Question about 1994 Geo Metro

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Not getting fuel

Fuel pump does turn on

Posted by Anonymous on

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  • Geo Master
  • 20,706 Answers

Which engine?
my guess, is it really dont start.
so the assumption is not getting fuel.???
got spark? (3 or 4 cylinders , 1.0 or 1.3L)?
compression at spec? 150 min, warm. or hot?
if test fuel works or runs for 3seconds , proving engine is ok but no fueling?
that and only that means not getting fuel.

the fuel pump on many cars does not turn on , until you crank the engine.
The ECU decides this, (software inside) and varies.
some run for 3 seconds key on. others, not. depends on country and year, and engine sizes, (only year was stated)

EFI rules to use:
ECU does not inject if spark is bad. BY DESIGN.
nor at wide open throttle ,cranking (bad TPS?)
all ECU operater the pump, when cranking and running.
so check the fuel pressure with a real gauge, cranking.
only that works.

Posted on Sep 14, 2014

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