Discussion:
Toyota 8FGF15

The customer tells us the lights were left on over night so the next day the battery was flat. After jump starting the truck and subsiquently fitting a new battery the truck seems to be in limp mode with no error codes being displayed but engine management lights on.

As things have gone on the truck is now difficult to start.

Any ideas?
  • Posted 27 Jul 2013 01:13
  • Discussion started by Fal141
  • West Yorkshire, United Kingdom
Showing items 1 - 4 of 4 results.
Did it end up being a blown ecu?
  • Posted 21 Jul 2021 07:26
  • Reply by Kyle_moore
  • Indiana, United States
Hi! I have the same codes.. E06-3 and E03-1. Did you found how to fix it? could you help me?
  • Posted 24 Oct 2013 05:45
  • Reply by azucena_v
  • Mexico City, Mexico
THAKS AZU_VAZ@YAHOO.COM.MX
Thanks for your suggestion, I actually found the ECU fuse blown. Once I replaced it I had at least 6 error codes.

Cleared most but 2 keep coming back:

E06-3; Throttle motor power supply circuit open abnormality
E03-1; Intake pipe pressure sensor open abnormality

I have conducted all inspections with regard to E06-3 which point to a faulty ECU.

Regarding E03-1, the truck starts and runs only if the big breather/vacuum pipe which connects the engine top through the one way valve to the bottom of the carburettor is removed. If reconnected the engine stops instantly.

Can the ECU be blown by connecting the battery terminals on wrong when jump starting? Is this likely to be an ECU problem?
  • Posted 30 Jul 2013 19:00
  • Modified 31 Jul 2013 00:52 by poster
  • Reply by Fal141
  • West Yorkshire, United Kingdom
Hi,

Manual tells;

After disconnecting the battery terminal or removing the LPG fuse, the fuel system learning value will be cleared. This may cause temporary insufficient power output. Power output will return after being driven for a short while.

Regards
  • Posted 28 Jul 2013 05:35
  • Reply by nacsand_n
  • Madrid, Spain

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