Acura Integra 1990–1993 GS, LS, RS, and GS-R Service Manual (P/N/ 61SK703)

• Honda factory service content for GS, LS, RS and GS-R Integras, supplied as a 1,022-page scanned PDF with 1993 U.S. and Canadian model-identification data.
• Covers B17A1 and B18A1 engine repair, including cylinder-head overhaul, timing belt tensioning sequences and oil-pressure testing.
• Separate VTEC Solenoid Valve and VTEC Pressure Switch troubleshooting flowcharts cover circuit diagnosis and related inspections.
• YS1 manual-transmission overhaul includes removal, internal disassembly, synchronizer inspection, thrust-shim adjustment and reassembly, plus cable-operated clutch service.
• PGM-FI diagnosis addresses no-start complaints, sensor circuits, idle control and fuel delivery, supported by wiring information and connector-terminal views.
• Conventional brake and ABS procedures include caliper overhaul, fault isolation, ALB-checker function tests and brake bleeding.
• Scan limitations: MPRA automatic-transmission identification and differential repair are included, but Section 14—Automatic Transmission and final wiring sheets 13–14 are absent.

Model Identification and Scan Scope

Chassis and paint-code tables identify DA9 2-door hatchbacks and DB1 4-door sedans with B18A1 engines, plus the DB2 B17A1 hatchback. The U.S. table identifies DB2 as GS-R. YS1 denotes the 5-speed manual; MPRA denotes the 4-speed automatic.

The scan has a 1990 cover, an introduction marked “First Edition 8/92,” and identification tables for 1993. The introduction lists a 1,198-page print edition. Some scanned pages have reproduction marks and clipped margins.

Engine and Powertrain Documentation

Engine sections outline component specifications for the cylinder head, valve train, engine block, and lubrication systems. B18A1 material includes valve-seal replacement without cylinder-head removal. B17A1 coverage adds manual and air-assisted rocker-arm checks, piston oil-jet inspection and assembly data for the engine oil cooler.

The manual flags two specific damage risks: cylinder-head warpage from improper bolt loosening and bent B17A1 oil-jet nozzles during piston/connecting-rod removal.

Cooling coverage includes radiator-cap and thermostat testing, coolant refilling and bleeding, and water-pump inspection.

Clutch and driveline work extends to pressure-plate and flywheel inspection, release-bearing service, driveshaft/CV-joint rebuilding and intermediate-shaft bearing replacement. Separate differential sections cover backlash, bearings and shim or side-clearance adjustment.

PGM-FI Fuel and Emissions Diagnosis

ECM self-diagnostic procedures support fault-code identification. The fuel section covers PGM-FI main-relay testing, fuel-pressure checks and injector inspection. Idle-control coverage includes Fast Idle Thermo Valve inspection. Variant-specific procedures address the starting air valve and EGR system on B18A1 automatic models, and the B17A1 knock sensor.

Steering, Suspension and ABS

The Fluid Flow Diagram supports diagnosis of the speed-sensitive power-steering system. Procedures cover pump-pressure and assist checks, rack-guide adjustment, and pump and steering-gearbox overhaul. Suspension repair includes hub bearings, ball joints, upper-arm bushings, and front and rear dampers.

The ABS Circuit Diagram supports modulator, pump-motor, wheel-sensor and fail-safe-relay diagnosis. Tool references identify ALB Checker 07HAJ-SG0010B for U.S. models and 07HAJ-SG00200 for Canada.

Body, Climate Control and Electrical Repair

Body procedures cover door and glass adjustment, windshield replacement, moonroof drain and cable work, and separate A/T and M/T Frame Repair Charts. Lever-type and button-type heater controls have separate troubleshooting sections.

The R-12 air-conditioning material covers performance and pressure tests, leak testing, evacuation and charging, plus Nippondenso compressor-clutch service. A/C circuit diagrams remain within the system chapter despite the missing final wiring sheets.

Electrical repair information includes starting and charging tests, U.S. automatic shoulder-belt diagnostics, power windows and locks, and Power Distribution—Circuit Identification diagrams.

Specification Highlights

The technical reference tables provide engine-specific service limits and standard clearances for critical rotating assemblies. Exploded-view diagrams, torque sequences, fluid capacities and electrical test values accompany the component sections. Maintenance tables list coolant, brake-fluid and transmission-fluid replacement intervals.

Lift and support-point diagrams accompany the powertrain-handling precautions. Separate safety warnings address stored ABS hydraulic pressure and R-12 refrigerant work.