VG30i HB poor economy

Forum for the Xterra, Frontier and Hardbody, the smaller workhorses of the Nissan lineup!
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deerhurst
Posts: 15
Joined: Mon May 27, 2013 7:28 pm
Car: 1986.5 D21 Hardbody 4x4 VG30i

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My 86.5 HB has a VG30i and 4.11 gears and 235-75-15s.

My fuel mileage has been dropping lately. 19-20ish city last spring down to 17 and 16 this last fill up. I do have an exhaust leak but its been there for years. That will be replaced when I feel I can afford upgraded exhaust manifolds and full exhaust. Im thinking about replacing the injector O-rings.

Any suggestions?

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Rev_D21
Posts: 5946
Joined: Sun Jan 12, 2003 9:49 pm
Car: 1986.5 D21 LB HD 2WD V6 5Speed
1991 D21 Reg 2WD Auto
1995 D21 Reg 2WD 5Spd
1996 D21 Reg 4WD 5Spd
2012 Versa 1.6S 5-Speed
Location: Somwhere in Western NY
Contact:
Contact Rev_D21

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Do you believe the injectors are leaking?
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deerhurst
Posts: 15
Joined: Mon May 27, 2013 7:28 pm
Car: 1986.5 D21 Hardbody 4x4 VG30i

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I really have no idea. Is there a spot I should start at to see if I can track down anything?
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User avatar
Rev_D21
Posts: 5946
Joined: Sun Jan 12, 2003 9:49 pm
Car: 1986.5 D21 LB HD 2WD V6 5Speed
1991 D21 Reg 2WD Auto
1995 D21 Reg 2WD 5Spd
1996 D21 Reg 4WD 5Spd
2012 Versa 1.6S 5-Speed
Location: Somwhere in Western NY
Contact:
Contact Rev_D21

Post

Have you hooked up a vacuum gauge to get an idea of the general health of the engine?
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