check engine light FIAT TEMPRA 1988 Service And Owner's Guide

gjpjgjjl 'READING' YOUR SPARK PLUGS
Champion explain how the condition of spark plug firing ends can act as a guide to the state of tune and general condition of the engine. The examples shown are assumed to be the correct grade for the engine.
NORMAL
Core nose lightly coated with grey-brown deposits. Electrodes not burning unduly
-
gap increasing by about 0.01 mm every 1,000 miles approximately (with the use of unleaded fuel). Spark plugs correct for engine.
OIL FOULING
Deposits can short-circuit firing end, weakening or eliminating spark. Causes: worn valve guides, bores or piston rings, or while new engine is running-in. Replace spark plugs. Cure oiling problem.
SPLIT CORE NOSE
(May first appear as hair-line-crack). Probably caused by: Over-advanced ignition timing. Faulty distributor advance mechanism. Use of low octane fuel. Weak mixture. Manifold air-leaks. Cooling system problems. Incorrect gap-setting technique.
HEAVY DEPOSITS
Possible causes: Fuel or oil additives. Excessive upper cylinder lubricant. Worn valve guides. Unvarying speed (stationary engine). Replace spark plugs.
OVERHEATING
Likely causes are: Over-advanced ignition timing, or faulty distributor advance mechanism. Use of low octane fuel. Weak mixture. Discard spark plugs showing signs of overheating, and cure the cause.
CARBON FOULING
Look for dull black sooty deposits. (Unleaded fuel carbon fouling can appear similar to oil fouling). Deposits can short circuit the firing end, weakening or eliminating the spark. Check for: Over-rich mixture, faulty choke or clogged air filter. Replace spark plugs.
INITIAL PRE-IGNITION
Caused by serious overheating. Causes are those listed for overheating, but may be more severe. Corrective measures are urgently needed before engine damage occurs. Discard plugs in this condition.
FACT FILE: CORRECT INSTALLATION
• Make sure seating areas are perfectly clean.
• Insert plug finger tight to seat. Ensure plug 'spins' freely.
• PLUGS WITH SEATING GASKET: Tighten to relevant torque setting.
• PLUGS WITH TAPER SEATS: Tighten a further l/16th turn ONLY - no further!
• Overtightening can damage cylinder head or make taper seat plugs impossible to remove.
RECOMMENDED FL LUBRICANTS
FOR YOUR FIAT TIPO ARID TEMPRA
COMPONENT/ TIPO & TEMPRA TIPO SELECTA & TEMPRA SELECTA TIPO & TEMPRA DIESEL CAPACITY 1.4 and 1.6 1.6 and 1.6 i.e. 1.7 D, 1.9 Dand 1.9 TD
ENGINE SELENIA 20K SELENIA 20K SELENIA TURBO DIESEL CAPACITY 3.8 L 3.8 L/4.2 L 5.0 L
MANUAL TRANSMISSION TUTELA ZC80/S -TUTELA ZC80/S CAPACITY 2.0 L -2.0 L
AUTOMATIC TRANSMISSION -TUTELA CVT -CAPACITY -3.5 L (a) -
DIFFERENTIAL(S) FROM GEARBOX FROM GEARBOX FROM GEARBOX CAPACITY ---
STEERING BOX TUTELA K854 TUTELA K854 TUTELA K854 CAPACITY 80 g (b) 80 g (b) 80 g (b)
CONSTANT VELOCITY JOINTS TUTELA MRM2 TUTELA MRM2 TUTELA MRM2 CAPACITY 95 g (each) 95 g (each) 95 g (each)
BRAKE FLUID RESERVOIR TUTELA PLUS 3 TUTELA PLUS 3 TUTELA PLUS 3 CAPACITY (NON-ABS) 0.40
L
(c) 0.40 L (c) 0.40
L
(c)
COOLANT PARAFLU 11 PARAFLU 11 PARAFLU 11 CAPACITY 6.5 L(d) 6.5 L(d) 8.8
L
(d)
WINDSCREEN WASHER TANK AREXONS DP1 AREXONS DP1 AREXONS DP1 CAPACITY 5.0 L 5.0 L 5.0 L
NOTES: (a) DRAIN/REFILL CAPACITY (b) IF MODEL FITTED WITH POWER ASSISTED STEERING USE 0.75 L TUTELA Gl/A (c) IF ABS BRAKING IS FITTED USE 0.52 L TUTELA TOP 4 (d) COOLING SYSTEM AT A CONCENTRATION OF 50% COOLANT TO 50% WATER
CHANGE PERIODS: See Chapter 5, Service Intervals
154

97 Solenoid for automatic cold-start advance device 160 Potentiometer 270 Front cable connection (K.S.B.) 161 Junction between engine lead and facia leads for 271 Maximum turbo boost pressure warning light 98 Engine cut out solenoid on injection pump SPI system switch 99 Cooling fan second speed activation relay 161A Engine lead connection for IAW injection system 272 Front cable connection 100 Fuel pump facia lead connection 163 Bosch SPI electronic injection control unit 273 Front cable connection 101 Electromagnetic sensor for rpm sensor 163A Bosch SPI ignition/injection ECU 274 Front cable connection 102 Turbocharger air pressure switch 164 Diagnostic socket (S.P.I.) 281 Left-hand brake