1)柱塞与柱塞套磨损。在使用过程中，燃油中的机械杂质进人喷油泵腔，形成磨料磨损，加上燃油的腐蚀作用，使柱塞与套筒间隙增大，压行程时引起燃油从柱塞套筒间隙处泄漏，使供油不足或不供油。
2)出油阀磨损。燃油中的机械杂质，在高速流动冲刷下造成出油阀、减压带或阀座的磨损而密封不严，使高压油管内残余压力不足。当喷油泵再次泵油时，有部分燃油补充高压油管内的压力不足，因而向气缸内所供燃油不足，时不供油。
3)出油阀弹簧失效。出油阀弹簧使出油阀与阀座紧密贴合。密封可靠，防高压油管的燃油倒流。若出油阀弹簧疲劳而弹力减小，使出油阀的单向截流作用变差，出现倒流油现象，其结果和原因与2)中所述相同。
4)低压油路压力不足。喷油泵低压油路有一定油压，才能保证燃油迅速进入泵腔，确保喷油泵泵油需要用油。若输油泵的泵油能力降低或不泵油，或柴油滤清器、油路堵塞，或燃油系统内进人空气等，就会使喷油泵低压油路的油压力减小，甚至不能产生压力，当喷油泵工作时，燃油不能迅速进入喷油泵腔，造成喷油不泵油或泵油不足。
5)油量调节拉杆或调速器被卡滞在供油量减小位置，或处在不供油位置时，造成喷油柱塞有效行程减小或为零，使喷油泵供油不足或不供油。
6)发动机的加速调节机构因卡滞或调整不当，作用在调速弹簧上的压力减小，喷油泵的供油量就受到了调速器，即供油不足。
7)柱塞弹簧失效。若柱塞弹簧因长期被压缩而疲劳或折断，就不能保证柱塞及时回位和滚轮体与凸轮的良好接触。就使柱塞行程变小，导致供油不足或不供油。
8)凸轮、滚轮体磨损或调整不当，会使柱塞升程减小，引起供油不足;凸轮轴轴承损坏，使凸轮轴径向偏移(向下)，造成泵油压力下降，从而导致供油量减少。
9)柱搴副卡死多因柱塞与套筒配合间隙过小，或柴油黏度过大;滚轮体调整不当(调整过高)，柱塞升程时，其顶端会与出油座顶撞而变粗，被卡死在柱塞套筒内而不供油。
10)柴油选择不当。如冬季选凝点较高的柴油时，因柴油流动性差，燃油不能迅速流入泵腔，造成供油量减少。若柴油不流，便会造成供油中断;如夏季选用凝的柴油时，因其黏度小，易泄漏，也会造成供油不足
0 433 175 516 DSLA124P5516 0 445 120 238, 0445120238, 0 445120238 Bosch Auto Fuel Pump Injector F00RJ02130 Bosch Injection Valve Assy 2004-2009 Dodge Ram 2500; 2004-2009 Dodge Ram 3500
0 433 175 449 DSLA128P1510 0 445 120 059 F00RJ02130 Bosch valve KOMATSU 200-8 Cummins QSB6, 7 Cummins and CDC Komatsu PC200-8QSB
0 433 175 510 DSLA128P5510 0 445 120 231 F00RJ02130 Bosch Valve
0 433 175 203 DSLA136P804 0 445 120 002 F00RJ00005 Control Vavle Citroen Jumper HDi, FIAT Ducato JTD, Iveco Cityclass, Daily and Scudato Peugeot Boxer HDI, Renault Mascott 110, 130, 140 and 150
0 433 175 337 DSLA140P1142 0 445 110 110, 0986435080 F00VC01034 NISSAN INTERSTAR 1.9 TURBO DCI 80 2002 - 2010, RENAULT ESPACE IV 1.9 DCI 2002 - 2006, LAGUNA II GRANDTOUR 1.9 DCI 2001 - 2007, LAGUNA II 1.9 DCI 2001 - 2007, MASTER 1.9 DCI 80 2003 - 2006, MEGANE 1.9 DCI 1999 - 2002, MEGANE CLASSIC 1.9 DCI 1999 - 2003, MEGANE COUPE 1.9 DCI 1999 - 2002, MEGANE GRANDTOUR 1.9 DCI 1999 - 2003, MEGANE II 1.9 DCI 2003 - 2009, MEGANE II CABRIO 1.9 DCI 2003 - 2010, MEGANE II GRANDTOUR 1.9 DCI 2003 - 2009, MEGANE II HATCHBACK 1.9 DCI 2002 - 2008, SCENIC 1.9 DCI/RX4 1999 - 2003, SCENIC II 1.9 DCI 2003 – 2009
0 433 175 481 DSLA140P1723 0 445 120 123, 0 445 120 022, 4 937 065, 4937065 Cr Injector F00RJ02130 Bosch Oil Engine Valve CUMMINS OEM 4937065, Cummins 3, 9 110кВт 05/2006-, Cummins 5, 9 162кВт 05/2006-, DCEC (Dongfeng Cummins Engine)
0 433 175 230 DSLA140P862
0 433 175 431 DSLA142P1474 0 445 110 240 F00VC01003 Bosch Injection Valve Assy Citroen C5, Jumper, Jumpy and Xsara, FIAT Scudo JTD, Peugeot 206, 306, 307, 406, 607, Boxer, Expert and Partner
0 433 175 196 DSLA142P795 0 445 110 008, 0 445 110 044, 0986435003 Bosch Auto Fuel Pump Injector F00VC01003 Bosch Injection Valve Assy
