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Discussion Starter #1
Ok so I bought a 06 ram 1500 5.7 with mds 4x4 at an auction and come to find out ot had a rod knocking. Well I had an 04 ram 1500 5.7 non mds 2x4 so I changed the motor honestly it was a pretty basic swap also used the coils off the 06 because the plug from the 04 was different I hooked my super chips tuner up and deactivated the mds system and it will idle just fine but when driving it spits sputters backfires and will barely pull its weight. Any ideas pleases help before I torch it lol
131850
 

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Discussion Starter #3
Yes fuel system lean. Cylinders 1467 reactivation failure. Also tried running in tow haul mode. No difference. And tried leaving the system on no difference. Tho the sensors to it aren't there
 

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Discussion Starter #6
Fixed the problem had to run the coils that came on the 04 plug ins are different so had to change those 2 but now runs like a dream
 
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