The real meaning of the engine U1048 Code is manufacturer’s meaning of your car. Do not use the automobile dictionary meaning of the code what may bring more new problems. The general meaning of the code is available online. The real meaning of the code depends on the manufacturer of your car. Do not use different meanings of different car manufacturer. The manufacturer set the meaning of the code related with your car and car model. The general meaning of the code has no any link with the car model or brand. The automobile meaning of the code is available online and it is U for Network Code Problem is climate control system, lighting, airbags, etc. 1 for MFG – Manufacturer Specific. 0 for Fuel And Air Metering. 4 for BBV Sensor Circuit Low Voltage and 8 for PCM Stack Overrun.
About the engine U1048 code, it would maybe be valuable to sensibly check the cable harness near the intake various bracket. This is done the most simply from below the automobile in the area near the oil filter. Though fuel economy was amplified, acceleration was extremely cooperated, and the loss of engine vacuum led to a dangerous loss of braking promotion when the engine U1048 code system was in 4 cylinder mode.