LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Knock module OBD-I or II?

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Old

Aug 21, 2007 | 02:48 AM

#1

z28xlr8s

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Joined: Jul 2007

Posts: 16

Knock module OBD-I or II?

How can you tell what knock module you have? I have a 94 Z

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Old

Aug 21, 2007 | 03:18 AM

#2

SS RRR

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Joined: Oct 1998

Posts: 3,144

From: Jackstandican

Modules aren't OBD specific. Only the knock sensors.

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Old

Aug 21, 2007 | 03:48 AM

#3

adamc

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Joined: Jul 2006

Posts: 44

From: Greenville, KY

Part No. 16214681 LT4 Knock Sensor Module

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Old

Aug 21, 2007 | 09:00 AM

#4

z28xlr8s

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Posts: 16

So the knock module plugs in and replaces the knock sensor?

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Old

Aug 21, 2007 | 11:33 AM

#5

Stl94LT1

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Joined: Apr 2006

Posts: 1,083

From: O'Fallon, MO

The knock module plugs into the PCM, and the knock sensor screws into the block.

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Old

Aug 21, 2007 | 01:48 PM

#6

shoebox

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Joined: Dec 1969

Posts: 27,725

From: Little Rock, AR

Quote:

Originally Posted by z28xlr8s

So the knock module plugs in and replaces the knock sensor?

No, they are two separate parts that work together.

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Old

Aug 21, 2007 | 05:57 PM

#7

1redTA

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Joined: Apr 2004

Posts: 144

From: mobile al

re

what if you have an OBD-II car(96 Trans Am) and decide to swap to an OBD-I pcm, should you change the sensor then also???? I purchased my pcm from PCM4less if that helps any

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Old

Aug 21, 2007 | 07:13 PM

#8

SS RRR

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Joined: Oct 1998

Posts: 3,144

From: Jackstandican

Quote:

Originally Posted by 1redTA

what if you have an OBD-II car(96 Trans Am) and decide to swap to an OBD-I pcm, should you change the sensor then also???? I purchased my pcm from PCM4less if that helps any

The only component you need to change is the SENSOR. As stated the MODULE is not OBD specific.

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Old

Aug 22, 2007 | 08:43 AM

#9

1redTA

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Joined: Apr 2004

Posts: 144

From: mobile al

re

"The only component you need to change is the SENSOR. As stated the MODULE is not OBD specific."
WTF! did I mention the MODULE, I asked about the SENSOR

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Old

Aug 22, 2007 | 09:32 AM

#10

jasonisdn

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Joined: Oct 2001

Posts: 584

From: NC Burlington

i run my OBDII sensor in my OBDI swapped car, no issues.

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Old

Aug 22, 2007 | 04:42 PM

#11

SS RRR

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Joined: Oct 1998

Posts: 3,144

From: Jackstandican

Quote:

Originally Posted by 1redTA

"The only component you need to change is the SENSOR. As stated the MODULE is not OBD specific."
WTF! did I mention the MODULE, I asked about the SENSOR

I was emphasizing my first post since it answered your question:

Quote:

Originally Posted by SS RRR

Modules aren't OBD specific. Only the knock sensors.

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Old

Aug 23, 2007 | 12:52 PM

#12

Injuneer

Administrator

Joined: Nov 1998

Posts: 71,086

From: Hell was full so they sent me to NJ

Ask pcmforless if he already converted your OBD-I PCM so that it would not need a replacement on your OBD-II knock sensor. He may have already taken car of it.

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Old

Aug 25, 2007 | 07:48 AM

#13

1redTA

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Joined: Apr 2004

Posts: 144

From: mobile al

re

I read up on the resistor change, and remember that was how it was done. Thanks Art

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