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Ck Engine light on call runs rough dealer replaced seal on injectors replaced one injector car still runs well just like before

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  • Alasondro Linney
    Alasondro Linney Apr 17, 2015

    Car still runs rough just like before The dealer says there are now going to replace some kind of fuel valve on the injector but still going to charge me for the other stuff they did and put on does not seem fair especially since the car still runs rough will see if this fuel valve I think that's what they call it will do the trick feel like I'm trying to get taken to the cleaners

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  • 15 Answers

Check ur gas cap

Posted on Apr 17, 2015

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My timen belt light an airgag light remaining on also my engine knocking in my toyota 1kd hilux


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1998 ranger 2.5 manual enging miss


ck for leak at intake. if no leak pcm/ecm may be sending fire command to slow to # 1 . the fuel injector is always hot the ecm sends a ground to the injector. even new parts can be bad ck inj, with ohm meter resistance should be the same between each inj. im not sure of the specifications but they should read the same my jimmy specs are 1.9-2.1 any other reading is bad . no resistance or lower or higher readings my injector would be bad. 140 is good reading, timing can be off a little and still run but rough like a miss. a code wont set most misfires will set a dtc or flash the engine light to let you know damage to cat system is happening , to much fuel a system rich,to little a lean. a bad mass airflow meter can also cause a misfiring or rough idle ck with scanner if dirty clean with brake cleaner first before replacing . hope this helps some let me know how it goes.

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Po261, po267, po270, po273, po276 po279


P0261 Cylinder I Injector Circuit Low P0270 Cylinder 4 Injector Circuit Low P0273 Cylinder 5 Injector Circuit Low P0276 Cylinder 6 Injector Circuit Low P0279 Cylinder 7 Injector Circuit Low this will hold true for each code you listed SymptomsPossible sumptoms of OBD code P0279
- Engine Light ON (or Service Engine Soon Warning Light) - Engine Misfire - Engine Run Rough - Low MPG CausesPossible causes of OBD code P0279
- Fuel Injector #7 - Faulty or Corroded Fuel Injector #7 Connector - Plugged #7 Fuel Injector - Dirty #7 Fuel Injector Possible Solutions- Clean Fuel Injector #7 Connector - Clean Fuel Injector #7 - Replaced Fuel Injector

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Rough idleing after pressure wash engine and fuel injector clean


Hi,
I'm assuming you added fuel injector cleaner to your fuel tank rather than using a direct pressure cleaner through your fuel injectors.
When a solvent/cleaner product is added to your fuel tank, carbonaceous deposits (basically the dirt and gunk accumulated over years) are flushed through the fuel system. This can cause major problems if the contaminants manage to enter your fuel pump and make their way past the seals. This can and has damaged good fuel pumps. Downstream of the pump is the fuel filter - once deposits reach the fuel filter, they may block it and reduce fuel flow. The next major problem areas are the injectors themselves (rather sensitive to dirty fuel) and the engine.
Fuel injector cleaner is not a product I would recommend using. Many major car manufacturer's have recently issued memos to repairers blacklisting the use of cleaner products due to the downstream damage that may potentially be caused by them.
You should replace your fuel filter once you've finished using the tank of injector cleaner. This is most likely the problem (and could have probably used a replacement anyway). I hope this solves your problem. Otherwise you should check your fuel line pressure to ensure the pump is supplying what is required. Failing this, your injectors are probably the next most likely culprit. By this stage, things are starting to get expensive so lets hope the problem is just a blocked filter!
On a related side note; pressure cleaning an engine can sometimes cause water and soap to push down beside the spark plugs in a spark ignition engine. Sometimes this will cause the engine to run a little rough until the heat of combustion burns the contaminants away.
Hope this helps, Sherwin

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change your sparkplug wires that will salve yor problem

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