So....anyone up for a little Sherlock Holmes action?
my happy little eta used to get 30+ MPG... until last November, when it suddenly dropped into the low 20s and has never come back in spite of absolutely babying the gas pedal and changing the following parts(they needed it anyway...)
Fuel hoses
Spark plugs(looked fine)
Dist. cap + rotor
Air filter
Timing belt
Water pump
Coolant
Clutch
Muffler
O2 sensor
New front wheel bearings
Lubed all brake calipers and checked for dragging brakes
Changed to less agressive rubber on my winter bottlecaps
4 wheel alignment... all numbers in the green
None of the above seems to have had the slightest impact.


The odd thing is that gas doesn't seem to be leaking anywhere, and if the injectors were messed up, the plugs would have deposits on them. Power seems fine. I've checked every underhood electrical connection I can find, and the fault code reader is coming up clean.
This all seems to have started after I installed a new clutch, but I can't find a link to the problem from that event. with the rear wheels in the air and the car in neutral, it is easy to spin the drivetrain by hand. I would think it would take an awful lot of drag to take 8-10mpg away!
If an electrical connection failed and the car was running in a cold start condition all the time, wouldn't the plugs be carbon fouled?
Soooo....all you E30 wizards....begin flexing!
my happy little eta used to get 30+ MPG... until last November, when it suddenly dropped into the low 20s and has never come back in spite of absolutely babying the gas pedal and changing the following parts(they needed it anyway...)
Fuel hoses
Spark plugs(looked fine)
Dist. cap + rotor
Air filter
Timing belt
Water pump
Coolant
Clutch
Muffler
O2 sensor
New front wheel bearings
Lubed all brake calipers and checked for dragging brakes
Changed to less agressive rubber on my winter bottlecaps
4 wheel alignment... all numbers in the green
None of the above seems to have had the slightest impact.



The odd thing is that gas doesn't seem to be leaking anywhere, and if the injectors were messed up, the plugs would have deposits on them. Power seems fine. I've checked every underhood electrical connection I can find, and the fault code reader is coming up clean.
This all seems to have started after I installed a new clutch, but I can't find a link to the problem from that event. with the rear wheels in the air and the car in neutral, it is easy to spin the drivetrain by hand. I would think it would take an awful lot of drag to take 8-10mpg away!
If an electrical connection failed and the car was running in a cold start condition all the time, wouldn't the plugs be carbon fouled?
Soooo....all you E30 wizards....begin flexing!
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