obd1 and obd2

Jester · 12-14-2004, 11:36 AM

ive noticed on my dads 99 volvo 850 it says OBD-2 on the floor right in front of the radio, and on my friends 89 stang it says OBD-1. whats the difference???

suprra_girl · 12-14-2004, 10:37 PM

i believe they are the different computer systems diagnostics and such throughtout the years... mk3 supras are on obd1 and are real pains for diagnostics and basically the only output you can get from them is the diagnostics we do ourselves.. the pretty machine doesn't manage to get any more out of it
whereas obd2 has alot of toys that the diagnostics machine can pick up

that's my understanding of it so far... no doubt as time goes by i'll learn more about it... but i haven't the need yet hehe
so old cars = obd1
new cars = obd2

Jester · 12-15-2004, 11:22 AM

oh ok thanks

GOGS · 12-15-2004, 11:27 PM

Hi
all european cars have been forced into using a common obd2 multiplug sharing 20pin diagnostics for emmision control +live reading of live faults.Sometime soon to be is police stop checks with plug in giving spot fines for running with emmision live faults .Removing cars from the road + gaining extra revinue seems thair aims.
Old jap cars ie toyota seem to need specific diagnostic mechines+/or blink codes to acess or simply test live readings at ecu.
Newer motors ie 2000/on volvo ,merc ect go in for several ecu,s working together to make systems run so only specific computers can test diagnostics without doing harm.

CAN BUS DATA

12-14-2004, 10:37 PM	#2
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	i believe they are the different computer systems diagnostics and such throughtout the years... mk3 supras are on obd1 and are real pains for diagnostics and basically the only output you can get from them is the diagnostics we do ourselves.. the pretty machine doesn't manage to get any more out of it whereas obd2 has alot of toys that the diagnostics machine can pick up that's my understanding of it so far... no doubt as time goes by i'll learn more about it... but i haven't the need yet hehe so old cars = obd1 new cars = obd2 __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

12-14-2004, 11:36 AM	#1
Jester 3" Exhaust Join Date: Nov 2004 Location: Abington, PA Posts: 66	ive noticed on my dads 99 volvo 850 it says OBD-2 on the floor right in front of the radio, and on my friends 89 stang it says OBD-1. whats the difference???

12-15-2004, 11:22 AM	#3
Jester 3" Exhaust Join Date: Nov 2004 Location: Abington, PA Posts: 66	oh ok thanks

12-15-2004, 11:27 PM	#4
GOGS Intake Join Date: Oct 2004 Location: aberdeen scotland Posts: 44	Hi all european cars have been forced into using a common obd2 multiplug sharing 20pin diagnostics for emmision control +live reading of live faults.Sometime soon to be is police stop checks with plug in giving spot fines for running with emmision live faults .Removing cars from the road + gaining extra revinue seems thair aims. Old jap cars ie toyota seem to need specific diagnostic mechines+/or blink codes to acess or simply test live readings at ecu. Newer motors ie 2000/on volvo ,merc ect go in for several ecu,s working together to make systems run so only specific computers can test diagnostics without doing harm. CAN BUS DATA