TIMING ISSUES
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Joined: Jan 2007
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From: Knox,P.A.
Car: 86' IROC-Z/03' Silverado Z-71
Engine: 355TPI/ 5.3 Ltr.
Transmission: 700R-4/ 4L65E
Axle/Gears: 7.5 in.-3.73 POSI
TIMING ISSUES
I have a Haltech E6GM ecm in my 86 iroc, ive got the car to start but it starts very hard and is fouling plugs like crazy I have my timing set at 15 deg. at idle and 38 deg. total advance. Does anybody know what tming should be when the engine is cranking, I do think my idle timing may be too far adv. , i read stock is 6 deg. . My ignition is locked to the ecm at 10 deg. as it says to do in the manual. Also the manual says to set the ignition- divide-by to 2 for batch fire in the ignition setup file, I had mine set at 4 which is probably why it was running severly rich and hard to start. Anybody familiar with haltech ecm's, your help would be greatly appreciated. I just need some specs to get started with.
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theshackle
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Sep 17, 2020 08:26 AM





