: ODB 1 or ODB II on my 95 Taco?


Earlyworm
06-29-2005, 07:21 PM
My check engine light is on now...The diagnostic plug is under the hood near the intake plenum, so, what computer do I have...Is there another port under the dash?

95 3.4 V-6 Taco x cab.

Thanks!

AK98Taco
06-29-2005, 07:38 PM
The under-hood connector is only one of the connectors, DLC1, and it is utilized for checking systems. DLC3 is for the OBDII communications and it is found under the dash. DLC2 is the Toyota Diagnosis Communication Link, and I am not sure where it is on your truck.

Earlyworm
06-29-2005, 09:53 PM
So I should look into scanners for the same years as later Tacomas then? Altho, I may see if I can rent or get a free test at the parts store...

Kalvin00
06-29-2005, 10:35 PM
It should tell you what it is on the underneath of the hood. A sticker should be placed somewhere on there.

AK98Taco
06-29-2005, 10:59 PM
You should be able get the codes read at an auto parts house like AutoZone or Checker/Shuck's/Kragen.

EnolaGaia
06-30-2005, 07:14 AM
Before you go out and invest in a scanner, you might do some homework (in accordance with your subject line). According to the listing at:

http://www.obdii.com/connector.html
(same as at: http://www.autoenginuity.com/dloads/CARB_OBDII_Compliance.pdf)

... the 1995 (model year) Tacomas (by which I presume they mean the 95.5 ones) are not fully OBD II compliant. I can't find anything specifying whether the 95 Tacos were "sorta OBD II" or "OBD I".

Kalvin00
06-30-2005, 09:32 AM
... the 1995 (model year) Tacomas (by which I presume they mean the 95.5 ones) are not fully OBD II compliant. I can't find anything specifying whether the 95 Tacos were "sorta OBD II" or "OBD I".

My 95.5 Tacoma states on a sticker in the engine compartment it is fully OBD-II compliant. I'm not sure about the 1995 model.

Fernslinger
06-30-2005, 10:15 AM
My 95.5 Tacoma states on a sticker in the engine compartment it is fully OBD-II compliant. I'm not sure about the 1995 model.

95.5 is the first model year actually. 95=95.5

ShowStop
06-30-2005, 10:21 AM
... the 1995 (model year) Tacomas (by which I presume they mean the 95.5 ones) are not fully OBD II compliant. I can't find anything specifying whether the 95 Tacos were "sorta OBD II" or "OBD I".

Here is another one for the search engines...

ALL TACOMA TRUCKS ARE OBD-II

Even my 1995.5 model Tacoma is OBD-II. Whether it is in fully compliance, I don't know, but I'm sure it was in compliance with the current spec at the time of manufacture.

You've got to keep in mind that 1995 was the first year of the Tacoma, the first year for OBD-II in the trucks, and a split model year for pick-ups by Toyota. Thats alot of shit for Toyota to deal with in one year. I'm sure other manufacturers were busy trying to get their electronics upgraded to work with the spec, and maybe not everything was fully up to snuff. I'm pretty damn sure the 1996 models were within full compliance.

Earlyworm
06-30-2005, 04:20 PM
YA, I have learned that if you have coils up front it is a 95.5 (& a tacoma), thus ODB II.

I had it scanned today, front O2 sensor threw up a code. I had it cleared to see if it would do it again. The day before it came on I hauled (way to much) gravel in the bed and had the ole gal squatin bad. I think that may have had sumthin to do with it!

I hope it stays off, those sensors are $160 *%$%& dollars!