Wanted - SYNERGY 2 Fitting Guide

lordkl[ · Sep 14, 2015

Hey all,
I know there a loads of posts about the Synergy 2, i've read most of them, which, is why i managed to buy a second hand box from E-bay for £80.

However, it doesn't have any instructions for fitting, can anyone help?

Thanks,

dave21478 · Sep 14, 2015

lordkl[ · Sep 15, 2015

Dave21478. You, my friend, are my hero.

Lee

Larahausp1 · Sep 10, 2017

Are they easy to fit? I was thinking of getting one to improve when towing

gstuart · Sep 10, 2017

Larahausp1 said:
Are they easy to fit? I was thinking of getting one to improve when towing

yes they are indeed very easy to fit , i fitted one on my td4 and transformed the engine

u can also have a dashboard switch, which enables u to change the settings whilst still driving

Larahausp1 · Sep 10, 2017

Would i need to change anything else ie fuel pump? Not sure what maf sensor is on but i would say Bosch. Ive seen one on ebay for £50 at moment but dont wanna bugger the car up

gstuart · Sep 10, 2017

Larahausp1 said:
Would i need to change anything else ie fuel pump? Not sure what maf sensor is on but i would say Bosch. Ive seen one on ebay for £50 at moment but dont wanna bugger the car up

no u don't need to change the maf sensor

what engine is in urs plse and what synergy is for sale

if u buy one second hand i would be tempted to speak to ron at synergy to test it for u, to ensure its working as it should and if it needs it can update it for u, checking also all the connectors

that way at least u will know it's working properly and peace of mind it's been tested

gstuart · Sep 10, 2017

here are his contact details , is a really nice bloke

https://www.tuning-diesels.co.uk/

plus u need to ensure it's the correct synergy for ur engine, check with ron if ur unsure

Larahausp1 · Sep 10, 2017

Ok thanks for your help. Mine is a 2003 2.0Td4. The one i seen was a synergy 2a. There are brand new ones with switch and maf for £250. I was considering remap but thought this would be a cheaper and better option. It mainly for towing

gstuart · Sep 10, 2017

Larahausp1 said:
Ok thanks for your help. Mine is a 2003 2.0Td4. The one i seen was a synergy 2a. There are brand new ones with switch and maf for £250. I was considering remap but thought this would be a cheaper and better option. It mainly for towing

i think ron would only charge around £20-30 to update it for u , as with the switch inside u can switch from eco to power whilst driving , ideal if ur towing

the synergy has a switch that is a maf compensator , so if ur maf is slightly weak it will boost the signal

think that was the right one, a 2A , but give ron and ring and he will soon guide u , all about peace of mind and therefore once u fit the box it will all be updated , the older ones without the update u can't use the switch whilst on the move , u have to stop and adjust it, updated , lift foot of accelerator and move switch then back onto pedal

hope that helps

Larahausp1 · Sep 10, 2017

That's great and thanks for yoyr help. You know much more on the freelander? I have like a solenoid air sound when under load

hd3 · Sep 10, 2017

Would i need to change anything else ie fuel pump?

no

Not sure what maf sensor is on but i would say Bosch. Ive seen one on ebay for £50 at moment but dont wanna bugger the car up

either use the right Bosch maf .. or ..
get the pierburg maf with the synergy ( from 'tuning diesels' )

with the pierburg maf .. the maf mapping inside the synergy
gives a slightly stronger signal than the mapping for the bosch map
also the highest setting '10' has a stronger maf mapping than
settings '6' thru '9'

ron at 'tuning diesels' will also customize a 'synergy' if requested
( e.g. .. i requested that the highest pierburg maf mapping
( be connected to all synergy settings meant for the pierburg maf

with the pierburg maf .. and with the egr valve replaced with a 'delete' unit
it's then feasible to use any of the synergy settings .. 1 thru 10

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Nodge68 · Sep 10, 2017

Larahausp1 said:
Ok thanks for your help. Mine is a 2003 2.0Td4. The one i seen was a synergy 2a. There are brand new ones with switch and maf for £250. I was considering remap but thought this would be a cheaper and better option. It mainly for towing

A remap will give better results than what can be achieved by the Synergy. The main advantage of the Synergy, is it makes the standard ECU compatible with a cheaper Peirburg MAF. A decent remap can do that anyway. It can also be transferred to another vehicle, which a remap can't.

Be cautious using increased torque while towing. I upset my auto box by using too much torque while towing.
The extra torque available with a Synergy or remap will soon eat up the safety margin that LR built into the drive train.

gstuart · Sep 10, 2017

Nodge68 said:
A remap will give better results than what can be achieved by the Synergy. The main advantage of the Synergy, is it makes the standard ECU compatible with a cheaper Peirburg MAF. A decent remap can do that anyway. It can also be transferred to another vehicle, which a remap can't.

Be cautious using increased torque while towing. I upset my auto box by using too much torque while towing.
The extra torque available with a Synergy or remap will soon eat up the safety margin that LR built into the drive train.

Plus 1

i had the bosch maf and set my synergy on number 2 , any higher and it also made the gear changes on my auto abit jumpy

liked the idea of the dashboard switch , so u could have that little bit of extra power when req

Larahausp1 · Sep 10, 2017

Thanks for info would you recommend leaving as standard and just replace all hoses? I have already fitted a egr bypass and crank breather

Larahausp1 · Sep 10, 2017

Im thinking hoses because i get a ssound like from a solenoid or something to do with air when under load

Larahausp1 · Sep 11, 2017

Nodge68 said:
A remap will give better results than what can be achieved by the Synergy. The main advantage of the Synergy, is it makes the standard ECU compatible with a cheaper Peirburg MAF. A decent remap can do that anyway. It can also be transferred to another vehicle, which a remap can't.

Be cautious using increased torque while towing. I upset my auto box by using too much torque while towing.
The extra torque available with a Synergy or remap will soon eat up the safety margin that LR built into the drive train.

A box with new Maf and switch is £245 i have been quoted £295 for s remap what would you recommend?

Nodge68 · Sep 11, 2017

Larahausp1 said:
A box with new Maf and switch is £245 i have been quoted £295 for s remap what would you recommend?

I'd probably go the remap route myself. Providing it is proper remap that can map out MAF compensation completely. This would then allow power and economy when needed. The MAF is only used for EGR feedback and smoke reduction. So do an EGR delete and remap to remove the MAF requirements will improve the engine well above the ability of the Synergy. You'll need to make sure all your boost hoses are in top condition and fit the EGR delete before getting the remap done.

Madmustang · Sep 13, 2017

I use mine on the lowest settings for fuel economy. I am in no rush to get anywhere these days

Jayridium · Nov 17, 2020

dave21478 said:
View attachment 90682 View attachment 90683 View attachment 90684 View attachment 90685 View attachment 90686 View attachment 90687

Thanks Dave, this post is going to dig me out of a hole, and those instructions should be stickied, or the images moved to the technical archive.

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