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Originally Posted by MT-2500
Ask the mechanic that tested it what it was?
And post back them code no.
obd1 is 2 digit code
obd11 is 4 digit p codes
What was the code no.?
Also with a misfire alway fix the missfire first before testing 02 sensors.
A missfire can cause a 02 sensor code.
MT
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mt 2500 I've gotta say i disagree I read on the muauls behind glovebox is obd2 and on fender is obd1 there are actilly 3 diffent boxs for 95... so yes its confuseing i do however have the box he speaks of that says obd1 cerf. on my 95 and with the 2 port inside the car and guess what...I contacted genral motors with my vin and they told me it was obd1 so if you want to be sure go to the dealer have em run your vin...thats the easyest way to know..and yes 96 and up were all obd2 .