Author Topic: Common Rail chip upgrade  (Read 2265 times)

Offline Gbuss666

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  • Body: SUV
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  • Fuel: Diesel
  • Model Grade: Sport
  • Transmission: Automatic
  • Year: 2013
Common Rail chip upgrade
« on: July 02, 2020, 08:22:29 pm »
Hi all, I’m new to the group and just bought a 2013 2.2d Sport 175 AWD to use as a tow car. It’s replacing my much loved 2009 2.2 Mazda 6 Sport 185.  I’ve noticed the fuel economy is poor in comparison and I’m contemplating a common rail after market chip. Most claim extra torque, BHP and most importantly up to 15% economy gain. 2 questions. Has anyone else used one with positive results and if so is the plug to the common rail easily found? Many thanks.

Offline Fangface

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  • Body: SUV AWD
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  • Engine: 2.2L 175ps
  • Fuel: Diesel
  • Model Grade: Sport Nav
  • Transmission: Manual
  • Year: 2015
Re: Common Rail chip upgrade
« Reply #1 on: August 13, 2020, 11:20:33 am »
I used one for a while but have since taken it out as I found I was having issues with diesel contamination in the oil sump due to failed DPF regens.  It may not have been the chip but I removed it just in case.  I used it for 2 years and the car seemed a bit more responsive but I found the fuel consumption to be the same or worse when set to better performance and in order to get better fuel consumption the performance dropped.  I suppose it is common sense to expect higher performance to come at a higher fuel cost but the claims made from these chip companies don't always stand up to scrutiny.

Offline George IV

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  • Model Grade: SE-Lux Nav
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  • Year: 2015
Re: Common Rail chip upgrade
« Reply #2 on: August 14, 2020, 10:53:07 pm »
I bought a 2016 2.2 diesel 150bhp at Xmas  and was not happy with power so i had it remapped up to 230bhp + extra 100f/lb torque  Acceleration a lot quicker and smother  Fuel consumption is app.55mpg on motorway at 75   and 45-48 around town. Cost was £200.00  not cheap but i think this is a better solution than plug in chip in long run.
PS  my last car was also a Mazda 6 2.2 sport and that was also remapped to extent that i could leave a scooby for dead at lights   lol

Offline ceegee

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  • Year: 2019
Re: Common Rail chip upgrade
« Reply #3 on: September 08, 2020, 08:12:59 pm »
You are comparing an AWD SUV with a 2wd saloon so it is unlikely the MPG for the CX 5 will match the Mazda 6, also the CX 5 is heavier than the 6

Offline Gbuss666

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  • Posts: 6
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  • Body: SUV
  • Colour: Meteor Gray Mica
  • Engine: 2.2L 175ps
  • Fuel: Diesel
  • Model Grade: Sport
  • Transmission: Automatic
  • Year: 2013
Re: Common Rail chip upgrade
« Reply #4 on: March 08, 2021, 09:15:16 pm »
Thanks for the replies. I went for the chip but I wasn’t convinced it was doing anything performance or economy wise so I returned it for a refund. The guys I bought it off were happy to refund.

Offline George IV

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  • Body: SUV
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  • Engine: 2.2L 150ps
  • Fuel: Diesel
  • Model Grade: SE-Lux Nav
  • Transmission: Manual
  • Year: 2015
Re: Common Rail chip upgrade
« Reply #5 on: April 01, 2021, 03:26:42 pm »
Highly recommend the remap as i stated above  performance is quite a bit better and fuel economy is improved  Its a win win situation  If its the fuel economy you want then get the remap set to 210  will still see better acceleration and much better fuel.
My car is set at 240bhp and is returning 52-55 at 70mph on motorway 42-46 round town.

Offline Kevlincoln

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  • Fuel: Diesel
  • Model Grade: Sport Nav
  • Transmission: Automatic
  • Year: 2017
Re: Common Rail chip upgrade
« Reply #6 on: April 02, 2021, 02:09:31 pm »
How did the remap affect your insurance?

Mazda CX-5 Forums

Re: Common Rail chip upgrade
« Reply #6 on: April 02, 2021, 02:09:31 pm »