MAP Manifold Absolute Fuel Pressure Sensor / Bosch Rail Pressure Sensor 5WK96841

ERIKC 2045431 Auto parts MAP Manifold Absolute Pressure Sensor bosch 5WK96841 80018383​

Injector FAQ

The density of fuel oil burned in a diesel engine is important because some fuels of different densities are not compatible and formation of heavy sludges can occur in tanks.

FAQ: Restrictions
ERIKC Answer:A restriction of only 8% to 10% in a single fuel injector can lean out the fuel mixture and cause a misfire. When this occurs, unburned oxygen enters the exhaust and makes the O2 sensor read lean. On older multiport systems that fire the injectors simultaneously, the computer compensates by increasing the “on” time of all the injectors, which can create an overly rich fuel condition in the other cylinders.
Direct fuel injectors are more sensitive to restrictions because of the precise amount of fuel they inject into the combustion chamber.

FAQ: Turbo Troubles
ERIKC Answer:In turbocharged engines, dirty injectors can have a dangerous leaning effect that may lead to engine-damaging detonation. When the engine is under boost and at a higher rpm, it needs all the fuel the injectors can deliver. If the injectors are dirty and can’t keep up with the engine’s demands, the fuel mixture will lean out, causing detonation to occur. The leaning out may cause higher than normal exhaust temperatures and turbo failure.

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