Question about 1987 Pontiac Fiero
HI. this sounds more like an obstruction in the fuel lines or a faulty fuel pressure regulator. i recommend doing a fuel pressure test. the pressure should be at least 9-13 psi. If not, check for crimped lines or disconnected electrical connectors. this readings are for the 2.5L Engine.
You would check the pressure, by connecting the pressure gauge on the filter inlet pipe on the fuel rail assembly when dealing with the 2.8L Engine.You would need to remove the fuel pressure regulator of course and bleed the system as well. the reading should be 40.5-47 psi (280-325 kPa). be sure to turn the ignition key in th on position and, let the pump run for 2 seconds. If pressure is low or zero, check for a restriction or blocked fuel line. Also check the pressure regulator and the pump relay as well.
If you could let me know which engine you are runinng, this will help. is it a 4 or 6 cylinder?
Posted on Jun 22, 2009
It could be a lot of things. one of the engine sesnors could be bad
giving the computer a bad input and then it will not allow it to run.
You could have an issue with low fuel pressure or bad gas. if you did
some engine work to this the timing could be way out of wack. these are
just a few of the possabilities let me know what lead up to this so
maybe I can help you out further.
good luck :)
Posted on Jun 22, 2009
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Posted on Jan 02, 2017
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