Nissan Qashqai 2.0DCi DPF Removal Session – SINSPEED

3 Jul 2014 | Author: | Comments Off on Nissan Qashqai 2.0DCi DPF Removal Session – SINSPEED
Nissan Qashqai

Nissan Qashqai

2.0DCi DPF Removal Session

Nissan Qashqai DPF Design Problems

The Nissan Qashqai is a great looking car and with a very strong engine. We#8217;ve found the 2.0DCi model is currently manufactured with the DPF (Diesel Particulate Filter) and our main concern is the size of this filter. The filter is installed in the centre box of the exhaust and this in itself is an issue because the further down the exhaust it is, the lower the temperature of the exhaust gasses are before they reach the DPF for a regeneration.

We believe the filter would have been better suited mounted directly on the downpipe but we can see that space was an obvious issue in the design of this vehicle #8211; but then how have other hatchbacks achieved this.

Loss Of Power / No Throttle Response

Glow Plug / Engine Management Light Illuminated On Dash

Poor Fuel Consumption

Hard To Start Slow Pick-Up In Speed

Limp Mode (Won’t Rev Over 3000RPM)

Fault Code: P1435, P1436 P0611 etc..

Engine Starts Eventually Cuts Out

Engine Fails To Start

Once the DPF has failed to regenerate and blocks up on the Nissan Qashqai, the light will not go out without having it reset and Nissan currently charge £250+ Vat for this service whilst carrying out a forced regeneration, however, after doing so it is strongly advised you must carry out an oil filter change because it will dump fuel in the oil to raise the temperate and this then will cause lack of lubrication and can also lead to over pressurising if you#8217;re not careful.

Regenerating the DPF if it becomes blocked is not such a bad thing, if it#8217;s the first time you#8217;ve experienced problems but if it has been regenerated once already and the light is back on, then you#8217;re only real options are a new filter or a DPF Removal because regenerating it again will only potentially lower the life expectancy of your injectors and at the same time damage the elements of the already blocked filter so it will block up a lot quicker the next time round.

The DPF (Diesel Particulate Filter) does have a life expectancy just like a timing belt and it is advised to have serviced to avoid it getting blocked and causing other relevant issues such as the following list of problems which we#8217;ve seen on some models:

Turbo Damage (Caused by Carbon-Backup)

Engine Damage To Seals (Caused by Carbon-Backup)

Injectors Damaged (Caused by Carbon-Backup)

EGR Blocked Up (Caused by Carbon-Backup)

Sensors In Exhaust Damaged (Caused by Excess Heat Carbon Deposits)

Complete Engine Failure (Caused by Carbon-Backup, Excess Back Pressure Lack Of Lubrication i.e Oil Contamination)

A blocked DPF can quite quickly turn into a very expensive repair if it is not dealt with immediately.

Is There Not A Permanent Solution For A Blocked DPF On A Nissan Qashqai?

There is indeed a permanent solution and that is to have the complete DPF system removed and de-activated from the vehicle. This will ensure the vehicle will not lose power, no warning lights (DPF Related) will come up and the vehicle will not attempt to regenerate but best of all, there will be NO DPF on the vehicle meaning nothing to block up and so you can drive the vehicle how YOU want to drive it and not have to worry about doing it any harm.

When your Nissan Qashqai comes into our workshop we start by deleting down the fault codes and downloading the Engine ECU map files to begin manually decoding and de-activating the complete DPF system. We offer a CUSTOM DPF Removal session and do not use any kind of automated softwares in our process, this eliminates the possibility of problems which many people come across after having their DPF removed by mobile tuners.

Whilst the software is being manipulated, we take your vehicle into our workshop to have the filter physically removed from the exhaust system and at the same time carry out a full visual inspection over the vehicle to see if any other faults are occurring just to ensure you peace of mind that after your vehicle leaves our workshop there are no other problems and if there are, we can notify you and quote you accordingly #8211; Yes, we do carry out general mechanical repairs we#8217;re very cost-effective!

After reprogramming the Engine ECU with the new Custom DPF Removal software, we then proceed with a FREE Smoke-Correction service to ensure the vehicle won#8217;t smoke and it will continue to pass an MOT #8211; This is our guarantee and something that currently NO other company in the UK can offer!

By Custom we mean after downloading the map files and decrypting them from the Engine ECU, we manually scan through the 1000#8242;s of data strings to locate and delete all locations of the DPF map files, however, some data strings for the DPF are interlinked with other sensors on the emissions circuit such as the Lambda Sensor, Temperature Sensor, Air Mass Sensor Exhaust Gas Pressure Sensor. Deleting these data strings will disrupt the sensors and possibly stop them from working which would also throw out the vehicle emissions and could potentially cause a lot of problems if not immediately then over time.

What we do is modify all interlinked data strings to ensure that the DPF map settings are completely removed and the sensor map files are recalibrated to work optimally even without having a DPF installed on the vehicle #8211; This ensures it will not disrupt emissions and again guarantee the vehicle will continue to pass its#8217; MOT.

Nissan Qashqai

How Is This Method Different To Other Companies?

Many companies and mobile tuners are found to be using #8220;Automated Software #8221; and by doing so, they do not manually delete and modify data strings #8211; instead, what they do is download the map files and run it through a piece of software which attempts to automatically locate the DPF data strings and delete them but by doing so they will either purposely skip the interlinked data strings so not to cause immediate errors (this means vehicle will continue to regenerate causing damage to injectors and bore wash pistons over time) or the software will accidentally delete the interlinked data strings and corrupt the map files for the emissions related sensors causing many problems.

What Can I Expect After My DPF Is Removed?

Increase In Power

Increase In Performance

Better Fuel Economy

Smoothed Out Flat Spots In Rev Range

No More Limp Mode

No More Fault Codes

No More Warning Lights

No More Regeneration

GUARANTEED MOT PASS!

After having the DPF removed  from your Vehicle, it will not bring up any error messages and the car will not go into LIMP mode. Also, you will never experience any Regeneration messages where the ECU normally attempts to clean the DPF – this is because the DPF  is no longer existing.

Finally, you will experience an overall increase in performance, smoothing out any flat spots and safeguard the life of both your engine turbocharger.

A new DPF (Diesel Particulate Filter) will range from £700.00 – £1500.00 (+Labour VAT). We can remove the entire DPF for a fraction of this cost and you’ll never have to worry about it ever again.

For more information, please call us on 0844 847 9999.

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