ecs light and loss of power

[stephen sykes]

Hello,

Can anyone offer advice for an '88 80q that has
considerably decreased power at all speeds and has an
illuminated 'check engine/ecs' light.  My wife and I
bought the car recently and noticed no problems. 
However, we put a tank of regular unleaded into it
instead of the mid grade we had been using and a day
later the symptoms described above began occurring.

I read in the manual that a poor tank of gas could
elicit this kind of response; any other ideas for what
could be the matter?

Thanks.
Stephen

 

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