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[Datsun 1200 encyclopedia]

Zenith EFI

From Datsun 1200 Club

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Categories: A-series Engines | Fuel Injection

Zenith ZEEMS 1 (Zenith Electronic Engine Management Systems) fuel injection is a carburetor-replacement system for Nissan A15 engine (injector and fuel inlet at top)
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Overview

* Fuel pump: Walbro GSL395 (40-50 psi)
* 15 psi injector
* 15 psi fuel regulator
* Throttle body has coolant connections
* Uses stock Sunny Truck electronic distributor 22100-G5110
* ECT sensor goes in back of head (heater hose port)

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PROCHEM SERVICE PARTS LIST
ZEEMS I A15 CERTIFIED FUEL SYSTEM
ITEM # PART DESCRIPTION SERVICE PART NUMBER
 1 THROTTLE BODY ASSY. W/O ECU C282-20098
 2 GASOLINE INJECTOR (O-RINGS INCL.) C282-366
 2A O-RING KIT (GASOLINE INJECTOR & FUEL PRESSURE REG.) C282-14
 3 GASOLINE FUEL PRESSURE REGULATOR C282-281
 4 AIR TEMPERATURE SENSOR C282-6
 5 MANIFOLD ABSOLUTE PRESSURE SENSOR (MAP) C282-239
 6 MANIFOLD GASKET KIT C282-362
 7 ENGINE COOLANT TEMPERATURE SENSOR (ECT) C282-298
 8 MANIFOLD ADAPTOR KIT W/ HARDWARE & GASKETS C282-347
 9 HEAT SHIELD B190-176
10 OXYGEN SENSOR C282-355
11 ENGINE WIRING HARNESS E784-161
12 GASOLINE FUEL PUMP C282-238
13 GASOLINE FUEL FILTER (3/8" BARB) C282-224
14 ENGINE CONTROL UNIT (ECU) C282-326-44
* KIT, GSKT, MANFLD
* HARNESS, ENG, A-15, EFI, ZEEMS
* ASSY, THROTTLE BDY, W/O ECU
* SENSOR, COOLANT, A15, EFI
* SENSOR, AIR TEMP, A15, EFI
* SENSOR, MAP, A15, EFI
* ECU, NISSAN, A15, EFI
* FILTER, FUEL, EFI
* PUMP, FUEL, EFI
* SENSOR, OXY, A15, EFI
* O-RING KIT, FUEL PRESS & INJ
* REGULATOR, FUEL PRESSURE
* INJECTOR, GASOLINE (O-RING INCL.)

Zenith ECU
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A15 Industrial Engine

Zenith Power Products Industrial Engine
http://zenithpp.com/engines_a15.htm
Intermittent output (SAE Gross J1349) 46 HP/3,600 rpm 
Continuous output (SAE Gross J1349) 39 HP/3,600 rpm 
Peak torque (SAE Gross J1349) 11 kg-m (80 ft-lb)/2,200 rpm 
Minimum fuel consumption 225g/Hp-hr (0.496 lb/HP-hr)/3,200 rpm 
Fuel and type Gasoline, 4-cycle, O.H.V. 
Cylinder arrangement 4 in-line 
Combustion chamber Wedge shape 
Bore x stroke 76mm x 82mm (2.99 x 3.23 in) 
Total piston displacement 1,487 cc (90.74 cu in) 
Compression ratio 9.0 : 1 
Length x width x height (standard model) 
  527.8 x 530.8 x 576.3mm (20.78 x 20.90 x 22.69 in) 
Dry weight (standard model)* 103kg (227 lb)

POST Zenith Fuel Injection
174_667ce402c62f0.jpgPost 498539

Throttle Body Zenith A20098 (dated 2004)
174_667ce420b0746.jpgPost 498539

Throttle body bolts to adapter on stock manifold. Has side air inlet on downdraft throttle body
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IAT (Intake Air Temperature) in intake tube
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MAP sensor bolts to back of throttle body
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wiring diagram
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Carpet Cleaning Machine

 V I D E O  Prochem Performer 405 truckmount (click to view)
hqdefault.jpg
A15 Industrial Engine
carbureted
65 hp
OR A12 Industrial Nissan Engine 32hp
A15 
governer $1009
2002 PowerVac II (48hp)
2002 Performer (48hp)
2002 Performer 405 (48hp)
Everest truckmount
A15
Zenith EFI fuel injection (ZEEMS) 

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