I got a 92 4runner 4cyl. Im tryin to find my fuel filter and how to get at it. The engine runs pretty good, except it runs a little rough at idle, like it stumbles a bit... ive done a tune up (plugs, wires, cap/rotor) Im thinking it must be bad injectors or a clogged fuel filter. Any suggestions? thx
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code po105 refers to manifold absolute pressure(MAP)sensor/barometric pressure (BHARO) sensor -circuit malfunction==causes--wiring MAP sensor--BARO sensor--ECM code p0171 refers to system to lean bank 1===causes intake/exhaust leak---AIR system MAF/MAP sensor fuel pressure /pump /injectors--HO2SW code p0325 refers to knock sensor(KS) 1 bank 1-circuit malfunction====causes--wiring ---poor connections---KS Check the exhaust flexible pipe at the manifold for cracks have a fuel pressure test done on the fuel manifold to determine either pump/ filter or pressure regulator. replace HO2S unit
I think the fuel has gone bad. it's cloging the injector ports. Try this first remove all fuel from the tank, replace the fuel filter. add 5 gallons of fuel and one bottle of fuel treatment. Run the engine for an hour
this will allow all of varnish from the bad fuel to disolve and clean the injectors. Don't be suprised
if this doesn't totally elimnate the problem chances are the plugs are fouled and need to be replaced also. Good luck
Hope this helps
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howdy, there are a few things on your 99 Accord that could cause that problem. usually all will eventually turn on the check engine light in time. make sure your check engine light is working when the key is first turned to run.
* a partially clogged catalytic converter. * faulty O2 Sensor (Bank 1 Sensor1). * low fuel pressure caused by a bad fuel pump, clogged fuel filter(in the tank) or a bad fuel pressure regulator on the injector rail. *bad ignition switch which can cause intermittent stalls.
now i don't know which engine you have, (i'm guessing a 4cyl.) there were two 2.3L- 4cyl. engines (F23A1 & F23A4) and a 3.0 V6. but if you also have a rough idle or low idle miss, a jumped timing belt can also causing loss of power.
if you know anyone with a scanner that reads the computer datastream, see what the O2 Sensor (Bank 1 Sensor1) is doing & look at fuel trim readings. Also check backpressure on the converter where that O2 Sensor is screwed in.
please let me know if i have helped, totally confused or scared you to death! Good Luck!
Spluttering and missing is usually one of two things Fuel or spark ?
Fuel problems will be traced to 1/ in line fuel filters .. 2/ tank run low on petrol throwing dirt and grit into tank filter ( if Fitted ) and blocked or restricted injectors a good fuel additve sometimes cures that problem , but replacement is a far better option .
Poor spark plugs breaking down under preassure oiled plugs due to overfilling or incorrect fuel mixtures .. poor or cracked distributor caps dirty or damaged rotor arms in said cap .. leaking HT leads damaged by rubbing and contact with hot engine causing sparks to fly to nearest earth disrupting the spark and ignition timing ... hope this helps Regards vortash
Early Toyota fuel injection use a cold start injector, it only works when the engine is cold. It is located in the intake manifold. for the mean time you can turn up your idle by turning a flat head screw in your intake manifold counter clock wise . It could be a coolant temp switch for the injector that has gone bad also.
If your fuel filter was considerably blocked with debris, sand of foreign material, then it is highly possible that your fuel pump would also require looking over (check/replace). In most instances, there is a strainer (a filter of sort) incorporated into the pump. Should you decide to do this, it may also help if you add "fuel injector cleaner" to your tank so as to clean the other fuel lines.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.