Junk yard ECM, NOW WILL NOT START!

Mogman

Member
May 3, 2020
311
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Papalote, TX
I went ahead without any comments and did a full flash to the junk yard ECM now it will not crank.
EDIT after disabling the VATS it will start but I still have the 8 injector codes P268C etc.
Moving over to tuning.

THANKS!!
 
Last edited:

Mogman

Member
May 3, 2020
311
14
18
Papalote, TX
I installed a junk yard ECM into my 1 ton 08 LMM, it ran but had 8 injector codes, P268C,P268D etc. I committed a license and did a full flash of my saved tune but I still have the injector codes and the information display says to clean the exhaust filter....
 

Cougar281

Well-known member
Sep 11, 2006
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St Louis, MO
The P268* codes are probably because the injector flow rates in the ECM don't match what's in the GPCM. This information is not part of the tune file. EFILive should be able to copy the flow rates from the GPCM and write them to the ECM.

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Mogman

Member
May 3, 2020
311
14
18
Papalote, TX
The P268* codes are probably because the injector flow rates in the ECM don't match what's in the GPCM. This information is not part of the tune file. EFILive should be able to copy the flow rates from the GPCM and write them to the ECM.

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THANKS! you are correct, I just did the injector programming and it WORKED YAY
 

Cougar281

Well-known member
Sep 11, 2006
1,506
35
48
St Louis, MO

S Phinney

Active member
Aug 15, 2008
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Quncy, Fl
Also if you flash you file in with the lowered time and key cycles you can do the relearn faster than leaving those parameters stock.


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