P0263 Toyota Cylinder 1 Contribution Balance

P0263 Toyota Cylinder 1 Contribution Balance

Possible causes
– Dirty Fuel Injector 1
– Faulty Fuel Injector 1
– Plugged Fuel Injector 1
– Fuel injector 1 harness is open or shorted
– Fuel injector 1 circuit poor electrical connection
Tech description
Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.
Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
– Engine Misfire
– Engine Run Rough
– Low MPG
P0263 Toyota Description

Code P0263 Toyota is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 1 was less than a calibrated amount. During normal conditions the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

Toyota Vehicle:Toyota Prius,Toyota Celica,Toyota Supra,Toyota Carina,Toyota Camry,Toyota MR2,Toyota Aygo,Toyota 4Runner,Toyota Avalon,Toyota Camry,Toyota Corolla,Toyota FJ Cruiser,Toyota Highlander,Toyota Land Cruiser,Toyota Matrix,Toyota Prius,Toyota RAV4,Toyota Sequoia,Toyota Sienna,Toyota Solara,Toyota Tacoma,Toyota Tundra,Toyota Yaris,

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