Part 2 KE Jetronik crank no start - the beast is running again W126 W124
Автор: Stray Benzes
Загружено: 2025-03-31
Просмотров: 1724
Crank no start troubleshooting on KE Jetronic 4, 6, and 8 cylinder cars
1. Is the OVP relay ok? Fuse(s) blown?
2. Fuel pump relay ok? Check by jumping terminal 7+8. Listen for pumps to come on. Are both running?
3. Crank shaft position sensor CPS: 680-1200Ohm
4. Fuel pressure 6-6.4Bar, delta 0.4Bar, screw in rich; out: lean
5. Fuel filter plugged?
6. Fuel filter in distributor plugged?
7. Return fuel line plugged at tank?
8. Fuel pressure regulator/accumulator busted? Typically a hot start problem.
9. Mass flow sensor potentiometer: 0.7V at idle position
10. Mass flow plate position: at lip in housing and 1-3mm play until it hits the distributor pin, little over a mm works great. Measure with fuel pressure on. That is for a low mileage car though. No flow – no gas at any of the ports. Disconnect fuel lines and push on mass flow plate. Is fuel coming out evenly? Distributor nut 0.5mm below surface not 1mm. Main plunger needs to move freely.
11. Idle control valve in good shape?
12. Check vac gauge in cluster when cranking? Does the needle even move?
13. Vac leaks?
14. Injectors: Plugged? Worn?
15. Ignition coil: does it have power? What is the primary and secondary coil resistance?
16. Spark at main cable?
17. Spark at cylinder?
18. Spark plugs
19. EZL?
20. O2 sensor?
21. ECU bad?
Доступные форматы для скачивания:
Скачать видео mp4
-
Информация по загрузке:
