96xj how to switch ob1 to ob2
#1
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Model: Cherokee(SJ)
96xj how to switch obd1 to obd2
So I bought an xj with obd1 in it and I wanna keep it so I need to redo what work some genius did and I wanna put ob2 back in so I can drive on the road!! I'm not scared of work so if anyone knows tell me what exactly I need to do to do this job!!!!!! Please
Last edited by Codyizs1kc; 01-20-2018 at 07:11 AM.
#2
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Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
Are you sure it was originally OBD2 and converted? Early 96's were OBD1 from the factory (if you're drivers door sticker indicates it was made in '95 it could be OBD1)
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Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
Like firebane mentioned, that's a major undertaking. Do you know why a PO did that? I'm wondering if it's the case where the PO put an older computer in it or something like that.
I'd assume that screwing with the OBD2 system is illegal in most or all states.
If you don't have access to the person who did the change you may be in for a major undertaking of tracing wiring using diagrams from the FSM.
I'd assume that screwing with the OBD2 system is illegal in most or all states.
If you don't have access to the person who did the change you may be in for a major undertaking of tracing wiring using diagrams from the FSM.
#6
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Well idk who did it so that doesn't help but I'm quite sure you don't need to change ecu from what little I found on this but idk what other details would you need?
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#8
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Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
If you are certain the ECU is original, then that's a plus.
Details-wise, it would be helpful to know whatever details you know about the modification. Are you certain it was replacing ODB2 with ODB1 or is it just that your ODB2 was hacked and is malfunctioning. What have you found that is modified, does anything work, etc?
#10
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Because I live in n.y and our inspection you have too get hooked up threw the ob2 too make sure you don't have any check engine issues it sucks but I'm trying to work threw this
#11
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Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
In MA at least, one of the inspection checks is the ODB2 system and the emissions testing actually hooks into the ODB2 port.
Fortunately for me, my 95 is exempt from emissions testing (I actually think this could be due to not having ODB2..).
Fortunately for me, my 95 is exempt from emissions testing (I actually think this could be due to not having ODB2..).
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The exhaust doesn't have a cat so pretty much everything was change out but idk that's why I wanna know how to do cause I willing to change everything out I have a 01xj that I can change everything with beside harness cause it's auto
#14
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Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
The 01 is going to have a ton of stuff that won't directly swap out. There was a recent thread re: the fact 01's have a pre-cat exhaust with multiple O2 sensors.
My 95 has a single cat located near the crossmember. You'll need to get an OEM compatible cat (I'd get a "direct fit" since you don't want to screw around in a tough inspection state) which should have a hanger that connects up with the transmission mount.
Is the rest of the exhaust OEM or not? How many O2 sensors does it have currently and where are they?
My 95 has a single cat located near the crossmember. You'll need to get an OEM compatible cat (I'd get a "direct fit" since you don't want to screw around in a tough inspection state) which should have a hanger that connects up with the transmission mount.
Is the rest of the exhaust OEM or not? How many O2 sensors does it have currently and where are they?