Low MPG in '91 DX
I have a '91 with 145,000, my dad has a '90 with 75,000. He get 38+ I get 28 mpg.
My plugs and leads, ignitor, fuel and air filter are new, where should I look next for the gas hog? I recall having a vacuum gauge will help in isolating some parts failures in fuel delivery? |
Some of the gas mileage depends on how (smooth easy stops and starts, jackrabbit stops and starts) and where (stop&go city, highway) you drive.
Things to check: -timing to spec -plugs gapped correctly -valve clearances correct -how's the fuel/air mixture (lean or rich; black tail pipe can mean too rich) |
Thanks Chris
Timing/gaps are good, will check the tailpipe soot. The valves I don't know about right now.
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Maybe check the fuel filter, I know it's small but you never know.
Renato Team TWM Performance |
Check vacuum lines.
There's a thin one that leads from the intake manifold to a sensor (MAP, I think) on the firewall. Take care, ChrisS |
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