Re: clio 1.5dci - no acceleration

If it's injector pump (rather than common rail), remove the bolts from the feed and return pipes and swap them over. I done a renault master years ago and the banjo bolts were the same physical size, but had different sized holes in, so would tick over but not rev.

 

Re: clio 1.5dci - no acceleration

thanks Dan but it is common rail - I'm at a complete loss as to why the pedal make no difference at all. - mind you, it is fly by wire?!

 

Re: clio 1.5dci - no acceleration

Ah, ok. When you said the pump and injectors had been tested i presumed it was old school!
If it's fly by wire, then can only really be electrical. Check plugs, wires, fuses, wiggle relays etc etc
Not too clued up on this system, but there must be some sort of stepper motor on the throttle body. That should buzz or click when you first turn ignition on. Make sure butterly in throttle body isn't jammed......... that's all i can think of at the moment!

 

Re: clio 1.5dci - no acceleration

Accelerator pedal sensor has got 6 terminals marked
1-2-3-4 5 6 check at key on you must have a 5v
at terminals 4 & 5 terminals 1 & 2 are ground terminals 3 & 6 are return signal wires to ecu pin no's
1h2 & 1f3 Most probable causes wiring pedal sensor
ecu I would start off by checking terminals 4 & 5for the 5v feed HthRegards Mickeybo

 

Re: clio 1.5dci - no acceleration

Thanks Mickeybo
I'll have a look in the morning and feedback.

 

Re: clio 1.5dci - no acceleration

Hi Mickeybo
I've just checked as you suggested.
terminals 1 & 2 prove to ground.
terminals 4 & 5 read 5v as you stated.
I'd like to check continuity of terminals 3 & 6 but try as I might I can't get the ECU cover off!

I've also tested the pedal and have increased resistance between terminals 1 & 6 when I move the pedal, and likewise with terminals 2 & 3.
I've considered swapping the pedal over with the one on my 2004 clio just to prove the pedal works but now have to sort an oil leak that's developed at the crank pulley end of the crank/sump!
any other suggestions would be greatfully received:d
thanks again

 

Re: clio 1.5dci - no acceleration

finally - some good news.
I've sorted the oil leak. after twice removing and resealing the sump it transpires the oil was leaking from the top end. The reconditioned head had no camshaft oil seal - that'll teach me to assume. Pour oil in - oil pours out!

as for the "dead accelerator" - I started up the engine and managed to get it to tick over after its rebuild. I let it tick over for 10 - 15 mins while the ecu must have been running it's own diagnostics. there were a few splutters and changes in running smoothness - probably while it sorted out the mixed up injectors - when it finally ticked over nicely the accelerator pedal came back into play. I took it for a 20 mile run and it felt good and showed an avereage of 62mpg on the trip computer. no leaks or drips from either of the fluid bases.

I now have a happy daughter who recognises Easter Sunday as the day her car was resurected!

thanks to all those who posted back to help - Keep up the good work - Renault ownership can be soul destroying without the back up of a good forum.:d

 

Re: clio 1.5dci - no acceleration

Well done! Perserverance usually does the trick! :d