Can anyone tell me what this "aux fuel pump" is for? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 02-13-2017, 01:41 PM   #1
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Default Can anyone tell me what this "aux fuel pump" is for?

1990 Miata, Turbo, COP, ~90k miles

I'm having issues with the fuel injectors losing pulse at 3k RPM. Found this little guy with burnt connectors and weren't making contact at all anymore. This does not appear to be OEM and looks like the PO did something strange here, but I could be wrong. The orange wire seems to be spliced into the white/red wire that goes to the fuel injector relay.

Does anyone have any clue what this "pump" is for?
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Old 02-13-2017, 01:50 PM   #2
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probably for some terrible fueling solution he hacked together.

I shivered at that picture. Almost afraid to imagine what the rest of the car looks like
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Old 02-13-2017, 01:51 PM   #3
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I think it's for self immolation.
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Old 02-13-2017, 03:24 PM   #4
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That ground tho!
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Old 02-13-2017, 03:44 PM   #5
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are you sure it's a fuel pump and not a water pump for when the car finally surfaces from under water?
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Old 02-13-2017, 04:13 PM   #6
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that car looks familiar...

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Old 02-13-2017, 06:45 PM   #7
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I'd like to see a pic of where the line that is blue is coming from. Please tell me it comes from a fitting screwed into the fuel tank drain plug hole.
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Old 02-13-2017, 06:48 PM   #8
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I'm curious if he bought it from an estate sale of a burn victim

He drove it into the rive trying to put the fire out
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Old 02-13-2017, 06:53 PM   #9
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Quote:
Originally Posted by sixshooter View Post
I'd like to see a pic of where the line that is blue is coming from. Please tell me it comes from a fitting screwed into the fuel tank drain plug hole.
I was going to say, that is nowhere near the OEM fuel hookups.
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