OBD question
Posting Guru
Joined: Jun 2009
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From: Fort Smith, Arkansas
https://www.ford-trucks.com/forums/5...t-come-on.html
Fleet Mechanic
Joined: Jan 2012
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So the scanner says the truck is obd1 is that what your saying. If so that's because it is only the California emissions trucks were obdii compliant till 05 I believe is when that changed. Because of the weight of the truck they weren't required to be obdii compliant except in California and the states that used California emissions standards. If you look under the hood at the emissions sticker it will say obdi if that's how your truck was built.
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4wd Low
Joined: Feb 2017
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Great! Thanks for the quick replies. I'm new at this scanner stuff. This scanner is OBD II but after replacing a fuse it does give me some info but will not read all of my VIN #s and a couple of other things. Are they backward compatible? If so should I use this one or send back and get a new OBD I?
Hotshot
Joined: Jan 2004
Posts: 19,763
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From: St Louis
There's nothing wrong with either your truck or your scanner.
Trucks over 8500#, unless they were California-emissions, were all OBD1 software running on OBDII hardware up until they were required to become OBDII compliant.
OBD1 software is limited so do not expect it to do the same as a truck that left the factory with an OBDII calibration.
Not exactly. If it's OBDII, it will says so (or say Commie-fornia). If doesn't say either, then it's a "Federal" OBD1 calibration. Early models won't say "OBD 1".
Trucks over 8500#, unless they were California-emissions, were all OBD1 software running on OBDII hardware up until they were required to become OBDII compliant.
OBD1 software is limited so do not expect it to do the same as a truck that left the factory with an OBDII calibration.
If you look under the hood at the emissions sticker it will say obdi if that's how your truck was built.
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