CamaroZ28.Com Message Board - OB2

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96m6lt1

Feb 5, 2006 04:40 PM

OB2 - OBD1 question

since obd2 has a crank position sensor and the obd1 does not what if any function does the (CPS) have, is it deleted via obd1?

Dave89IROC

Feb 5, 2006 07:50 PM

Re: OB2 - OBD1 question

it plugs the hole in the timing cover..........

96m6lt1

Feb 5, 2006 07:55 PM

Re: OB2 - OBD1 question

so it really does not matter anymore if i convert to obd1 pcm

Birdman7389

Feb 5, 2006 08:05 PM

Re: OB2 - OBD1 question

Misfire detection is waht I was told.
OBDI does not support it, and I dont have one on my car.

shoebox

Feb 5, 2006 09:10 PM

Re: OB2 - OBD1 question

Quote:

Originally Posted by 96m6lt1

so it really does not matter anymore if i convert to obd1 pcm

There is no provision in the OBD-I PCM to monitor the CPS, so it never knows there is one.

96m6lt1

Feb 6, 2006 02:20 PM

Re: OB2 - OBD1 question

cool thanks for the info guys..

Dave '97 Z28 M6

Feb 6, 2006 10:47 PM

Re: OB2 - OBD1 question

Birdman is right... the CPS is used only for misfire detection, in OBDII.

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