Prontissimo said:

Yep ...will do. I don't think it is the plugs because sometimes it starts willingly from cold and the plug icon doesn't stay on . I suspect it's contact fatigue in a sensor or the relay , or contacts to the relay, itself. I don't expect remap to fix faults. If I remember rightly resistance for a working heater plug is 1-2 ohms ? First job to day to measure them.

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Sweetsixteen said:

Yep - just the back box changed. No dpf on mine, so I now have straight-through from Cat. Here's a pic of the box i used, except mine is a single pipe by choice (don't like being too obvious).

View attachment 158569

They are made by Polyzhaust, out of a polymer with perforated stainless pipe running through. No baffles, and you can see daylight right through them. Nice burble without being too loud.

Here's the car

View attachment 158571

More or less bog standard externally except for 14" Punto wheels and 500 trims, smoothed and painted black in the centres. Like the low-key look.

And here's the tuning module:

View attachment 158570

They're unusual because they're made in small numbers by a guy I know called RoverRon. He started off tuning Rover V8's and will now make a box for almost any car. I've tried several other boxes and this one is way ahead. I had blanked off my egr at first, but then decided to try the delete mod instead. Lot of work but I enjoy messing.

Nothing outlandish on the car, and certainly nothing for show - but the results are great.

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Prontissimo said:

Turbo exhaust manifold design......http://www.enginebasics.com/Advanced Engine Tuning/turbo manifold design.html

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Prontissimo said:

It's not just the economy....the whole package is knockout. Really well built, incredible road holding , plenty of headroom, upright seating position, great gear change......and that fabulous little motor ( with no DPF on earlier cars )! I've only had it 8 weeks but I suspect the glitches mentioned have been longstanding (along with a seized wastegate and clogged cat which are both now fixed). I suspect it's been in for heater plug changes , maybe even a new MAF but they've been unable to accurately diagnose what might be wrong. The problem with these highly tuned modern diesels is getting to the bottom of what might be wrong. Even trained up so called specialists can't often figure it out exactly from the fault codes I think. Maybe the fault codes don't give enough info. On the plus side when these motors are driven by grannies and the wastegate seizes and cat then clogs up.....the engines CANT get stressed so a misbehaving one can be a great buy for someone who has some insight . One crucial aspect of these cars is the tiny engine oil capacity and the huge 12k miles oil change recommendation for a revvy engine capable of big power output and torque . Mine only holds 2.5 litres which is a tiny amount and the filter is pretty small . And Fiat recommend only a B3 grade of oil which I think is not a grade for extended change intervals whereas B4 oils are......and B4 oils (and higher) will create less particulates and soot too. So a lesser grade of oil and overlong service intervals can compromise the longevity of the motors. So I reckon 5-6k oil changes are sensible . Another problem is the incorrectly assembled air cleaners which can allow water past the gaskets. I've fixed mine and it works fine now and safely but the alternative fix is as per Sweetsixteens cone filter. But fabulous "wolf in sheeps clothing"! Wonderful. I wonder what power they could produce when REALLY breathed on by a diesel tuning boffin.....with new cams , exhaust manifold etc. I reckon it could be nudging up to close to 190bhp. I wonder if anyone has really gone to town on these motors? Any ideas?

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ytareh said:

Panda MJ Clutch can't cope with PUNTOS 75bhp and sometimes not even the 70 it's got.So upgraded clutch is starting point .

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ronecc said:

I am reading all your comments and wondering whether I am driving the same model Panda. 2010 1.3 Multijet. I agree the power is fun, the economy is great, but great gearchange and handling? In the lower gears the engine appears to snatch back and forth giving a very unstable feeling. Slowing down in the lower gears makes the car feel like a rocking horse. As for handling, the car rolls so much going round corners that it almost scrapes the paint off the door handles. It has only covered 12k miles and has had the bottom engine mount changed. Any ideas how I can get it to feel like yours??

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