5lider

hi guys last week i noticed my cv boots were torn on the passanger side so i didnt drive it much that week only on friday to a mates house to carry out the work we started friday morning and after a few problems finshed sun night after leaving the car at his house over the weekend we went to start it on sun night and it was cranking but no spark i checked battery and batt was white white means recharge so i got his batt charger still no luck went to halfords to replace it under guarantee and still nothing even got another coil pack and has had no effect, the alarm seems to be working as it arms and dissarms and the immobliser seems to be ok as it works fine. power is getting to the coil pack as we have checked the meter but nothing coming out the other end thanks for ya help need to get this sorted asap its a 1997 impreza import

dan2926

iTrader: (4)

Sound like an immobiliser fault, had this on my uk.
Check if you are getting fuel (Do you hear the pump priming when you turn the key?, Are you getting smoke from exhaust when trying to start).
Common fault with the Sigma alarm not sure which alarm/immobiliser you have though, They use fuel pump cut/starter motor cut.
Mine was a fault in the fuel pump/immobiliser wiring.
Fob all worked fine at the time aswell.
If the fuel pump is not priming i would check fuses, pump etc before the above.

I have also heard of wires coming loose on the fuel pump due to the location (Under rear seat drivers side).

Hope you get it sorted out.

5lider

Hi mate yea the fuel pump is working fine it primes the alarm is a sterling one gonna try and get a secondhand ignition module and try that

5lider

Got another ignition module and crank sensor still the same and no spark immobiliser seems to be working As it deactivates and brings power to the dash when I turn key and press the fob fuel pump is ok as it's priming

dan2926

iTrader: (4)

Hmm ok,

Thats a strange one and you checked the most probable causes, So you are getting power to the coil pack and none to the actual cylinders, have you tried checking for fault codes? See Below

If you look under the dash on the drivers side you should find a pair of BLACK (1 pin) connectors and a pair of GREEN (2 pin) connectors situated very close together.

The black (1 pin) connectors are for reading the ECU Fault codes, the green (2 pin) connectors are for a system self test function that runs the rad fans, fuel pump and the wastegate solenoid valve.

For reading the ECU Fault Codes we are only interested in the BLACK (1 pin) connectors, with the ignition 'OFF' connect the BLACK (1 pin) connectors together and turn the ignition to the 'ON' position (Dash lights on engine off), now look at the 'Check Engine Light' it should now be flashing.

How to read the flashing Check Engine Light

A steady even spaced flash = no stored faults.

A slow flash = x10

A fast flash =x1

So for example if you see 2 slow flashes and 6 fast flashes your fault code is '26', the function can show you multiple codes too so it is handy to have a notepad and pen handy to write the codes down as you read them, if there are multiple codes they will be shown in a looped sequence with a pause between codes ie (2 slow - 6 fast - PAUSE - 3 slow 4 fast - PAUSE) once the last code in the sequence has been flashed the sequence repeats so dont panic if you did not catch the code the first time round. It is worth watching the sequence for a few loops to ensure you have taken down the correct codes.

Once you have finnished reading the Fault Codes, simply turn off the ignition and disconnect the BLACK (1 pin) connectors.

What the ECU Fault Codes mean.

Scoobypedia Link.....List of Subaru Fault Codes (Scoobypedia)

Once you are happy with the codes you have read, compare them to the list below to see what the code/s mean.

