Tanying 2.8 Fuel Injector Short Circuit to Ground?
3 Answers
Tanying 2.8 fuel injector short circuit to ground may have the following causes: Injector clogging: Fuel injector clogging can severely affect vehicle performance. The clogging occurs due to carbon deposits from the engine accumulating on the injector or impurities in the fuel blocking the injector passage. Poor sealing: Poor sealing between the needle valve and needle valve body leads to poor fuel atomization or dripping. Inferior fuel quality can cause injector malfunction, resulting in severe carbon buildup in the cylinder. This accelerates wear on the cylinder liner and piston rings, causing unstable idle, increased fuel consumption, poor acceleration, difficult starting, and excessive emissions. In severe cases, it can completely block the fuel injector and damage the engine.
I've dealt with injector-to-ground short circuits several times at my workstation. Usually it's caused by damaged internal coils in the fuel injector, aging wires touching metal parts of the car body, or loose wiring connections grounding out. This condition triggers ECU error codes - your car might show the check engine light, experience severe engine shaking, poor acceleration with increased fuel consumption, and terrifying power fluctuations while driving. I recommend immediately checking trouble codes first. A simple multimeter can measure injector resistance - if it's close to zero ohms, that confirms a short circuit. Don't delay repairs, as this condition increases fuel system strain and can potentially burn out the ECU, multiplying repair costs several times over. For prevention, regularly inspect undercarriage wiring for wear and consider periodic fuel system cleaner treatments to reduce such issues.
My Tharu had a fuel injector short circuit issue before, which was super frustrating. At that time, the engine started shaking violently while driving, and pressing the accelerator felt like stepping on cotton with no power. The small yellow warning light on the dashboard kept flashing. I immediately drove to a nearby repair shop, where the technician used a diagnostic tool and found a fuel injector short circuit to ground, with an abnormally low resistance reading. In the end, a new fuel injector was installed to fix the problem, costing over 2,000 RMB. Looking back, it might have been caused by frequently driving on rough roads, where severe body vibrations loosened the wiring harness. I recommend all car owners to pay attention to similar symptoms—if the engine behaves abnormally, don’t push it. Stop immediately and seek professional inspection. Otherwise, a short circuit could destabilize fuel pressure, and stalling at high speed is extremely dangerous. This is a hard-earned lesson!
