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Old 07-03-2020, 05:59 PM   #1 (permalink)
SkauneJohan
EcoModding Lurker
 
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Join Date: Jun 2020
Location: Scania, scandinavia, europe
Posts: 70

The cruiser - '93 Mercedes 200D
90 day: 38.11 mpg (US)

The rocket - '94 Mercedes E220
90 day: 32.29 mpg (US)

miss Habanero - '95 Audi A6 2.5 TDi Avant
90 day: 43.52 mpg (US)

Annie - '89 mazda 626
90 day: 29.51 mpg (US)
Thanks: 1
Thanked 9 Times in 8 Posts
1993 Mercedes w124 diesel modifications

Did my first engine modification yesterday, removal of throttle plate(this is a diesel engine)

People I talk to say it is purely for creating vacuum to activate EGR nothing else, since this car was imported it has EGR, many same engine and yearmodel cars were built without this.

This is how it looked like before


Nice, finally gone and yuk full of soot from the EGR


End result


And what can I say after driving 160km(100miles)
WOW!!! never thought it would make this big difference, she has a lot less engine braking so I can coast a lot longer (automatic transmission) and partial throttle response is a lot better,
in fact partial throttle response is so much better that I can leave her in D instead of manually shift to 3rd gear when city driving at the speeds 30km/h and 40km/h.
Same thing in roundabouts no need to use kickdown(or manually downshift) to get her initally moving out of the roundabout, she scoots a lot quicker with less throttle input (or rather the need for full throttle in city driving is gone now)

Another positive is that engine stays cooler, before even during the winter short idling in traffic lights made temp go quite high and it was slow to go down to normal again, now it is slow to rise and fast to go back to normal

The bigger question is, how will this affect fuel consumption my guess is probably for the better

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1993 mercedes w124 200D automatic 75hp



1989 mazda 626 2.2 automatic 116hp

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