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However, uncooled EGR designs do exist; these are often referred to as hot-gas recirculation (HGR). Cooled EGR components are exposed to repeated, rapid changes in temperatures, which can cause coolant leak and catastrophic engine failure. [9] [10] Unlike spark-ignition engines, diesel engines are not limited by the need for a contiguous ...
OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool.. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections.
It features a Bosch Motronic 2.8.1 engine management system (Omega), with later examples featuring M2.8.3 (Calibra 1994, Vectra 1995) and a compression ratio of 10.8:1. For 1994, in order to meet more stringent emissions requirements, a secondary air injection system and an EGR valve were added to the C25XE and it became the X25XE.
For example, the 1994–1995 model year Corvettes have one post-catalyst oxygen sensor (although they have two catalytic converters), and have a subset of the OBD-II codes implemented. [20] This hybrid system was present on GM B-body cars (the Chevrolet Caprice, Impala, and Buick Roadmaster) for 1994–1995model years, H-body cars for 1994 ...
The early EGR coolers (2003-2004.5) were also susceptible to premature failure. High Pressure Oil System – With the use of split-shot HEUI fuel injectors, high-pressure oil is required to pressurize the fuel injectors. The main high-pressure oil (HPO) system components are the high-pressure oil pump (HPOP), HPO manifolds, stand pipes, and ...
Between dinner parties, cookie exchanges and festive cocktails, most people report eating and drinking more than usual during the holidays, gaining on average 1 to 2 pounds of body weight. Now ...
It’s like facing criticism for being the least impactful Nobel Prize winner. Or the bottom of the class at Harvard. Or the slowest runner at the Olympics.
Upon its completion, the compensation fund established by GM had offered compensation for 124 deaths, nearly 10 times more than the 13 deaths GM executives reported in April 2014. [ 3 ] [ 22 ] However, the true number of deaths resulting from the ignition switch is likely higher, as GM's compensation fund rejected more than 90% of claims and it ...