Won't Start - Fuel injection Problem

kk5zc · Post by **kk5zc** » 01 Jan 2011, 17:17

It is reading 12.1V. Yesterday, when I mentioned it seemed a little low, it was 11.8V.

I have pulled the ECU and reseated. That must have reset something because my OBD led light no longer dimly glows. I pulled the codes and reset.

At this point, everything seems to be back to normal. I haven't driven it yet, but it starts and runs. The fuel relay is no longer making the noise that it was making.

Bobby

Post by **precopster** » 01 Jan 2011, 19:28

Corrosion is a fault finders worst friend because it can strike anywhere at any time.

Fortunately your persistence has paid off.

When the relay was still clicking when directly connected to the battery I thought it was time for you to get a new relay.

If it weren't for the dimly lit OBD LED I guess you wouldn't have much to go on.

kk5zc · Post by **kk5zc** » 18 May 2011, 18:07

This problem has returned. I've done all of the same checks and still no solution. I am not getting power to the wire on the connector that should have power to trigger the relay. When I jump this wire to the battery, the relay clicks on and the car will start. Another issue worth mentioning is that I can't read the DTC codes. However, if I energize the relay wire, I can check the DTC codes. It seems as though the ECM is powering up when I energize this wire. Also other components on the engine start making sounds as well.

Can anyone tell me where the power is coming from for this relay wire?

Thanks for the help.

Bobby

Aphx02 · Post by **Aphx02** » 26 Nov 2023, 20:04

Any updates on how this was resolved? I have the same situation with my Son's '96 850.