car gets horrible gas mileage in city
i have a 1992 honda accord mt 2.2l. It gets good gas mileage on highway but horrible in city. 30 mpg hw and about 17 in city. It use to get what it is suppose to get(22 to 25mpg in city). Spark plugs have been changed, air filter.
There has to be something that causes bad city but good highway gas mileage. Maybe a poor spark at higher rpm's while accelerating as to cause big ineffeciency in city cause there is alot of acceleration in city? I am just wildly guessing here.Does anyone know or can help? |
Are you using the OEM spec spark plugs or have you opted for a non-standard spark plug?
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Originally Posted by shipo
(Post 311509)
Are you using the OEM spec spark plugs or have you opted for a non-standard spark plug?
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How long in both duration and miles are your typical "city" driving trips?
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Originally Posted by shipo
(Post 311528)
How long in both duration and miles are your typical "city" driving trips?
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Check for stored codes.
Is the rest of the ign system up to date (cap, rotor, test wires)? |
Any faults, engine light on?
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Originally Posted by zedjr
(Post 311508)
i have a 1992 honda accord mt 2.2l. It gets good gas mileage on highway but horrible in city.
30 mpg hw and about 17 in city. It use to get what it is suppose to get(22 to 25mpg in city). My town is more suburban than hard core city (stop every block for a light) though. Would guess your issue is one of 3 things: * wrong tranny fluid, spec is for engine oil in tranny * dragging brake * urgency vs. throttle control; unless urgent I shift at 3000 rpm or below. None of these explains a change in mpg though. best. |
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