Clio 182 pinging/pinking: remap in Surrey?

[2.4te]

Hello all,

My 182 pings/pinks badly at times, even in a low gear at high revs. I've replaced the knock sensor with a new, genuine Renault part and now increase the octane rating (allegedly) with a Millers Oils product. I've had teh car 2 years.

My thoughts are that it's always done this, but I didn't pick up on it for a while. The car is garaged and just gets used for autosolos (and soon sprints). I've tried the solutions I can deal with and now feel that perhaps it's previously been remapped (badly) and needs a session on a rolling road with someone who knows what they're doing.

All thoughts welcome, including who I could go to with a rolling road; I'm in Guildford, Surrey.

Many thanks.

 

[MonkeyKnifeFight]

Quick question how do you know its leaning out in low gears?

What are the symptoms, does the car idle rough or misfire at high revs?

 

[2.4te]

I can hear in pinging at high revs. I don't belt it when it's cold but don't notice it pinging so I had wondered if it could be mixture. It revs fine when warm, no missing, though I do wonder if it's hesitant on pick up. Can pinging be mixture related?

 

[Rbdezlee]

If its been mapped on 99 ron fuel, and you use 95 ron, this would cause pinking, if you change back to 99 it should be fine after a tank or two of fuel.

 

[McGherkin]

I’d imagine if he’s using additives he would already be using the highest RON fuel possible.

 

[Rbdezlee]

I’d imagine if he’s using additives he would already be using the highest RON fuel possible.

Additives go off after a while lowering the octane, he only uses the car occasionally.

 

[McGherkin]

This is what I would suggest, and the same is true for the fuel itself.

 

[2.4te]

I'm afraid o don't think that's the issue. Fresh 99RON fuel and new additive. I think I need to get it on a rolling road with some one who can remap it. Any one know such an expert in the Surrey area?

 

[Brigsy]

Is it detting or engine noisy/knocking ? Id expect it to have went bang a while ago if its been detting for a long time.

 

[R3k1355]

Do you know it's been remapped? Is the cold idle still rubbish?

Have the injectors been replaced?? There's loads of cheap rubbish on eBay that could cause you issues.