lining connection cable joint 104 10A fuse for ABS device 165 Electric fuel pump 281A Right-hand brake lining connection cable joint 105 Connection for anti-lock brake circuit (Antiskid) 166 Hot Lambda probe 282 CO regulation potentiometer 106 Left hand brake lining wear sensor lead 167 Step motor 286 Electromagnetic sensor on flywheel connection 171 Air temperature sender unit 287 Seat belt undone indicator switch 107 Cut-off control module 173 Throttle position sensor 288 Headlight washer intermittent function 108 Cable connection for air conditioner 174 Absolute pressure sender unit 292 Earth for anti-lock brake system (A.B.S.) 109 Front cable connection 180 Rem. contr. switch for legally specified system 293 Earth for air conditioner fan 111 Electric window ECU supply lead connection 181 Daylight side light remote control switch 294 Facia lead connection 112 Sensor on left front wheel 182 Daylight side light remote control switch 295 Connection between facia cable and rear cable 113 Sensor on right front wheel 184 Power earth 297 EGR device ECU 114 Sensor on left rear wheel 185 Electronic earth 298 Diagnostic socket for EGR device 115 Sensor on right rear wheel 186 Electric sun-roof ECU 299 EGR device control solenoid 116 Hydraulic control unit (A.B.S.) 187 Electric sun-roof circuit connection 300 EGR coolant temperature recording sensor 117 ABS control relay 188 Electric sun-roof end-stop sensor microswitch 301 Potentiometer on injection pump 118 Anti-lock brakes electronic control unit (A.B.S.) 189 Sun-roof operating motor 302 Sensor connection cable junction 119 Device for heated filter 190 Safety pressure switch 303 Low engine oil level indication sensor 120 Heated filter device relay 199 IAW multiple relay 304 Low coolant level indication sensor 121 20A fuse for heated filter device 200 Earth on hydraulic control unit bracket 305 Low washer fluid level indication sensor 122 Device for detecting presence of water in fuel filter 200A IAW injection/ignition ECU bracket earth 306 Oil temperature indication sensor 123 Left fog light 207 Starter enablement relay 307 Oil pressure indication sensor 124 Right fog light 208 Switch on gearbox indicating reverse or neutral 308 Junction with coolant temperature sender unit 125 Connection between front cable and fog light 209 Switch on gear selector leads cables 210 Automatic transmission speed selection ECU (CTX) 311 Front cable connection 126 Fog light switch 211 Parking not engaged warning light 312 Front cable connection 127 Sun-roof activation switch 214 Automatic transmission lead connection 313 Junction between facia lead and legally-specified 129 Electric door mirror control switch 215 T.D.C. AND RPM SENSOR (I.A.W.) leads 130 Electrically-adjustable and heated right-hand door 216 Injection/ignition ECU I.A.W. 314 Relay for legally-specified system mirror 219 1st injector 316 60A fuse for air conditioning system 130-A Electrically-adjustable and heated left-hand door 220 2nd injector 317 40A fuse for air conditioner system mirror 221 3rd injector 318 Diagnostic socket for IAW injection system 131 Left headlight wiper motor 222 4th injector 319 Automatic transmission device display 132 Right headlight wiper motor 224 15A fuse for injectors (Volkswagen) 133 Headlight washer pump 225 Idle speed control solenoid A Economy warning light 135 Left front seat heat pads 226 Provision for air conditioner B Sporty drive warning light 135A Right front seat heat pads 228 Ignition distributor with timing sensor 320 Right rear earth for automatic transmission 136 Air conditioner cable connection 231 Coupling with injection lead (Volkswagen) 137 Air conditioner cable connection 241 Automatic transmission electronic control unit 327 Junction with injector cable 138 Air conditioning system compressor (Volkswagen) 328 Advance cut out heat switch 139 Three stage pressure switch 242 Automatic trans, lead connection (Volkswagen) 329 Remote control switch for shifting advance curve 141 Air Recirculation/outside air intake control motor 243 Automatic trans, lead connection (Volkswagen) 330 Negative battery lead connection 142 Air conditioning system switch 244 ECU for decoding