Please Select OEM or PFI Reman in Options. This engine was initially installed in 2001 Chevrolet and GMC trucks, and has since become an option in pickups, vans, and medium-duty trucks.I found some info on the internet about using lly heads and injectors on a 02 lb7 and using the lb7 ecm and ficm to run it using lb7 intake and turbo basicly just swapping heads and injectors and making a custom wiring harness from the ficm to the injectors and haveing the ecm retuned for the lly injectors has anyone else heard of this and has anyone tried doing it I …FICM/IDM for 2001-2004.5 GM 6.6L Duramax LB7 Part # 97720663 / 0 281 010 014. The Duramax V8 engine is a family of 6.6 liter Diesel V8 engines produced by DMAX, a joint venture between General Motors and Isuzu in Moraine, Ohio.The Duramax block and heads are supplied from reliable vendors of General Motors. In 2001 GM replaced the outdated Detroit Diesel 6.5L when they debuted the. Tried a different CP3 same issue, fuel filter housing is freshly rebuilt and I've got a good return. Its only building 600 psi of fuel rail pressure while cranking according to the scan tool. Hey guys, I just put a junkyard LB7 in my 03 2500. This is the LLY underhood harness that has the LLY ECM and TCM connectors on it, as well as the long tail that goes down. What harnesses and computers do I have to send? -For 2001-2002 LB7 conversion harness, you have to send the "ECM/TCM harness" from an LLY. Lb7 ficms are considerably cheaper then the llys.2001-2004 LB7 to 2004.5-2005 LLY conversion harness frequently asked questions. Has one sent their ficm away to sa electronics for a rebuild?. Lb7 ficm on lly 2001-2004 LB7 to 2004.5-2005 LLY conversion harness frequently asked questions.
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