Description

Infiniti G20 1992 Service Manual – OEM Factory Service Manual

If you are working on an Infiniti G20 from 1992, you need the Infiniti G20 1992 Service Manual on your bench. Not a third-party reprint, not a scanned copy of a copy—this is the original factory publication from Nissan Motor Co., Ltd. 526 pages of procedures that came out of the engineers who designed the P10 series. I’ve been turning wrenches for 28 years, and I can tell you: the difference between a job that holds and a comeback is in the torque values and the sequence. This manual has them.

Engine Mechanical (EM): What the Section Covers

The Engine Mechanical section (EM) details the cylinder head, timing chain, piston rings, and valve clearance. You get the exact bolt tightening sequence for the cylinder head—measured in degrees after initial torque, not guessed. The manual also covers the oil pump and water pump removal. If you skip the specified order on the intake manifold, you’ll warp it. I’ve seen it happen.

Torque Specs and Fluid Capacities – Why OEM Matters

Every fastener on the G20 has a factory torque value. The manual lists them per section. For example, the oil pan bolts require a specific inch-pound torque. You won’t find that in a generic manual. The Lubrication & Cooling Systems (LC) section gives you capacities for coolant and oil, as well as the exact bleed procedure for the cooling system. Use aftermarket specs and you risk a leak or worse.

Does This Manual Cover the Fuel and Emission Systems?

Yes. The Engine Fuel & Emission Control System (EF&EC) section includes the fuel injection system, emission controls, and the accelerator control cable adjustment. The manual provides diagnostic steps for the EFI system, including resistance checks on the sensors and the throttle position sensor adjustment. No guesswork—just the factory flow chart.

Brake System, Steering, and Body: Factory Procedures

The Brake System (BR) section covers disc and drum brake specs, master cylinder bleeding sequence, and parking brake adjustment. The Steering (ST) section includes the rack-and-pinion removal and tie rod end torque. Body (BF) covers interior trim removal and door panel disassembly. These are the exact same procedures that Infiniti dealerships used.

3 Reasons to Use the OEM Manual for Your G20

First, the torque values are verified by the manufacturer. One mistake on a control arm bolt and you lose a suspension bushing. Second, the wiring diagrams in the Electrical System (EL) section are original—wire colors, connector views, and splice locations match the harness. Third, the safety notes are specific to the G20’s SRS airbag system (page 3). That supplement shows the airbag disable procedure, which you must follow to avoid deployment.

Electrical System (EL): Wiring Diagrams You Can Trust

If you are chasing an intermittent electrical fault, the EL section gives you the factory schematic for the entire vehicle. It includes the fuse block layout, relay locations, and ground points. The manual also includes the connector pin numbering—critical when you are backprobing a control module. For a broader understanding of the P10 platform, refer to the Automotive Industry Overview. Specifications align with industry standards as noted in Automotive Industry Overview.

Source Authenticity: Why This Is the Only Manual You Need

This is a direct Nissan publication, not a reprint. The PDF is scanned from the original factory manual—no redrawn tables, no missing pages. The foreword states the manual is based on the latest product information at the time of printing. Aftermarket manuals take shortcuts. This one does not. If you have a 1992 G20 (P10 series), this is the only service manual that matches the wiring and emissions exactly.

Related Manuals

• INFINITI G20 1991 Service Manual
• INFINITI G20 1992 Service Manual
• Infiniti FX35, FX50 2009 Service Manual – OEM Factory Specs

Frequently Asked Questions

Is this the complete service manual for the 1992 Infiniti G20?

Yes, 526 pages covering all systems.

Does it include wiring diagrams?

Yes, the Electrical System section (EL) includes complete wiring diagrams for the G20. These are factory schematics, not redrawn. They show the exact wire colors, connector pinouts, and splice locations. If you are troubleshooting an intermittent electrical fault, this is the only way to trace the circuit without guessing. The manual also includes the location of fusible links and relays.

What about the 1993 model year?

This manual covers the 1992 model. For the 1993 model, there is a supplement that you can find in the related manuals listed above.

Can I print this manual?

Yes, the PDF is printable with no restrictions.

Don’t waste time on third-party interpretations. Get the data that the factory used. Access the Factory Manual today.