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Thread: Miss
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03-14-2018, 01:50 PM #1LTX Master
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Miss
94 ,z28 lt1,I was driving home n my car started to miss. It would miss then straighten up n run good then miss again.in and out like that. It's still doing it no codes.i know it could b many things. But what does anybody think might b going on
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94 Z28,4A,LLOYD SG CAM,1.6RR,SHIFT KIT,2,800 STALL,HEADERS,HEADS PORTED & POLISHED,ALL INTERNAL ENGINE PARTS LUNATI !!!
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03-14-2018, 01:54 PM #2Xtreme Member
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Opti?. Plug wires? Is it a stumble like a fuel issue? Need more info.
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1995 Trans Am - CAI - TB coolant bypass - Headers & Performance Muffler - Poly mounts - stock LT1/A4 - 13.3 1/4 - 1.9 60 foot , driven daily.
2008 C6 Corvette LS3 Snake charmer Ram Air intake. 6 Speed Switchable mild to wild exhaust.
2002 Silverado LT Extd Cab Z71 5.3 A4 Composite Bed Stock
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03-14-2018, 03:41 PM #3LTX Master
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BEAVER
94 Z28,4A,LLOYD SG CAM,1.6RR,SHIFT KIT,2,800 STALL,HEADERS,HEADS PORTED & POLISHED,ALL INTERNAL ENGINE PARTS LUNATI !!!
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03-14-2018, 05:43 PM #4LTx Guru
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Did you actually scan it for codes, or are you basing “no codes” on lack of an SES light?
SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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03-14-2018, 05:57 PM #5Xtreme Member
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Idle fine clears up when you give it more? Well your going to need to give us more input. I
Sent from my HP Pro Slate 8 using Tapatalk
1995 Trans Am - CAI - TB coolant bypass - Headers & Performance Muffler - Poly mounts - stock LT1/A4 - 13.3 1/4 - 1.9 60 foot , driven daily.
2008 C6 Corvette LS3 Snake charmer Ram Air intake. 6 Speed Switchable mild to wild exhaust.
2002 Silverado LT Extd Cab Z71 5.3 A4 Composite Bed Stock
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03-15-2018, 08:47 AM #6LTX Master
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Yes I scanned it
Sent from my SM-G930R6 using TapatalkBEAVER
94 Z28,4A,LLOYD SG CAM,1.6RR,SHIFT KIT,2,800 STALL,HEADERS,HEADS PORTED & POLISHED,ALL INTERNAL ENGINE PARTS LUNATI !!!
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03-15-2018, 08:47 AM #7LTX Master
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I don't know what else to give u. That's what it's doing
Sent from my SM-G930R6 using TapatalkBEAVER
94 Z28,4A,LLOYD SG CAM,1.6RR,SHIFT KIT,2,800 STALL,HEADERS,HEADS PORTED & POLISHED,ALL INTERNAL ENGINE PARTS LUNATI !!!
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03-15-2018, 12:14 PM #8Lurker
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Fuel issue would (should) get worse with more engine load not clear up.
90% of the time a missfire in an Lt1 ends up being the opti... for me anyways But I keep fresh wires and plugs on my stuff.
Is it poping/backfiring or just going dead on a cylinder?
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03-16-2018, 06:15 AM #9
[QUOTE=fullforce;485997]Fuel issue would (should) get worse with more engine load not clear up.
^^^ what he says...
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03-16-2018, 08:02 AM #10Xtreme Member
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Sounds like what mine was doing with my first opti...ran good under load but hesitated and stumbled off throttle. Went LTCC..all my little quirks I was having vanished.
2012 Sierra - 5.3, Summit "Stage 1" Truck Cam
1994 Jimmy - LS? LT? 4wd? AWD? Time? Money?
1994 Formula - 5.3, Terminator X, Billet VS7875, "Best Cam", T56, QP 9"
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