EFI Harness needed!!
#1
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Thread Starter
EFI Harness needed!!
Please, need an EFI wiring harness to fit a 454 Mag (1997)....
got problems in mine with spark/timing control codes showing up & causing idle/dieing problems.
Pls email/msg/call
[email protected]
918-760-1080
Thanks!
got problems in mine with spark/timing control codes showing up & causing idle/dieing problems.
Pls email/msg/call
[email protected]
918-760-1080
Thanks!
#2
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Join Date: Apr 2004
Location: Northwood, NH
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#5
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I have a couple of harness off 1995 502 efi and also 1999 502 efi,which controller do you have,the mefi ecm have delphi numbers on back of box,from that number i can determine what mefi ecm(1-4) you have,I think that is the only difference in the harness,give me a call Dave 410-956-5381
#6
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Thread Starter
According to Mercruiserparts.com, all 454 & 502 MPI engines used p/n 84-860226A2 efi harness. No change for any ecm change noted
My ecm is a MEFI 1 per Arizona Speed that did my mapping.
I'll call tomorrow!
Thanks.
My ecm is a MEFI 1 per Arizona Speed that did my mapping.
I'll call tomorrow!
Thanks.
#7
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The MEFI1 and MEFI3 (MEFI2 was never used in the 502) wire harness's are different. The MEFI1 had a seperate knock module and different ECM pinouts.
#10
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860226A2 is the correct number for a MEFI1 equipped 454 and 502 Mag.
861162T1 is for the MEFI3 ('98 1/2 model year, serial # 0L086001 and above) 454 and 502 Mag.
861162T1 is for the MEFI3 ('98 1/2 model year, serial # 0L086001 and above) 454 and 502 Mag.
Last edited by Dave_N; 05-03-2008 at 11:36 AM.