Fuel pressure on D16Z6???

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Nov 21, 2001 | 09:35 AM

REDBARON

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From: DALLAS, TX, 75224

Fuel pressure on D16Z6???

What should the fuel pressure be on my engine. I have an adjustable B&M FPR, and it's set to 50psi. This is my setup. 90 civic hb with 95 sohc vtec, 88-91 si ecu, injectors, and distributor. Any help is really appreciated.
Thanks.

Nov 21, 2001 | 11:14 AM

hvtec93

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Joined: Feb 2001

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From: Staten Island, NY, USA

Re: Fuel pressure on D16Z6??? (VTECHatch)

i have mine set at around 43-44

Nov 21, 2001 | 11:30 AM

REDBARON

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Joined: May 2001

Posts: 2,431

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From: DALLAS, TX, 75224

Re: Fuel pressure on D16Z6??? (hvtec93)

Do you know if you're running rich or lean?

Nov 21, 2001 | 01:22 PM

D-Man

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From: Nowhere, USA, USA

Re: Fuel pressure on D16Z6??? (VTECHatch)

Correct fuel pressure for D16Z is
40 to 47psi with vacuum hose disconnected
30 to 38psi with vacuum hose connected

Nov 21, 2001 | 10:15 PM

Mista Bone

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Joined: Oct 2001

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From: Cincity, OH, USA

Re: Fuel pressure on D16Z6??? (D-Man)

Those pressures are correct, IF you are using a SOHC VYEC ECU. He has a mini-me and the ECU doesn't boost the fuel curve when VTEC kicks in. Therefore you must run richer or high fuel pressure settings.