12-01-2018, 02:31 PM
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#1
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Location: toronto
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Engine RPM signal
What is the easiest way to tap into engine rpm signal? I am assuming wire tap / crimp type hardware is acceptable.
I am trying to avoid removal of the cluster or would like to make a signal tap connection while the cluster is out so that it does have to come apart again
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986 00S
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12-01-2018, 05:57 PM
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#2
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...okay perhaps there no other way other than to get to the tach signal wire.....is there a good source of information that will confirm which one it is in the cluster harnesses?
PIN number, wire colour, and harness kinda thing.........for 2000.
Wiring diagrams here I come.
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Last edited by jaykay; 12-01-2018 at 06:00 PM.
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12-01-2018, 11:13 PM
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#3
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Join Date: Aug 2009
Posts: 1,466
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There is a wire on the ODBII plug that is connected to tach signal. I'll look tomorrow to see which one. I had a wire connected to my Traqmate Datalogger at one time.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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12-01-2018, 11:35 PM
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#4
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Location: toronto
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Yes that is true.....pretty sure I have seen OBD II shift lights.
I think that this would be the cleanest solution provided provided the proper wire tap hardware is used.....and the OBD wire isn’t screwed up.
Thanks.....Bentley EWDs were not helpful. Then again I am not an Electrical wizard either
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Last edited by jaykay; 12-01-2018 at 11:37 PM.
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12-02-2018, 05:04 AM
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#5
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Join Date: Aug 2009
Posts: 1,466
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Pin#9 on the OBD port. Violet/Green Wire, on my car which is a 2003.
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2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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12-02-2018, 12:32 PM
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#6
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Registered User
Join Date: Sep 2009
Location: toronto
Posts: 2,668
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Thank you sir.....I will try and verify if the wire colours are the same for a 2000.
My guess is that CAN bus arrangements will have changed it
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986 00S
Last edited by jaykay; 12-02-2018 at 08:34 PM.
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12-02-2018, 01:26 PM
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#7
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Registered User
Join Date: Apr 2010
Location: Canada
Posts: 3,128
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there is a schematic for a 7.2 2001 996 on the pelican engine swap page. shows the same as jsceash states - 'tn-signal'. there is also an engine speed signal you can grab, but looks to be a shielded wire so more problematic to tap.
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12-02-2018, 08:36 PM
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#8
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Registered User
Join Date: Sep 2009
Location: toronto
Posts: 2,668
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thanks man I will look that up...!
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