I have been having intermittent issues . Basically the car would suddenly just die for no reason and read 0 fuel even if the tank was full, and the fuel pump that is supposed to run for 3 sec before starting would run constantly. Now it wont start at all.
http://www.boefabrication.com/downloads/TVS_Install_plus_EFI_pdf.pdf (Page 26 is where the EFI wiring starts and that is the EFI I am using)
We've carried out some checks on the car as follows:
No fuel being delivered to cylinders - injectors
No connection at OBD port
As the engine will tun and fuel pump runs, it's not immobiliser. We think it's the ECU. ***Replaced ECU did not fix the issue***
A new Lotus ECU (US spec) is £409 + vat. I can get one in for next week. Please can you let me know if you are ok for me to order up.
Anyone have any ideas?Hi Dave,
Our technician Sam has gone through the BOE docs and checked the wiring and has confirmed that the wiring is as it should be. We fitted the new ECU yesterday when it arrived, but it hasn't resolved the issue.
He has identified that there is a change in voltage to the injectors which we can't explain. It drops from 12v to 2.5 I think (sorry the guys are at Brands Hatch today) and we originally thought that it was the fault of the ECU, but we now know that's not the case. When we supply 12v to the injectors the fuel pump cuts, which doesn't make any sense.
There is a Multi function relay unit on the car which we have swapped for a new one, which hasn't solved the problem either.
That's a far as we got on Friday. We will start again on Monday.
Do you know anything about the piggy back ECU? We're wondering if this controls the fuelling, so the issue might be there?