Misfire detected is back
Runs great, and I'm stumped!
I cleared the ecm and drove awhile and the misfire is again detected only code I have is recurring code DTC 1656 boost solenoid control circuit however this circuit is functioning.
I'm going to change out Heath Stage 3 ecm today and go back to my L65 HD ecm then drop boost and see what happens from there.
I'm curious if the timing gears built in 2deg advance have anything to do with this issue?
Last edited by DA BIG ONE; 02-15-2008 at 06:35.
Reason: add
99 GMC SUB, 2500, 4x4, 6.5 TD (F) #H32 enhanced blk, Phaser timing set, B&D IC, 3" ATS exh, K&N w/prefilter, 4WD NVG 246, 4L80E kevlar Transgo off road/tow mods/B&M supercooler, 14 FF MagTec w/locker 3.42:1, 9.25" IFS frt/diff 3.42:1 w/ARB locker, AutoMeter Boost & pre-turbo pyro meter, 12,000 lb hydro winch, Warn classic bumper w/brushguard & diesel scoop, Max E-torq Stage 3, hi pop inj, oil bypass sys, on board air comp for front ARB locker & tire inflation, DynaView driving/auto-cornering lts, DZ nerfs, A/T 285/75/16 SilentArmor 3750 lb rated on 3750 lb rated Alcoa, 3 IP drivers 2 r spares.