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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Fuel spewing out of tailpipe.

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Old Aug 23, 2015 | 10:12 PM
  #1  
ocfatman's Avatar
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Fuel spewing out of tailpipe.

Ridiculous question-
Would leaving air filter unhooked/disconnected cause enough richness to push fuel out of exhaust?
Like a lot of fuel?
Did a head cover gasket change and now can't get my 4runner to stop vomiting out fuel.
90 3.0
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Old Aug 24, 2015 | 12:13 AM
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From: I live in New Tripoli Pa out in the woods
Red face

No !!

Are you sure it is fuel and not water ??

If your air intake is disconnected the fuel pump should not even turn on

Unless you have the check connector jumped.
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Old Aug 24, 2015 | 06:22 AM
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ocfatman's Avatar
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Originally Posted by wyoming9
No !!

Are you sure it is fuel and not water ??

If your air intake is disconnected the fuel pump should not even turn on

Unless you have the check connector jumped.
Crap! I'm stuck then. It's fuel alrite. I read on here it could've been a stuck injector, bad cold start injector or fuel pressure regulator letting fuel run into my exhaust.
Changed all those but still have mass amounts slowing out.

So much it's scary.
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Old Aug 24, 2015 | 06:24 AM
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Originally Posted by ocfatman
Ridiculous question-
Would leaving air filter unhooked/disconnected cause enough richness to push fuel out of exhaust?
Like a lot of fuel?
Did a head cover gasket change and now can't get my 4runner to stop vomiting out fuel.
90 3.0

Can anyone direct me to a fuel/air line diagram?
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