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10-23-2019, 10:06 AM #11
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You can’t flash the codes on a 95 by shorting the DLC pins. 1993 was the last year that worked. You need an OBD-1 scanner. Connect using the correct 12-pin —> 16-pin adapter, or jumper the pins from the DLC connector to the scanner connector:
http://shbox.com/1/xraycable.jpg
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10-23-2019, 08:26 PM #12
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You think this would work For the codes ? I dont wanna short something out though . .
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10-24-2019, 02:26 PM #13
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GaryDoug' s. Scan9495 works great. No short pin.
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10-24-2019, 05:03 PM #14
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You cant flash codes on an obd1 lt1 to my knowledge
Originally Posted by Uyepz28
2021 Charger Scat 392
1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot
The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!
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10-25-2019, 02:16 PM #15
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You cannot jump pins on your car to flash codes. It does not work on the LT1 PCM. You either have to use a scanner that can read OBD1 with the OBD2 style port or software like Scan9495 on a laptop (with an ALDL interface cable). Originally Posted by Uyepz28
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10-25-2019, 05:08 PM #16
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But you can program your key fob.
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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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10-30-2019, 05:41 AM #17
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Sorry for the late reply, wasn't able to acces the site for some reason. I haven't been able to say for sure if its fixed, however, I did go under it and repaired 2 ground wires. Small one from the starter looked almost as if a squirrel had nibbled on it a little. The large wire from either the battery or alternator to the block was fraying a bit so I replaced it. No issues since, but I haven't had it on a long enough trip to be 100% sure yet.
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95 Z28 - Forged 383 LT1, Performabuilt Stage 2 4L60E w/3200 stall, Pacesetter LT's & ORY with a stockish exhaust (E-cutout soon to come!)
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11-14-2019, 09:24 AM #18
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Nice I havent had much time to work on it but will definitely start there . I ended up buying the Bosch 1300 scanner. Just havent been able to diagnose while the problem happens . But i do have a Quad Driver 2 Bad that shows up from startup to shutdown any ideas what this does?
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11-14-2019, 01:10 PM #19
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Is the code DTC 27? That was the Quad Driver #2 code up until 1993. After that, it's for the EGR vacuum solenoid.
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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11-14-2019, 04:34 PM #20
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Could that be the cause for my shutoff problem.? I also noticed that the voltage starts dropping as the car gets to normL temp once the voltage drops to a little under half thats when it starts acting up .
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