I have a 91 Subaru Legacy Sedan L 5-Speed EJ22 Engine 140k.. Full synthetic oil every 3k, always!
When I start my Legacy, It idles fine.. 1,300 rmp's. then drops down to 700 rpm's when it reaches operating temp. Which is normal. The check engine light blinks a few times when I first accelerate but never seems to blink after first acceleration. When I push in my clutch, coming to a stop, the engine idles at 300 rpm's and jumps right back up to 700 after a few seconds of engine shaking. Its never died on me the few hundred miles I've driven it like this.. When stopped, sometimes it will drop back to 300 but jump right back to 700. Sometimes.. for a few minutes, the engine runs perfect, doesn't drop rmp's while stopping or stopped.. but will sure enough start right up again.
I cleaned the mass air flow, and sprayed carb cleaner multiple times down the iac valve intake tube.. not much of a difference.
Also been getting bad gas mileage, and fuel smells very rich
The CEL codes I got were:
16- Faulty #3 Injector
35- Faulty Purge valve
42- Abnormal idle switch voltage
49- Incorrect Mass air flow sensor
-These are all weird since I just replaced, the purge valve with a new part over 300 miles ago..
-All my injectors are in the right resistance range 11-12k ohms
-The idle switch did test faulty, but my car has been runnin fine for thousands of miles since I first tested it faulty. It could be the problem, but I'm doubting it. Its slightly low on resistance.
-And the MAF is deff the correct hitachi MAF sensor for the manual transmission. Its not throwing a faulty MAF code
I once put an automatic MAF on, only for a minute.. and the purge valve is new and shows the correct resistance, it seems as if they are old codes still in the ecu... but I've unpluged the battery many times for nights at a time.
Here's a list of the parts I have replaced, trying to fix this prob.
Ignition Wires
Ignition coil
Spark plugs
Fuel pump/strainer (because last time it was failing, sorta did the same thing but way worse.
Fuel Filter
oil change
When I start my Legacy, It idles fine.. 1,300 rmp's. then drops down to 700 rpm's when it reaches operating temp. Which is normal. The check engine light blinks a few times when I first accelerate but never seems to blink after first acceleration. When I push in my clutch, coming to a stop, the engine idles at 300 rpm's and jumps right back up to 700 after a few seconds of engine shaking. Its never died on me the few hundred miles I've driven it like this.. When stopped, sometimes it will drop back to 300 but jump right back to 700. Sometimes.. for a few minutes, the engine runs perfect, doesn't drop rmp's while stopping or stopped.. but will sure enough start right up again.
I cleaned the mass air flow, and sprayed carb cleaner multiple times down the iac valve intake tube.. not much of a difference.
Also been getting bad gas mileage, and fuel smells very rich
The CEL codes I got were:
16- Faulty #3 Injector
35- Faulty Purge valve
42- Abnormal idle switch voltage
49- Incorrect Mass air flow sensor
-These are all weird since I just replaced, the purge valve with a new part over 300 miles ago..
-All my injectors are in the right resistance range 11-12k ohms
-The idle switch did test faulty, but my car has been runnin fine for thousands of miles since I first tested it faulty. It could be the problem, but I'm doubting it. Its slightly low on resistance.
-And the MAF is deff the correct hitachi MAF sensor for the manual transmission. Its not throwing a faulty MAF code
I once put an automatic MAF on, only for a minute.. and the purge valve is new and shows the correct resistance, it seems as if they are old codes still in the ecu... but I've unpluged the battery many times for nights at a time.
Here's a list of the parts I have replaced, trying to fix this prob.
Ignition Wires
Ignition coil
Spark plugs
Fuel pump/strainer (because last time it was failing, sorta did the same thing but way worse.
Fuel Filter
oil change