speed selector lever position 331 Prewired engine lead connection 143 Outside air/recirculation switch 245 Solenoid unit on transmission 332 Right hand rod lead connection 146 Air conditioning system ECU 246 Diagnostic connection for automatic transmission 333 Right front seat heating control switch A 40A fuse for engine cooling fan (Volkswagen) 334 Right front seat heating activated warning light B 30A fuse for interior ventilation fan and air 247A Automatic transmission lead connection 335 20A fuse for headlight washer system recirculation motor (Volkswagen) with I.A.W. injection system 336 Air conditioning system switch cable connection C 15A fuse for compressor 248 Automatic transmission lever lock solenoid 337 Ignition coil (1-4) D Interior ventilation fan and air recirculation 249 Kick-down switch 338 Ignition coil (2-3) motor relay 250 Rpm electromagnetic sensor E Compressor dual contact relay 251 Car speed electromagnetic sensor N.D. Connector block welded with ultrasound (band in F Cooling radiator fan first speed relay 252 Multifunction switch unit wiring harness) H Relay for compressor activation 253 Sporty drive switch I Timer for engine cooling fan 261 Junction between facia cable and right rear door Wiring colours: 147 Fast idle valve cables 148 Additional resistor for DIM-DIP circuit 262 Facia lead connection A Light blue 149 DIM-DIP circuit relay 263 Check-panel display B White 150 7.5A fuse for DIM-DIP circuit A Front side light failure warning light C Orange 151 Fuel pump control relay B Driver side front door open warning light G Yellow 152 SPI ECU and injector supply relay C Driver side rear door open warning light H Grey 152A Injector control contactor D Tail-gate open warning light L Blue 153 NA fuel vapour cut-off solenoid E Passenger side rear door open warning light M Brown 154 NC fuel vapour cut-off solenoid F Passenger side front door open warning light N Black 155 10A fuse for fuel pump G Rear side light failure warning light R Red 155A 25A fuse for fuel pump and injectors H Rear fog light failure warning light S Pink 156 Injector and air temperature sensor 1 Right brake light failure warning light V Green 157 Resistor L Number plate light failure warning light z Violet 158 10A fuse for Lambda probe M Left brake light failure warning light 158 5A fuse for I.A.W. ECU 264 Recharging indicator cable connection Most wires have two colours, shown as, for example, 159 Coolant temperature sender unit 269 Air conditioning cable connection CN, which means Orange and Black.

A Accelerator linkages and cables 118,119 Aerial 112 Airbag 14, 63, 128 Air cleaner/filter 51 Air Conditioning 12,41 Alternator, drive belt . . 49, 50, 110 Antifreeze 43, 44 Anti-roll bars 131 Auto-Biography 1 Automatic transmission fluid 45 gear selector cable 102
B Ball-joints steering and suspension 57 Battery disconnecting 36 electrolyte 36 safety 7 Bellows, steering gear (see 'Gaiters') Bonnet 15, 143 Brakes 59 to 62, 134 to 142 bleeding 141 caliper 59 to 61, 135, 137 cylinder (master) 138 discs, front 59, 135 discs, rear 61, 137 drums 60, 136 fluid, check level 35,36 handbrake 61, 142 hoses/pipes 62, 141 pads 59, 135, 137 pressure regulating/proportioning . . . valve (ABS) 140 pressure regulating/proportioning valve (Non-ABS) 139 RPM sensors (ABS systems) .... 140 safety 7 servo 138 shoes 135 wear sensors (non-ABS) 60 Bulb renewal (see 'Lights') Bushes 57 Bumper removal and refitting. 146
c Cables accelerator 118,119 automatic transmission ... 101, 102 choke 119 clutch 46, 101 handbrake 61 Caliper, brakes (see 'Brakes') Camshaft belt 43, 66 Capacities 19,154 Carburettor adjustment 53 removal 117 Catalytic converter 54, 55 safety 6 Central locking 114 Choke 119 Clutch adjustment 46, 100 hydraulic 46, 105 replacement 100 cable 46, 101 Coil, ignition 47, 107, 108 Coil spring 57 Constant Velocity (C.V.) joints (see 'Driveshaft') Contents 4 Controls and switches ... 10 to 14 Cooling system .. 35, 43, 106 to107 change coolant 43 radiator pressure cap 35 Crankcase ventilation system 42 Cylinder head Diesel 87 to 93
Petrol 67 to 73
