#1
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Check engine
Has anyone got any idea's. Car (V reg classic WRX) been parked up for some time. when started car up (battery flat) check engine light flashing. Have removed/re-set rocker cover gasket to both heads; removed/replaced dump valve; top mount intercooler; left battery off for good couple of weeks and re-charged, but check engine light still flashing. Any ideas????????????????????????????????????????????? ?????????????
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#2
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Count the flashes : Slow followed by fast
i.e 3 slow followed by 2 fat = Code 32 Oxygen Sensor This is a list of codes : 11 Crankshaft position sensor 12 Starter switch 13 Camshaft position sensor 21 Engine coolant temperature sensor 22 Knock sensor 23 Mass air flow sensor 24 Idle air control solenoid 31 Throttle position sensor 32 Oxygen sensor 33 Vehicle speed sensor 2 35 Purge control solenoid valve 42 Idle switch 44 Wastegate control solenoid valve 45 Pressure sensor –Pressure exchange solenoid valve 51 Neutral position switch |
#3
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Correct me if i'm wrong... but the Check Engine Light (CEL) shouldn't flash unless in test mode? If there were to be something a miss it would stay constantly illuminated.
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#4
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Normally only flashes once you plug the diagnostic plugs together.
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#5
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Quote:
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#6
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I gathered the info and posted this on the P1WOC which may help:
If your CEL is constantly illuminated (CEL – Check Engine Light), you can do a do a CEL check to obtain the fault code. To do this, you need to locate the 2 green ‘test mode’ connectors under the steering column. Alternatively if there is no CEL illuminated, fault codes can still be logged on the ECU. These can be read using the black 'read memory' connectors. If your CEL is constantly illuminated: find the green connectors and connect them, then turn the ignition on (do not start the car). You should now here lots of clicking and fans spinning from the engine bay. Take a look at the CEL and you should notice that the CEL will flash in a sequence. This flashing sequence translates a fault code. If you get a steady flash every 0.5 seconds there is no fault code present. If there is no CEL illuminated: find the black connectors and connect them, then turn the ignition on (do not start the car). You will not hear any clicking or fans spinning from the engine bay. Take a look at the CEL, if it remains on or if you get a steady flash every 0.5 seconds there is no fault code present. If it is flashing, this flashing sequence translates a fault code. Once the fault code has been rectified, the ECU should be reset simply by disconnecting the battery for 30min, then starting the car and letting it idle untill the fans come on. This is how you work it out... A long flash equals 10, and a short flash equals 1. Total them up to get your error code. You should also be aware that if more than 1 error code is present, the CEL pulse sequence will change. The change in sequence is easy to identify. You are also able to read previous fault codes that the ECU has stored. This is helpful if you you’re CEL flashed up and is not constantly illuminated and if you just want to be inquisitive. To do this, you need to locate the 2 black ‘read memory’ connectors (pictured above) under the steering column. Join the connectors together and switch the ignition on, then use the ‘pulse’ method as above to obtain the fault codes the ECU has stored. As with the CEL pulse in test mode, more than 1 error code may be present, causing the CEL pulse sequence to change. The change in sequence is easy to identify. These are the Subaru trouble codes: Subaru Code Subaru Trouble Code Description 1 Engine Speed Signal Circuit 11 Crankshaft Position Sensor 12 Starter Signal 13 Camshaft Position Sensor 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 42 Idle Switch 43 Accelerator Pedal Switch 44 Turbocharging Pressure Control Signal 45 Pressure Sensor 48 Lean Burn System 49 CO Resistor 51 Neutral Position Switch 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 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
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