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Help me identify these plugs

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Help me identify these plugs

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Old

Aug 3, 2011 | 03:15 PM

#1

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Staging Lane

Joined: Jul 2011

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Help me identify these plugs

Going through my '99 lq4 wiring harness and identifying all the connections, help me out with these mystery ones please!

Engine harness marked so far.

Old

Aug 4, 2011 | 12:50 AM

#2

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Quote:

Originally Posted by kwnova9

All Transmission.. VSS, Trans Plug, Prindle Switch.

Quote:

Originally Posted by kwnova9

Alternator.

Quote:

Originally Posted by kwnova9

Looks like the Knock Sensor.

Last edited by the_merv; Aug 4, 2011 at 01:35 AM.

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Aug 4, 2011 | 09:36 AM

#3

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cut off the wire loom, then download the swap info doc in my sig (or go to lt1swap.com). trace the wires from the ECM, that'll be your best bet. your '99 is probably exactly like my '00. See below for my thoughts.

PCM pinouts
fuseblock pinouts

Quote:

Originally Posted by kwnova9

Looks like IGN 3 voltage - I did not use I don't think it's a knock sensor, due to its close proximity to the other plug.

See this link

Last edited by hookemdevils22; Aug 4, 2011 at 09:58 AM.

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Aug 4, 2011 | 01:47 PM

#4

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Staging Lane

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wow that info you just gave is priceless, much appreciated

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1971, harness, hookup, knock, lq4, sensor, th350, wire

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