Wife's 1989 244 auto; B230. Has 185K on clock. Good maintenace. For years this car gave right at 29 miles per gallon. Just recently I decided to check it and twice I'm getting 20/21 mpg. Surprised me.
Last year the ECU went out. I was told the original was problmatic, (wouldn't start suddenly; would not switch on FP) I replaced it with the updated part number many of you have done. (Sorry I don't have the p/n's handy) I mention this because this is the only significant change that has happened with this car.
What are the first items that I should check that could be killing my mpg?? I plan to do tune-up items; plugs, etc. I'm asking here because I'm wondering if there is a particular part that degrades and furnishes this economy loss.
I have noticed a drop in mpg's with at least two of our non-Volvo vehicles since Ethanol was given to us. I'd hate to think that is the reason for this because it is a discouraging drop.
Comments appreciated,
Dennis in E WA state
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