What Causes the Delayed Ignition with Abnormal Noise in Camry?

[LeCharlie]

Here are the specific reasons for delayed ignition with abnormal noise in Camry: 1. Carbon deposits or component contamination: Throttle carbon buildup can affect the perception of throttle and air intake, causing delayed or incorrect signals from the computer, which may prevent the vehicle from starting; the fuel injector is prone to accumulating sticky substances that can block normal fuel injection, leading to poor gasoline atomization, thus causing delayed ignition and difficulty in starting the vehicle. 2. Inappropriate oil viscosity: For example, in very low temperatures, high oil viscosity can slow down oil circulation, causing mechanical dry friction, making it difficult to start the car and resulting in delayed ignition with abnormal noise.