Hi, This is Zee. I am new to this . I have 1990 200TE (yess 200). Being a 2 liter 4 cylinder , I should get ,at the least 8 km/liter (this is how it is calculated in this part of the world). What I am getting now is 4km/liter.

I have changed the injector nozzels, fuel pumps (both), tuning,checked the tire pressure, there is no dragging. I have not changed the fuel pump relay. could that be the problem. any advice would be of great help. Zee

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1990 220TE
1988 300GD
1989 yamaha V-MAX(sold)
1993 BMW R100R
1956 Willys Jeep(low bonnet)
1982 Honda XL 250
1987 300D
1994 toyota surf (4runner)2.4 TD EFI
1953 Land Rover

When was the last time the oxygen sensor was replaced?

If it is gone, it could cause the engine to run rich.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record

Zee:
Have you also checked the timing, plugs, points, air and fuel filters? Does the engine idle OK, run smoothly? Any strange symptoms, like short on power or hard to start?

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John

2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)

Click to see 87 300E

Hi jhon , all that you have mentioned have been checked. no abnormal , except while desselarting the car gallops(sort of!!)

Ali , no the oxygen sensor was never changed. I shall also try that. thankz