too old

Yeah I have had to install it all on the old pentium 4 lappy with win xp on seems to work on that. Did try my windows 10 lappy all was good but drivers are only 32bit as mine is 64bit wouldn't work.

I may fly down to yard later and plug it in.

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[James5]

Managed to go down yard to plug clip in I have done loads of work on sorting issues and only have minor ones by looks of it now. Nothing that would cause it to not run.



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[James5]

I could probably deactivate the seat one via clip

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[Brigsy]

Did you check fuel pressure/flow ??

 

[James5]

Yeah fuel pressure is fine stole the tester from the garage next to where i store the car. (Should be fine fitted brand new fuel pump unit from renault) not cheap so far for what I have spent on trying to sort I could have had a much better spec one. The fault is definitely electrical. Could a brand new OEM tdc sensor be faulty? Wish I knew someone local whom had a 225 i could try it out on

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[tutuur]

Told him to use a proper code eeader as he is using his phone now...

Mk3 head swap straight over, CR will drop as it has more volume. The mk3 doesn't just have different ringland, the pistons are completely different, not 100% sure but they look alot like Mahle's!

 

[James5]

Well thats core out









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[Andyquadra]

looking at the exhaust wheel, I'd be checking the exhaust housing as well

 

[James5]

I got a video inside the rear housing looks ok

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[Andyquadra]

something's gone through and battered the blades

 

[James5]

Compressor wheel is perfect, compression test still good no missing bits from spark plugs either. Do wonder what it was

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[James5]

New chra has arrived, just awaiting a few other parts to arrive now.



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[tutuur]

Chinese or geniune?

 

[James5]

It's genuine one to risky to get Chinese one although was tempting

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[andybond]

td04-14t arent a lot on these anyway

 

[James5]

Well new turbo is now fitted to the car, replaced a few suspicious vacum pipes. Oh and the car is still not starting would appear I am getting no spark or fuel now, plugged in a handheld code reader no codes but it has live data reading and would appear no rpm signal it's a new renault TDC, the wires buzz back to the ecu socket perfect .

Have had enough of the car want to torch it now

 

[Mart]

Have you buzzed out the wiring (or at least supply(s) & ground(s)) to the ecu?

 

[James5]

Have you buzzed out the wiring (or at least supply(s) & ground(s)) to the ecu?

Hi @Mart, yeah I have done some of the ones I can get to. Going to have another look tomorrow. Tempted to pull engine loom out to go through it.

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