22 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHack of the day: LED tach / shift light
Leading reported evidence
Replace with the shift
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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Read evidence and context
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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
Shift-i became unavailable quite some time ago, but has since been replaced with the Shift-
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Word from the vendor is a new and improved version is "on the way" but no ETA at this point....I'm searching for other options; tired of taking my eyes off the road to check RPM
Leading evidence: 'Replace with the shift' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check rpm' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
The pins we will use are not required or used by OBDii, but manufacturer specific, so don't expect them to be on all other OBDii connectors.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
I also used some friction tape to bundle the Shift-i wires into a harness.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
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Suggestion
Word from the vendor is a new and improved version is "on the way" but no ETA at this point....I'm searching for other options; tired of taking my eyes off the road to check RPM
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion · Original poster
Porsche uses the same PIWIS computers on all modern porsches, I can't believe they would have changed the pinout on the 997.2.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check rpm
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Word from the vendor is a new and improved version is "on the way" but no ETA at this point....I'm searching for other options; tired of taking my eyes off the road to check RPM
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
22 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T112012Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
One of the things I missed most about my '82 SC was the great big, super-easy to read VDO tach... And you could index redline at twelve o-clock!
Maybe it is better with white or silver faced gauges, but I don't find the tach on my 996 particularly easy to read at a glance or out of my peripheral vision, so I decided to add an LED tach/shift light. I had read some good things about the
Ecliptech Shift-i
progressive shift indicator, so I decided to give one a try. $183 shipped...
Got some time to install it today, so far very happy! I decided to mount it on the stationary part of the steering console.
It comes in two versions, flat base or curved base. I ordered the curved base. As it turns out, the flat base might have been a bit easier to install in the spot I finally selected... No worries, I cut a small piece of Kydex and got out the heat gun to make a bracket for my curved shift light. I also used some friction tape to bundle the Shift-i wires into a harness. Closest stuff I've found to what Porsche uses for their harnesses.
Wiring is pretty easy. The Shift-i has three wires it needs connected. Switched power (red), ground (black), and a tach signal (blue). I had seen a couple of other installation notes describing taking apart the instrument panel and/or the center console to get power and ground and route the wires...
All completely unnecessary.
Porsche's manufacturer-specific additions to the OBDii connector wiring have everything you need. The pins we will use are not required or used by OBDii, but manufacturer specific, so don't expect them to be on all other OBDii connectors. Fortunately Porsche has exactly the right wiring on their OBD connector. You can get easier access to the connector by removing the torx screws holding it in place.
Pin 1(black/red) is switched power. Don't confuse it with Pin 16 (red/black) which is battery, always hot. The power rating on pin 1 is 5A. Shift-i doesn't rate the power consumption of their device, but a few LED's and a very small logic board, probably 500mA max. Connect this to the red Shift-i wire.
Pin 4 (brown) is chassis ground. Don't confuse it with Pin 5 which is signal ground for OBDii! Connect this to the black Shift-i wire.
Pin 9 (violet/green) is tach output. Fortunately Porsche provides this for us in such a convenient place! Connect this to the blue Shift-i wire.
To route the wires, others had described taking apart the instrument panel and removing some of the ventilation ducting... I opted for a slightly easier approach. Took a heavy-duty 36" zip tie and fed it up from the bottom. It was pretty easy to manipulate it out the steering column opening, then I just taped the Shift-i wires to it and used it as a wire pull.
The Shift-i is highly configurable and has many different modes... The way I currently have it set, each LED = 1,000 RPMS. My first four LED's are green (1K-4K RPM), five and six are yellow (which comes on at 5K and 6K RPM, and at 7K RPM, just below actual redline, the red LED comes on and the yellow/red flash quickly as a shift indicator. Again, you can set this up many different ways, but in this config, it really operates as a full range tach as well as a shift light. I think perfect for my needs...
Sorry, no pictures of the shift indicator... Will try and get a video of it in operation with 7K shifts.
Definitely... And while I don't have any great fear of bouncing off the rev limiter, it is so much smoother to time your shift just before the fuel cut. The 996 tach in my opinion is too hard to see in a track environment, and the stock exhaust is too quiet to do it by sound. I'm sure I would have developed more of a feel with more hours in the car, but the progressive shift lights make it so easy!
I raced Spec Miata for a few years and used this shift light. Works great. Very visible using peripheral vision. Bright enough for the sunniest day. Programmable to your beginning rpm (the first green light) all the way to the "warning" lights and finally the red line. Great stuff!
I know this post is over a year old.
Thank you for the tip how to connect to the ODDII wiring harness.
Just installed mine today looks great. Just need to set up the upper and lower RPM range for the LEDs.
One tip would like to mention is that the OBDII plug is held in with 3 screws, not the 2 visible at the bottom edge of the dash. You need to remove the fuse box carpet bezel to get at it.
Was glad to find this old post since with an FVD wheel at 6'1" my tach is pretty obscured.
Made for a quick install!
I got a flat one that works well in a 996.
Thanks a bunch- M
Thank you for the great how to, I been on the fence for this Shift Light or the Raptor shift Light w/launch.
Best part was the wire tie fish through the dash .
I'm pretty sure the 997.2 obd2 wiring is going to be the same... Simple enough to try. Buy a $10 obd2 extension cable on Amazon and hook it up like suggested in the first post. Porsche uses the same PIWIS computers on all modern porsches, I can't believe they would have changed the pinout on the 997.2. Tell your installer to stay the hell away from the ecu.
No worries about tapping wires from ECU. It's very similar to the 997.1 but is a different lead. Just use the the ignition wire to one of the coil packs.
I've circled all 6 options here on the wiring diagram
in green
. Ignore the red ones. That was for a different project of mine.
PM if ?s.
I don't check this forum.. just found it randomly in google search.
Nice install! Looks great!
For those interested, I've got the same setup. Here it is in action on the track:
360° Virtual Track Session - Chasing a 991 GT3 - YouTube
This appears to be a great mod but unfortunately I dragged my feet long enough that now this specific light is no longer available. Word from the vendor is a new and improved version is "on the way" but no ETA at this point....I'm searching for other options; tired of taking my eyes off the road to check RPM
Just as a FYI.
all the wires described in this excellent writeup, can be found in the back of the audio system for cleaner installation.
no need to risk punching the wrong wire on the ECU.
It auto-dims, and you can also set the baseline brightness. Not an issue...
FYI, is a pretty old thread (over six years!)
The original
Shift-i became unavailable quite some time ago, but has since been replaced with the Shift-
P2 which has even more functionality...
https://ecliptech.com.au/shift-p2/
This is a source reference. Confirm exact model applicability in the original material.