D Data 17 to 27 Diesel bleeding the system 126,127 fuel filter 52 glow plugs 115 injection pump 56,124 injectors 126 Disc, brakes (see 'Brakes') Distributor 108, 109 cap 47 Marelli Breakerless 48 Marelli Digiplex 2 48, 49 Doors hinges 62 locKs and handles 147 to 150 removal and refitting 147 trim panels 146 Drivebelts alternator 49, 50, 110 camshaft 43 Driveshaft C.V. joints 103 gaiters 45, 103 removal and refitting 103 Drum (see 'Brakes')
E Electrical system 110 to 115 Electronic control module 54 safety 7 Emergency starting 16 Emissions 31, 51 to 56 control 53, 54 legal limits 31 Engine bay layouts 34 Engine dismantling Diesel 95 Petrol 73 Engine mountings Diesel 95 Petrol 83 Engine oil (see 'Oil') check level 34 Engine refitting Diesel 94 Petrol 82 Exhaust manifold 56 Exhaust 56 system 56, 122 Expansion tank 35
F Facts & Figures 17 to 27 Fan 50, 106 Fast idle carburettor 53, 54 fuel injection 54 diesel 55 Filter air 51 diesel 52 petrol 52 oil (see 'Oil filter') pollen 63 Fire Extinguisher . 6 Fluoroelastomers, safety 8 Fuel cut-off switch 13 Fuel gauge 114 Fuel injection 52, 54, 55, 117 Fuel lines/pipes 51 Fuel pump electric 120 mechanical 120 Fuel system 51 to 56 evaporation control system . 54,122 Fuel tank 121 Fumes, safety 6 Fuses 40
Gearbox (transmission) .... 44 to 46 oil (automatic) . . 45 oil (manual) 44 Generator drive belt (see 'Alternator, drive belt')
H Handbrake 61, 142 Headlights (see 'Lights') adjustment 62 bulb replacement 37 Headrest 153 Heater 11 Hoses/pipes (see 'Pipes and hoses') HT leads 47 Hub front 104 rear 134
I Identification numbers 27 Idle speed adjustment (see 'Carburettor') Ignition system 46 to 51, 107 to 109 coil 47,48 safety 7 Ignition timing 19, 48 to 50 Instruments 110 panel lights 10 Intercooler 123, 124
J Jacking safety 5 wheelchange 15, 16 Jump leads (Jump starting) 16
L Lambda sensor ... 54, 55, 121, 122 Lights fog lights 13, 38 hazard warning 13 headlights 13,37 indicators 13, 37 interior 15, 39, 40 MoT 28 number plate 39 rear lights 38 reversing lights 39 sidelights 13, 37 Locks and latches 9, 10, 62 Lubricants 154
m Manifold fixings 56 Mirrors 14, 150 Mixture adjustment (see 'Carburettor') Model years 17, 18 MoT, getting through 28 to 31
m Number plates (lights) . . 28, 39, 145
o Oil change disposal 7, 8 engine 41, 42 transmission 44, 45 safety 7 Oil filler cap 35 Oil filter 41 Oil level engine 34, 35 gearbox 44, 45 topping up 35
P-Pads, brake (see 'Brakes') Pipes and hoses brakes 62, 138, 141 hot air 121 radiator (cooling system) 43 Plastics, safety 7 Production changes 17, 18
ft Radiator .* 106 Raising the car 5 Repair data 20 Road test, brakes and steering ... 63 Rotor arm 47, 49
s Safety First! 5 to 8 Seats 14, 151 to 153 mountings 62 Seat belts mountings 62 pretensioners 151, 152 Servicing Your Car 32 to 63 Shock absorbers 57,131 Shoes, brake (see 'Brakes') Sidelights (see 'Lights') Spark plugs 47, 154 Specifications (see 'Facts & Figures') Speedometer cable 110 Starter motor 110 Steering 57, 58, 127 to 131 lower wishbone 127, 130 power steering 58, 130 rack gaiters 58, 133 Steering wheel 128 Sun roof 151 Suspension ... 57 to 59, 127 to 134 front 57, 127, 131 rear 58, 59, 128, 133 strut 57, 131
T Tailgate wiper (see 'Windscreen wipers') Tailgate and strut 144 Thermostat 107 Throttle cable and pedal (see 'Accelerator, linkage and cables') Timing belt 43 Diesel 85 to 87 Petrol 65, 66 Torque wrench settings ... 23 to 27 Track control arm (inner bushes). . 57 Track rod ends 57, 58, 128 Transmission. . 80 to 83, 95, 98 to 106 removal 80 to 82 separation and reconnection (Diesel). . 95 separation and reconnection (Petrol). . 83 Transmission fluid 44, 45 Turbocharger replacement 122 to 124 Tyre checking 30, 36 pressures 18,36
u Universal joints 28, 58 Using your car 9 to 16
¥ Vacuum unit, distributor 48 Valve clearances 42, 43, 79, 93 Valve grinding 72 Vehicle Identification Numbers (VIN) 27
w Washer fluid reservoir 36 Water pump 107 Wheel alignment 28 Wheel bearings 57, 58 Wheel bolts 59 Wheel changing 15,16 Wheel cylinder 137 Wheel sizes 18 Windscreen, damage 29,162 Window regulator 147 to 149 Windscreen washers 112 Windscreen wipers 13,111 Wiring diagrams 155 to 174
Gaiters 30, 57
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