0 433 175 309 DSLA143P1058 0 445 120 018, 0 445 120 113 Bosch Auto Fuel Pump Injector F00RJ00339 Bosch Injection Valve Assy
0 433 175 450 DSLA143P1523 0 445 120 060, 0 445 120 250, 3977080, 4983267, 5263321, 1703934 Bosch Auto Fuel Pump Injector F00RJ02130 Bosch Injection Valve Assy Cummin LSBe DAF CF65 Series, LF45 Series, LF55 Series DONGFENG ISDE6 415KW
0 433 175 501 DSLA143P5501 0 455 120 212 F00RJ02130 Bosch Injection Valve Assy F250, 4BTAA, EEA
0 433 175 519 DSLA143P5519 0 445 120 255, 0445 120 255, 0445120255 5263318 Bosch Auto Fuel Pump Injector
0 433 175 386 DSLA144P1295 0 445 110 119 F00VC01046 菲亚特
0 433 175 250 DSLA144P890 0 445 110 036 F00VC01052 标致
0 433 175 308 DSLA146P1055 0 445 110 075/0 445 110 135 F00VC01303 标致
0 433 175 413 DSLA146P1398 0 141 703 002
0 433 175 414 DSLA146P1409 0 414 703 003
0 433 175 304 DSLA150P1043 0 414 720 039 / 0 414 720 028 / 0 414 720 021 F00RJ00218
0 433 175 323 DSLA150P1103 0 455 133 791 Ford 2.4TDI, FT Ford
DSLA150P1197
0 433 175 367 DSLA150P1247 0 414 720 213 1.9TDI
0 433 175 368 DSLA150P1248 0 414 720 231 1.9TDI
0 433 175 447 DSLA150P1499
0 433 175 189 DSLA150P783 VW
0 433 175 199 DSLA150P800 0 414 720 037 1.9TDI
0 433 175 379 DSLA152P1287 0 414 720 404 1.20TDI
DSLA156P1079
G389
G3P004 23670-0R090/23670-29125/23670-26060
G3P005 23670-0r100/23670-0r101/23670-29116/23670-29115/23670-26071/23670-26070
293400-0330 G3S33 23670-0L110, 23670-09380, 23670-30420, 23670-39425 Toyota Hilux 2KD-FTV
G3S46 16600-5X00#/16600-LC10A/295050-090#
G3S6 23670-0L090, 23670-30400 Toyota Dyna/Hiace/Hilux 2KD-FTV
L023PBC BEBE2A01001 TD5 LAND ROVER
L087PRD
L096PBD EJBR00001Z 9308-618C Ford Mondeo 2.0 TDCI
L097PBD R02801D, R01901Z, R03601D, R02301Z, 33801-4X500 Diesel Fuel Pump Injector 9308-621C, 9308z621C Delphi Common Rail Control Valve KIA, Terracan 4x4 2.9L CRDi SUV (150bhp), Carnival 2.9L CRDI MPV (148bhp), Sedona 2.9L CRDi MPV (144bhp)
L120PRD
L121PRD
L135PBD 9308-621C, 9308z621C Delphi Fuel Valve
L136PBD EJBR00403Z 9308-618C 福特 起亚
L137PBD
L138PRD R00504Z, 4S7Q9K546BD, RM4S7Q9K546BD, 02CS27643 Diesel Injector 9308-621C, 9308z621C Delphi Fuel Valve FORD, JAGUAR, Mondeo 16v Mk IV 2.0L TDCi (115bhp), X Type Sport 2.0L D Estate (130bhp)
L163PBD EJBR03301D Delphi Common Rail Fuel Injector 9308-622B, 9308 622B, 9308z622B Delphi Diesel Fuel Valve JMC, Transit 2.8L Van (114bhp), 4JB1TCI Euro 3
L194PBC BEBE4D08003 BEBE4D24103 BEBE4D16003 BEBE4D2400
L210PBC Delphi Common Rail Fuel Injector
L211PBC Delphi Common Rail Fuel Injector
L215PBC Delphi Common Rail Fuel Injector
L216PBC Delphi Common Rail Fuel Injector VOLVO
