6.1. General information and precautionary measures

Specifications

System type

Models with the engine of 1985 cm 3 (1986-1993)
System of injection of LH-Jetronic fuel
Models with the engine of 1985 cm 3 (1994 and later)
Control system of the SAAB Trionic SFi engine
Models with the engine of 2290 cm 3 (1990-1992)
System of injection of LH-Jetronic fuel
Models with the engine of 2290 cm 3 without turbo-supercharging (1993)
System of injection of LH-Jetronic fuel
Models with the engine of 2290 cm 3 with a turbo-supercharging (1993 and later)
Control system of the SAAB Trionic SFi engine

Main characteristics of fuel system (system of injection of LH-Jetronic fuel)

Resistance of the auxiliary air valve (at 20 °C) 40-60 Ohm

Resistance of the valve of additional air (IAC) (the idling stabilization valve) (at 20 °C):

LH2.2 version
20 ± 5 Ohms
LH2.4, LH2.4.1 versions
7 ± 5 Ohms
LH2.4.2 version
12 ± 3 Ohms
Productivity of fuel
pump 9
00 cm 3/30 sec. (at least)

Fuel measuring instrument sensor block resistance:

full tank
350 Ohm
empty tank
35 Ohm

Idling turns:

system of injection of LH-Jetronic fuel without
stabilization of idling (IAC)
850 ± 75 rpm
system of injection of fuel
LH-Jetronic with IAC
it is supported by the IAC valve
on 850±50 rpm it (is not regulated)

Contents WITH on single turns:

B202 Turbo (1985)
1.3 ± 0.3%
B202i (1986 and later)
1.0 ± 0.5%
B234i (with 1991 and later)
1.0 ± 0.5%

Characteristics of fuel system (control system of the Trionic engine)

The sensor of absolute pressure in the pipeline (it is expressed in absolute units of pressure):

Pressure

Tension (approximate)

- 0.75 bar
0.48
- 0.50 bar
0.95
0 bars
1.9
0.25 bar
2.4
0.50 bar
2.8
0.75 bar
3.3

The sensor of temperature of the soaked-up air (IAC):

Temperature (°C)

Tension (approximately)

- 30
4.5
- 10
3.9
20
2.4
40
1.5
60
0.9
80
0.54
90
0.41

Situation switch
throttle:

Resistance

Tension

Conclusions 1 and 2
1.6 - 2.4
5 ± 0.1
Conclusions 2 and 3 - idling
0.8 - 1.2
0.5 ± 0.4
Conclusions 2 and 3 - it is widely open
2.0 - 3.0
4.5 ± 0.4

Sensor of position of the crankshaft

Resistance (conclusions 1 and 2)
540 ± 55 Ohms

Fuel pressure regulator:

Pressure
3.0 ± 0.1 bars

Injectors

Resistance at 20 °C:

Engines with a turbo-supercharging
12.0 ± 0.35 Ohms
Engines without turbo-supercharging
14.5 ± 0.35 Ohms

Fuel stream size:

Engines with a turbo-supercharging
176 ± 14 ml / 30 sec.
Engines without turbo-supercharging
127 ± 10 ml / 30 sec.

The maximum difference of streams between injectors:

Engines with a turbo-supercharging
18 ml
Engines without turbo-supercharging
13 ml

Idling stabilization valve (additional air):

Resistance at 20 °
With 7.7 ± 1 Ohm

Fuel pump

Type
Electric, located in the fuel tank
Expense at a pressure 3.0 bars
700 ml / 30 sec. (at least)
Fuel measuring instrument sensor block resistance
33-370 Ohm
Idling turns
Are supported by the valve of stabilization of idling on 850 ± 50 rpm (are not regulated)
Idling mix
The lambda probe copes on signals

Turbocompressor

Type:

Models from 1985 to 1988 the issue.
Garrett T3
Models from 1989 to 1990 (without catalytic converter)
Garrett TE05
Models since 1990 of the issue (with the catalytic converter)
Garrett T25
Models since 1991 (except 9000 Aero with the manual transmission)
Garrett T25M
Models since 1993 of the issue.
Garrett TD04

Fuel tank

Volume:

Models from 1985 to 1989 the issue.
68 l
Models from 1990 to 1992 the issue.
66 l
Models of 1991 of the issue.
62 l

The recommended fuel type

Characteristic

Value

B202i (1986-1988)
AI 98 ethylated or unleaded

B202 of Turbo (1985-1993)
AI 98 ethylated or unleaded
All other models
AI 98 is unleaded

Efforts of tightening of threaded connections, Nanometer

Sensor of position of the crankshaft
8
Final collector to a head of cylinders
25

Nuts of fastening of a turbocompressor to a final collector:

T3/TE05
40
T25/TD04
22
Flange connections of sections of the exhaust system
40
Reception pipe to a turbocompressor
25

Inlet pipeline:

B202 engine
18
B234 engine
22
Bolts of fastening of the built-in cooler to the condenser
8
Lambda probe
55
Bolt of the top union of the oil cooler
18