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Renault ECU services & parts Home  >  Renault ECU services & parts
At EFI Parts we have a lot of experience with performance Renaults of all kinds. Some of our services are listed here.
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Clio 197 / 200 Custom ECU re-map
Clio 197 / 200 Custom ECU re-map

Price: £289.00
Stock: In stock

Nearly all items are dispatched immediately but certain expensive & infrequently requested items may have a lead time. If an items delivery is to be delayed for any reason it will say so in the product description below.
Be it a relatively standard 197 or 200, or a cammed, high compression racer with custom manifolds, we can help with your ECU tune.

The factory original ECU is well suited to running mildly modified original engines; Modifications including filter and exhaust upgrades, inlet or exhaust manifold upgrades, mild performance camshafts, compression ratio lifts and any combination of the above. If you've performed any of these modifications and are looking for a dyno proven, custom, safe and optimal remap by somebody who knows these engines inside and out then you have come to the right place.

In the case of the 197/200 the factory engine can sometimes suffer with reduced road manners and 'flat spots' (RPM specific dips in performance) when modified. Accurate calibration (mapping) with these engines is much more critical of modification compared with the 172/182. With the more modern ECU there are many more functions at play within, each of which must be satisfied for the engine to respond properly at all RPM's and throttle angles.

Unlike the 172/182 even a standard car can benefit from a re-map. The factory ECU is bound to tight emissions regulation which mean that even from cold the engine must conform to strict fuel consumption at the expense of drivability. Richening the mixture just a few % and calming the cars lambda control from cold vastly improves these engines warm-up behaviour. Like the 172/182 though, performance gains are minimal with a stock engine (even if others are claiming 10hp+ - they are grossly misleading you)

Q: How is this re-map performed ?
You'll need to book a slot with us so we can get your car on to our dyno here. Along with weekday slots we'll often have weekend slots available too.

Q: Will your remaps work with a decat exhaust ?
Yes, upon request we will disable all catalytic functions in your ECU and remove the possibility of a check-engine-light.

Q: What stage are your N/A re-maps ?
This is not how we work. Everything here is custom tuned, on the dyno, in front of your eyes with explanations made along the way should you be curious. A re-map of a standard engine yields only marginal performance gains and anything other than standard should be considered custom since no two modified engines are the same. As a result it is near-impossible to categorize different levels of tune, unlike a turbocharged engine.

Q: Is it worth me having a custom re-map of my standard (or close-to-standard) engine ?
If all you're looking for is additional performance then it probably isn't. If you're engine is stock or mildly modified but you're looking for improved warm-up (cold running) behavior and keen to know your engine is performing optimally then it may be worth the expense. Perhaps you've installed a de-cat exhaust and want to rid yourself of the check-engine light and iron out any flat spots you might have created. In these cases it can help.

Q: What parameters are you able to adjust ?
Just about everything. When re-mapping your ECU to accommodate wilder cams, intake modifications and the like we'll regularly need to alter the ECU's idle control parameters, throttle behaviour, transient fueling, RPM limits, lambda control, warm-up behaviour, VVT operation and of course fuel and spark timing.

Q: How long does it take ?
On average it'll take 3 hrs on the rolling road.

Q: What are the common modifications you'll tune for ?
Usually camshaft swaps, exhaust/header swaps, often coupled with other upgrades like matched ports, de-cat and improved induction.

Please drop us an email if you have any other questions.

N.B: The before-after dyno plots shown here were made with a standard 50k mile Clio 197 RS which had nothing more than a de-cat pipe installed and a remap.

Note: The term "live" mapped these days has become interchangeable with "custom dyno tuned". The Renault ECU is not in fact mapped live, rather data is collected, the ECU adjusted and the engine run again. This sequence repeats until we are happy the engine is calibrated.

For wilder engine upgrades (including turbos, superchargers, etc.) please get in touch so we can discuss other options. It may be that we can still adjust the stock ECU to suit or it may be that a fully programmable standalone ECU is the best way to go. This is usually the case for higher powered forced induction engines.

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