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  1. #1

    Default Can OBD II scanner read OBD I ????

    Dumb question...

    I have a 94 Silverado, does this have OBD I for scanning codes?

    Found a OBD II scanner at Harbor Freight for $50.

    Can it read OBD I codes?
    Pavement sucks... :grrrrrr:



    1994 K1500 4x4 Ext. Cab
    PCM chip and Xenon 8000k bulbs
    350cu.in bored over .050"
    balanced Crank, 10:1 compression
    Flat top pistons,cam,ported heads
    Option Racing Cold Air Intake
    Holley Throttle Body Spacer
    Accell Igition, 45kv coil
    FloTech Headers, no CATs, dual exhuast
    Goodyear Silent Armor A/T 305/70-16
    Pioneer SupertunerIII CD USB Bluetooth
    Kicker ZX200.2 ZX Amp
    Kicker Audio COMP 10" Subwoofer

  2. #2

    Default

    You can get an adapter so that the OBDII will fit the port on a OBD1 vehicle. They run around $20 bucks last time I saw one.


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  3. #3

    Default

    good deal, I'll be checking ebay for one.

    Figured for $50 I could use it for both OBD-I and OBD-II scanning.
    Pavement sucks... :grrrrrr:



    1994 K1500 4x4 Ext. Cab
    PCM chip and Xenon 8000k bulbs
    350cu.in bored over .050"
    balanced Crank, 10:1 compression
    Flat top pistons,cam,ported heads
    Option Racing Cold Air Intake
    Holley Throttle Body Spacer
    Accell Igition, 45kv coil
    FloTech Headers, no CATs, dual exhuast
    Goodyear Silent Armor A/T 305/70-16
    Pioneer SupertunerIII CD USB Bluetooth
    Kicker ZX200.2 ZX Amp
    Kicker Audio COMP 10" Subwoofer

  4. #4
    Sr. Engineer
    Join Date
    Dec 2011
    Location
    11-22-boogie woogie avenue
    Posts
    308

  5. #5

    Default

    Found a OBD II scanner at Harbor Freight for $50.

    Can it read OBD I codes?
    You'd probably be better served asking the manufacturer or looking at the tool's documentation to see if it can read the older computers. My gut feel is that, for only $50, it probably can't

    Also, as noted, a special scanner is not needed to read OBD-1 codes on these. A simple jumper wire and the ability to count is enough to get trouble codes.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

  6. #6
    Sr. Engineer
    Join Date
    Dec 2011
    Location
    11-22-boogie woogie avenue
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    Default

    Only thing it will do on obd1 is jumper points a&b..will still have to watch light for codes.

  7. #7
    Sr. Mechanic Ethan's Avatar
    Join Date
    Sep 2009
    Location
    Cedar Park, TX
    Posts
    150

    Default

    No, if you want to read codes off of an OBD I system you need to get the GM Tech 2 with the OBD I adapter, then you can read codes, run tests, clear codes, program the PCM to some degree, and monitor all live input data. I've done it many times with my 94 chevy using a Tech 2, you can usually find them cheap on Ebay since they are outdated.
    1994 Chevy Silverado 1500 Ext Cab 350 cuin TBI in dark Chevy blue
    160,000+ miles
    Original paint
    Original interior
    Original engine and tranny
    wrecked twice stolen once
    Diamond Plate bed rails
    Power windows
    Original Alloy wheels
    Original fancy smancy cup holder
    Tow package
    Original plastic bed liner
    K&N Cone Air Intake
    Dual MagnaFlow exhaust(not true dual) with chrome tips
    MSD Street Fire Performance Ignition coil

  8. #8
    Sr. Engineer
    Join Date
    Dec 2011
    Location
    11-22-boogie woogie avenue
    Posts
    308

    Default

    Quote Originally Posted by Ethan View Post
    No, if you want to read codes off of an OBD I system you need to get the GM Tech 2 with the OBD I adapter, then you can read codes, run tests, clear codes, program the PCM to some degree, and monitor all live input data. I've done it many times with my 94 chevy using a Tech 2, you can usually find them cheap on Ebay since they are outdated.
    Not only thing it will do ..retrieve codes quicker ...had some jump ahead vehicles in 94..95 could read some live data.. was 16 pin scan port
    But was still obd1 complaint.

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