Crazy 20v ae86 bogging

Sam2772
Club4AG Regular
Posts: 18
Joined: Tue Dec 16, 2014 5:52 pm

Crazy 20v ae86 bogging

Postby Sam2772 » Wed Jan 04, 2017 4:13 pm

I'm 80% sure it's related to fuel. I have the little fuel pressure regulator on the fuel filter and it's showing 50psi at idle and revving

Any ideas?

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jondee86
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Joined: Fri Jan 11, 2013 10:21 pm
Location: Wellington, New Zealand

Re: Crazy 20v ae86 bogging

Postby jondee86 » Thu Jan 05, 2017 12:55 pm

Fuel pressure should be something like 38psi (pump running engine OFF) and
drop to around 32psi with the engine ON and idling. If you have 50psi at idle
your engine will be running way rich and blowing black smoke.

If you have an adjustable fuel pressure regulator, turn it down some. Also make
sure the vacuum sensing hose connected to the regulator has not fallen off.

Cheers... jondee86
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