1 Engine Speed Signal Circuit
11 Crankshaft Position Sensor
12 Starter Signal
13 Camshaft Position Sensor
14 Fuel Injector No. 1 (Legacy, Impreza, Justy, SVX)
15 Fuel Injector No. 2 (Legacy, Impreza, Justy, SVX)
16 Fuel Injector No. 3 (Legacy, Impreza, Justy, SVX)
17 Fuel Injector No. 4 (Legacy, Impreza, SVX)
18 Fuel Injector No. 5 (SVX)
19 Fuel Injector No. 6 (SVX)
21 Engine Coolant Temperature Sensor
22 Knock Sensor
23 Mass Air Flow Sensor Circuit
24 Idle Control System Malfunction
24 ISC Valve (Stick)
24 Open/Short in ISC Valve Circuit
26 Intake Air Temperature Sensor
27 ATF Temperature Sensor Circuit
28 Knock Sensor #2
29 Crankshaft Position Sensor 2
31 Throttle Position Sensor Circuit
32 A/F Sensor #1 System
32 A/F Sensor #2 System
32 Oxygen Sensor
33 Vehicle Speed Sensor
35 CPC System
36 Turbine Speed Signal
37 Rear O2 Sensor Circuit / A/F Sensor Circuit Malfunction
38 Torque Control Signal #1
38 Torque Control Signal #2
38 Torque Control Signal System
38 Torque Permission Signal
39 Traction Control System
41 Air/Fuel Adaptive Control
42 Idle Switch
43 Accelerator Pedal Switch
44 Turbocharging Pressure Control Signal
45 Pressure Sensor
46 Neutral or Parking Switch or Circuit
47 Fuel Injector
48 Lean Burn System
49 CO Resistor
51 Neutral Position Switch
52 Parking Brake Switch (Exc. Justy)
53 Antenna
53 Anti-Quick Operation Mode
53 Communication Error (Time Over)
53 EGI Control Module EEPROM
53 IMM Circuit Failure (Except Antenna Circuit)
53 IMM Control Module EEPROM
53 Key Communication Failure
53 Reference Code Incompatibility
53 Use of Unregistered Key
54 Air Intake System
55 EGR Valve Lift Sensor
56 EGR System
57 Canister Control System
58 Air Control System
61 Air Suction Control Solenoid Valve
62 Exhaust Manifold Valve Negative Pressure Control Solenoid
64 Relief Valve Control Solenoid Valve 1
64 Relief Valve Control Solenoid Valve 2
65 Differential Pressure Sensor
66 Twin Turbocharger System(H)
66 Twin Turbocharger System(S)
66 Twin Turbocharger System(T)
66 Two Stage Twin Turbocharger System
67 Exhaust Manifold Valve Positive Pressure Control Solenoid
68 Turbocharging Pressure Control Output Signal #2
71 Shift Solenoid Valve
72 Shift Solenoid #2 Circuit
73 Low Clutch Timing Solenoid Circuit
74 Brake Clutch Timing Solenoid Circuit Malfunction
75 Line Pressure Duty Solenoid Circuit
76 Brake Clutch Pressure Duty Solenoid Circuit Malfunction
77 Lock-Up Duty Solenoid Circuit
78 Tiptronic Solenoid System
79 Transfer Clutch Duty Solenoid Circuit
81 Torque Up Control Valve
85 Charger System Circuit Malfunction
86 CAN (Communication System)
87 Variable Induction Solenoid Valve Circuit Malfunction
88 Fuel Pump Circuit Malfunction
89 VVT Systems (L)
89 VVT Systems ®
91 TCS Relief Valve
92 Electrical Generation Control Signal Circuit Malfunction
93 Vehicle Speed Sensor #1 Circuit
94 Lateral G Sensor Signal Circuit Malfunction

Once you have dealt with the fault you can reset your stored ECU faults be disconnecting the battery for an hour, please only do this is you are 100% certain that you know codes for your stereo etc.

5lider

Hello mate no there are no stored codes. today I did get a spark on the 2 bottom coils and then 5mins later nothing even swoped over coil pack but not a thing This time. then swoped back to the one that gave 2 sparks but this time nothing so atm we have come to a brick wall

gojonnyjo

iTrader: (1)

check fuses, wiring connections, ecu wiring, if pumps priming then not immob, check earth straps to engine, battery etc. Check round the areas that u were working on, jacks on, axle stands on, when working on the cv joints, u may have moved a wire, wiring loom, blew a fuse, just an idea, seen it happen before to me.


if you know the coil packs are 100%, could be an earthing prob

5lider

Hi guys am now getting 2 sparks from the 2 lower coilpack ends nearest to the radiator but not the top 2. What electrically could cause the timing to be out just for info checked the crank sensor that's working fine cam sensor is working fine Changed the coilpack changed the ignition module but still at a dead end again also checked wiring continuity and all seems fine

5lider

update: found that i had 2 12v feeds on the coilpack plug when i shouldnt. so inspected the white plug behind battery and it was really corroded, bought a new wiring loom and thats sorted the voltage issuse but now i think the ecu has been damaged by the 12v line engine still wont start. checked the voltage on the ignition module and 1 pin is going high in voltage when i crank the engine and pin 2 is very low about 0.3 so the ecu isnt sending the correct signal could this mean the ecu has got damaged??