I BUY A OLD BMW 1986 325E.THE ENGINE RUN GREAT AT FULL THROTLE,BUT BELOW 2500 RPM ENGINE BOG,
CUT,IDLE SPEED IS ROUGH.THE CHECK ENGINE LIGHT
ALWAYS ON.I WANT TO READ THIS CHECK ENGINE CODE
BUT I DONT HAVE THE SPECIAL TOOL TO READ IT AND
THE FIRST BMW DEALER IS 600 KM FROM WHERE I LIVE.
You can't use a tool to pull codes from an '87 BMW 325(e). You have the 2.7 liter and your DME, or computer is a Motronic. If you had a 325i, then a tool could read the codes because the computer was upgraded that year to a Motronic 1.1 system with a round plug in under the screw cap on the driver's side under the hood. The only tool you can buy is the one for resetting the service interval light and resetting the oil change light. To answer your question about going about finding your driveability problem would be to get a BMW Bentley Manual. This manual shows you how to use a standard voltmeter to check everything from your computer plug in. Your computer is located above the glovebox.
Good Luck,
~Stillin~
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