Hi All,
I'm a working man relying on his van to stay in business - but of course it's developed a horrible electrical fault that needs more expertise than I can muster (I can do minor stuff ok). Vehicle forums have got me nowhere, so now I'm hoping you guys will be able to help:
I have a 55 plate Toyota Hiace 280GS with the 2.5 D-4-D engine. The van is low mileage (under 60k) and in excellent condition and I was hoping for a long life from it. However, on the day it passed its MOT and after a routine service, it failed to fire up. The engine turns over but the injectors are not firing. No warning lights show. So far the following has been done:
I'm a working man relying on his van to stay in business - but of course it's developed a horrible electrical fault that needs more expertise than I can muster (I can do minor stuff ok). Vehicle forums have got me nowhere, so now I'm hoping you guys will be able to help:
I have a 55 plate Toyota Hiace 280GS with the 2.5 D-4-D engine. The van is low mileage (under 60k) and in excellent condition and I was hoping for a long life from it. However, on the day it passed its MOT and after a routine service, it failed to fire up. The engine turns over but the injectors are not firing. No warning lights show. So far the following has been done:
- Earths checked and cleaned. Visual check made of all accessible contacts.
- Fuel pressure checked in common rail and all ok.
- Initial diagnostics suggested a fault or short in the EDU circuit.
- ECU and EDU removed checked and passed ok by a specialist( they were even rigged to injectors which fired happily).
- A check by an auto electrician showed a voltage spike in the ABS circuit. Removal of the relay saw the van fire and run, but only for a short time (presumably until the ECU had remapped the system?) The ABS was removed, checked and found fault free.
- Further diagnostics suggested a fault in the canbus, with the resistance at one end of the canbus circuit reading 120 ohms and 0 at the other (it should be 60 ohms - two 120 ohm resistors in parallel reducing down to 60 ohms).