Question about 1998 Subaru Legacy

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1998 subaru legacy check engine ligt

I was haveing problems with my fuel sending units and fixed the problem now my check engine light is back on and then off and then on it mostly comes on when im going up a hill and it bogs down and the light comes on i took the car to auto zone and they said it was the knock sensor but that does not sound right since the car loses its go when the engin light comes on i was thinking it might be the pressure sensor but not sure if anyone has some tips for me before i dump some mony into it i would realy appreciate it thanks

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  • minoune1 Jul 08, 2008

    Yes i do have the same problem.

    I have an obd2 (gadjet to read the codes when engine light appears). After refueling it hat happenned that the fuel meter went crazy. But after a few days it dissapears. the code was referring to the fuel level in the tank. However, the code for the knock sensor, even though i erase it reappears after about ten miles of running. I havnt replace it yet. But i supposse I am due!!!

    god lock

  • Anonymous Nov 17, 2008

    I have the same problem, The check engine light comes on after I run the car for about 15 minutes or so. The light goes off if I let the car sit for a little while(more than 24 hours). But I got the light checked (at autozone) and its says the problem is the knock sensor, the thing is the car runs fine until the light comes on then it seems like it is bogging down. I didn't think it was the knock sensor because I also had a cylinder 3 & 4 mis-fire code previously until I replaced the plugs. Anyway I ordered the sensor and will put it in this week, I will report back if that fixes the problem.

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I have the same problem the red check engine light :(

Posted on Aug 14, 2009

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Hi I have a Subaru Legacy RS Twin Turbo that isnt boosting at all.Can any one help please?Thanks Viki.

Posted on Jan 12, 2009

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You need to check the codes in the computer. Under the steering wheel on left hand side there are two plugs green in colour plug them together with the ignition off. Once together turn ignition but dont start motor the check engine light will flash in pattens which can be found at this web site: http://legacycentral.org/library/literature/codes.htm
There are instructions also on this site hope this helps

Posted on Jul 17, 2008

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The codes, you can read.
You can see two plugs, they are pars. One pars of colours green and the other black or white.
you sure the ignition off , Plugs green colours plug them together, attention, only the green and turn ignition but dont start motor. The check engine ligth will flash, the flash long are numbers 10, the flash short are numbers 1.
Example: the check engine ligth flash long 2 times, the code is 20
or flash long 3 times and flash short 4 times the code is 34.
What code it is ??
He comes some codes.
Subaru Code Subaru Trouble Code Description 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

You sure the finshed job unplugged the plug green
Bye
Italo Cabedo
Icabedo@gmail.com

Posted on Sep 30, 2008

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