Talk Morgan Forums Morgan Sports Cars Morgan Three Wheeler & Super 3 Help with ECU fault code

Whilst returning from the Albert Ball bash the car decided it wanted remain in France and ground to a halt.
The problem seemed to be the fuel pump again (replaced at 8000 miles under warranty, milage now up to 18500 miles). After the car had stopped there was no fuel pump priming noise when ignition turned on, however this time the engine management light had also come on.
After being recovered home I plugged into ECU, the fault codes are P0170 Front Adaptive Maxed Out and P0173 Rear Adaptive Maxed out.
I assumed fault codes were possibly due to the fuel pump pressure
Being low and the Adaptive map increasing the fuel injection pulse time to compensate until it reached its max.
I have fitted a new fuel pump today and the pump priming noise is back to normal and the car started ok, however when I try to clear the fault codes they clear for a few seconds and then return. This happens with just the ignition on or when the car is running. Left car running at idle until warm and tried again but same results. Didn't want to take car for a run with engine management light on just in case it's causing damage.
Any help or suggestions would be appreciated before I arrange trip to dealers.
Cheers Big Steve

Hi Steve,

It could be that the ECU will take time to readjust to the correct fuel pressure and until it does it'll keep throwing the fault codes.

I'd try disconnecting the battery for 10 mins or so to try to reset the ECU to it's default, or leave it idling for 10-15 mins.

I'm sure otehrs with more expirience will be along shortly with more help.

Good luck!

Hi Steve,

Nothing much to add to Chris' comments.

But, to ensure no residue current in system, after disconnect turn headlights on for 20 seconds or so.

Regards

Geof

I had the same codes when my fuel pump failed. They are caused by the ecu not being able to compensate for the reduced fuel pressure (or the fuel pressure dropping out of spec, same difference). My pump initially recovered but at a reduced pressure (20 psi) and I then had a check light although the engine would run at idle.
After I replaced the pump, the ecu light was extinguished and I cleared the faults using the S&S software.

Thanks for the advice everbody, I have a new fuel filter being delivered on Monday I will fit that and then give car a good run.
Fingers crossed
Cheers Big Steve

Good luck BigSteve, you will be back on the road soon I'm sure...

Update
Fitted fuel filter when it finally arrived and car ran okay but engine management light still on after 15 miles and fault codes would still not clear. Realised there is option to reset adaptive map did this and then fault codes cleared and no engine management light. Done 180 miles today with no problems car running great.
Fingers crossed all is now good for Goggles and Gauntlets.
See you all there
Big Steve

That's really great news - & Het says "Fill car to top 't tank"

Great news Steve, see you both in Norfolk

Steve, glad to hear things seem to be sorted out now