Tuner
#31
03-11-2009 | 03:21 AM
Champion
Joined: Jan 2005
Posts: 4,268
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From:
I'd stay away from any Jet chip products but that's just me. Especially for Rams. I'd go with that PP3 for $150 or something like that if I wanted to adjust the speedo and that was basically it. You can find them fairly often for around that price used. Just make sure the one you get is unlocked.
#32
03-11-2009 | 05:03 AM
Registered User
Joined: Feb 2009
Posts: 24
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From: Lodi, CA
#33
03-11-2009 | 05:20 AM
Site Moderator
Joined: Jan 2008
Posts: 8,374
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From: Sioux Falls, SD
Other than a $tealership, I'm not sure how you could program your speedo on a 1994-1995.
In 1996, they switched to OBD II, but 1996-1997 were kind of weird years for it, and can have weird trouble codes that don't necessarily match OBD I or II (they have their own set I believe). 1998 I think was the first year it was really, truly 100% OBD II, hence why most tuners say the oldest trucks they work with are 1998 model year.
OBD I really didn't have a whole lot of reprogramming options, thats why they offered (and some places still do I think) Mopar performance computers, where you replace the whole thing.
In 1996, they switched to OBD II, but 1996-1997 were kind of weird years for it, and can have weird trouble codes that don't necessarily match OBD I or II (they have their own set I believe). 1998 I think was the first year it was really, truly 100% OBD II, hence why most tuners say the oldest trucks they work with are 1998 model year.
OBD I really didn't have a whole lot of reprogramming options, thats why they offered (and some places still do I think) Mopar performance computers, where you replace the whole thing.
#35
03-11-2009 | 10:02 AM
Record Breaker
Joined: Jul 2006
Posts: 2,400
Likes: 1
From: Warren, NJ
That's a funny way to say it but, yes, on '94-'97 trucks, the speedometer was run off a gear in the tailshaft ... the old fashioned way. There are gears available that have different tooth counts to compensate for different vehicle gearing/tire combinations. '98+ use the the RWSS (not the VSS) interpreted by the PCM to run the speedometer/odometer.
#36
03-11-2009 | 11:36 AM
Record Breaker
Joined: Oct 2007
Posts: 1,680
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From: Allentown, PA
I posted a thread over at DT in the regionals asking if there was anything in the general area and no one has come up with anything. Around me, the Citco, turkey hill, BP, Sunoco, Wawa, etc all have it so nothing close for me. I will have to check out the exxon by me. We need to get a list going somewhere tho...
