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1.4.3 Sequential injection. 1.4.4 Cylinder ... Manifold injection is a mixture formation system for internal ... is a batch-fire system, while CSFI (from 1996 ...
Direct injection means that the fuel is injected into the main combustion chamber of each cylinder. [3] The air and fuel are mixed only inside the combustion chamber. Therefore, only air is sucked into the engine during the intake stroke. The injection scheme is always intermittent (either sequential or cylinder-individual).
Unlike the 3800, however, it used a batch-fire injection system rather than sequential injection, as evidenced by the lack of a cam position sensor. It also did not have a balance shaft. Power output was 160 hp (119 kW) at 5,200 rpm and 185 lb⋅ft (251 N⋅m) at 2,000 rpm with a 5,500 rpm redline.
The block was fitted with revised, taller lifter bosses to accept roller lifters, and a steel camshaft in 1985, and electronic sequential fuel injection was introduced in 1986. While sequential injection was used on the Mustang beginning in 1986, many other vehicles, including trucks, continued to use a batch-fire fuel injection system.
Mechanical fuel injection, 'K' stands for German: "Kontinuierlich", meaning continuous.Commonly called 'Continuous Injection System (CIS) in the USA. K-Jetronic is different from pulsed injection systems in that the fuel flows continuously from all injectors, while the fuel pump pressurises the fuel up to approximately 5 bar (73.5 psi).
1.9 Introduced in mid-1994, version 1.9 of the system uses a redesigned mechanism for idle air control and supports multipoint injection. 2J: Supports sequential injection (with a fallback to batch-fired injectors in the event of a cam position sensor failure.) Also supports variable valve timing control in the form of Rover VVC.
The injection system was purely mechanical, using a timed pumping cylinder and a non-return valve. On its downward stroke it compresses the rich mixture to about 70 psi at which time the rising pressure raises a spring loaded poppet valve off its seat and the charge is squirted into the cylinder.
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