The service and repair manual for the 1990 Porsche 911 — the 3.6L H6 engine, 6 trims. Matched to this exact model year, so the specifications and sequences are the ones Porsche published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1990 |
|---|---|
| Engines | 3.6L H6 — 220 cu in, SOHC |
| Trims | Carrera 2 Targa 2-Door · Carrera 2 Convertible 2-Door · Carrera 2 Coupe 2-Door · Carrera 4 Convertible 2-Door · Carrera 4 Coupe 2-Door · Carrera 4 Targa 2-Door |
| Federal record | 4 recalls · 2 complaints · 82 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1990 911 manual
03 / ContentsSections in the manual
- Quick Lookups 67
- General Information 1,368
- Accessories & Equipment 27
- Heating, Ventilation & A/C (HVAC) 81
- Brakes 28
- Maintenance 58
- Drivelines & Axles 21
- Restraints 69
- Electrical 86
- Steering 43
- Engine Mechanical 133
- Suspension 37
- Engine Performance 257
- Transmission 62
- Steering Wheel Nut 33
- Air Bag Module-To-Steering Wheel 90
04 / Known issuesRecalls on federal record for the 1990 911
- Latches/Locks/Linkages — hood › latch · 91V012000Latch failure could cause hood to open and obstruct thedriver's front view which could result in an.
- Steering — steering wheel/handle bar · 96V147000This condition could result in noise and free play in the steering system and if left uncorrected, w.
- Electrical System — wiring › fuses and circuit breakers · 93V204000The overloaded resistor can create heat sufficient toignite the plastic air pipe to which it is conn.
- Vehicle Speed Control · 92V142000Impaired throttle plate operation could prevent theengine from returning to idle, resulting in unwan.
Owners have filed 2 complaints and Porsche has issued 82 technical service bulletins for the 1990 911. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1990 911 manual
Is this manual specific to the 1990 911?
Yes. It is the OEM manual matched to the 1990 model year, covering the 3.6L H6 across the Carrera 2 Targa 2-Door, Carrera 2 Convertible 2-Door, Carrera 2 Coupe 2-Door, Carrera 4 Convertible 2-Door, Carrera 4 Coupe 2-Door, Carrera 4 Targa 2-Door trims. Specifications and procedure sequences are the ones Porsche published for this year.
What 1990 911 problems does it help with?
4 recalls are on federal record for the 1990 911, covering latches/locks/linkages, steering, electrical system. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Porsche dealers.
Does it include 1990 911 wiring diagrams?
Yes — the complete wiring diagrams for the 1990 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $29.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther 911 years and 1990 Porsche models
1996 911 · 1995 911 · 1994 911 · 1993 911 · 1992 911 · 1991 911 · 1989 911 · 1988 911 · 1987 911 · 1986 911 · 1985 911 · 1984 911 · all 43 years