How to - Convert The Stock Boost Gauge To A Stock Voltmeter
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Topic author - Posts: 4966
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How to - Convert The Stock Boost Gauge To A Stock Voltmeter
After much research into this topic, I have decided that it would be worthwhile to collate the information I have found into a simple "How To" guide that can be stored in the "Know Your 2" section to save anyone else having to hunt high and low for the same information.
If, like myself, you have decided that by fitting an after market boost gauge, the stock one in the dash become rather redundant, you may wish to carry out this mod to install a stock voltmeter from a naturally aspirated car. I have tried to put this method together as this can the be undone at a later date should you wish to revert the car back to stock.
You will need...
1. Phillips Head Screwdriver
2. Short Length Of Wire, about 20mm long, stripped at both ends
3. Stock NA Voltmeter
4. Soldering Iron and wire
First step is to remove the speedo cluster. Now I could rewrite this but there is a fantastic guide in the Know Your 2 section already found here
http://www.mr2oc.co.uk/know-your-2-know ... bartid=238
Once they are out, you need to gently pry off the clear screen and the black bezel to access the clock. Take care separating these apart as the tabs can be fairly brittle.
Next step is to undo the 2 screws holding the boost gauge in place followed by the rev counter. This will expose the PIM circuit board required to control the boost gauge. Be careful when doing this as you do not want to damage the printed circuit film.
Unscrew the board from the dash cluster by removing the 4 screws in the rear of the dash. The circuit board will then unslot from the dash plastics
Looking at the back of the board (looking directly at the screw holes) from the left you need to solder the length of wire between the second and fourth pins. What this does is bridges the SE port on the Rev counter directly to the Voltmeter.
Reinstall the PIM board, only securing the 2 pins you have bridged
Take the new voltmeter and secure it into place using the 2 screws removed when taking the boost gauge out. Then reinstall the Rev Counter using all 3 screws
Reinstall the plastic bezel and screen and the conversion is complete
The beauty of this conversion is that should you wish to reinstall the boost gauge, the bridge can be removed on the PIM board, all 4 screws replaced on this board and the voltmeter replaced with the boost gauge.
Hope this helps
If, like myself, you have decided that by fitting an after market boost gauge, the stock one in the dash become rather redundant, you may wish to carry out this mod to install a stock voltmeter from a naturally aspirated car. I have tried to put this method together as this can the be undone at a later date should you wish to revert the car back to stock.
You will need...
1. Phillips Head Screwdriver
2. Short Length Of Wire, about 20mm long, stripped at both ends
3. Stock NA Voltmeter
4. Soldering Iron and wire
First step is to remove the speedo cluster. Now I could rewrite this but there is a fantastic guide in the Know Your 2 section already found here
http://www.mr2oc.co.uk/know-your-2-know ... bartid=238
Once they are out, you need to gently pry off the clear screen and the black bezel to access the clock. Take care separating these apart as the tabs can be fairly brittle.
Next step is to undo the 2 screws holding the boost gauge in place followed by the rev counter. This will expose the PIM circuit board required to control the boost gauge. Be careful when doing this as you do not want to damage the printed circuit film.
Unscrew the board from the dash cluster by removing the 4 screws in the rear of the dash. The circuit board will then unslot from the dash plastics
Looking at the back of the board (looking directly at the screw holes) from the left you need to solder the length of wire between the second and fourth pins. What this does is bridges the SE port on the Rev counter directly to the Voltmeter.
Reinstall the PIM board, only securing the 2 pins you have bridged
Take the new voltmeter and secure it into place using the 2 screws removed when taking the boost gauge out. Then reinstall the Rev Counter using all 3 screws
Reinstall the plastic bezel and screen and the conversion is complete
The beauty of this conversion is that should you wish to reinstall the boost gauge, the bridge can be removed on the PIM board, all 4 screws replaced on this board and the voltmeter replaced with the boost gauge.
Hope this helps
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Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
+1topgun wrote:Nice write up Jay
Highland Drive 13/14/15/17/18/19
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Topic author - Posts: 4966
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Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
Thanks guys....
May be useful for some after all
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May be useful for some after all
Sent from my HTC One X using Tapatalk 2
1993 Revision 3 Turbo - Restoration Underway
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Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
Nice
One question - why did you choose to solder on the PIM board when you could have made a short wire with ring terminals on each end and connected the tacho's SE screw to the lower screw on the voltmeter? Then you can just remove the PIM board and have it unmodified for if you want to reverse it...
One question - why did you choose to solder on the PIM board when you could have made a short wire with ring terminals on each end and connected the tacho's SE screw to the lower screw on the voltmeter? Then you can just remove the PIM board and have it unmodified for if you want to reverse it...
Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
Nice guide jay, and well worked out to!
Looks like a worthy mod!
Sent from my GT-I9300 using Tapatalk 2
Looks like a worthy mod!
Sent from my GT-I9300 using Tapatalk 2
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Topic author - Posts: 4966
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Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
Main reason was cleanliness. By adapting the board, I don't have any extra loops of wire than can be caught on the dash when I refit the cluster....
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Sent from my HTC One X using Tapatalk 2
1993 Revision 3 Turbo - Restoration Underway
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Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
Fair playMR2Jay wrote:Main reason was cleanliness. By adapting the board, I don't have any extra loops of wire than can be caught on the dash when I refit the cluster....
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I guess it depends what you consider "clean". I'd generally consider a single crimped wire is cleaner than solder on a standard circuit board, but I can totally see your POV too. I guess if I bought a car with this mod, I'd rather have an obvious wire showing the change than an invisible connection with two missing screws. Not that I can talk, given I have a random wire cut in my steering column that would flummox anyone trying to remove my quad headlights
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Topic author - Posts: 4966
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Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
Your selection of wiring mods would flummox most people Mr Shinn
For the record so it is clear, either method would work fine though
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For the record so it is clear, either method would work fine though
Sent from my HTC One X using Tapatalk 2
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Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
I can't possibly imagine what you mean?MR2Jay wrote:Your selection of wiring mods would flummox most people Mr Shinn
+1MR2Jay wrote:For the record so it is clear, either method would work fine though
If I didn't have my own custom smoked gauge in that spot, I'd ne following suit
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Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
I did this mod today.
Excellent guide Jay, very easy to follow. I couldn't get the solder to take to the top like you did, so I put a wire across the back of the board into the existing solder.
Alas, I forgot to take a photo....
Works perfectly, a great little mod for a tubby.
Cheers to gaz for providing the voltmeter :-)
Sent from my GT-I9300 using Tapatalk 2
Excellent guide Jay, very easy to follow. I couldn't get the solder to take to the top like you did, so I put a wire across the back of the board into the existing solder.
Alas, I forgot to take a photo....
Works perfectly, a great little mod for a tubby.
Cheers to gaz for providing the voltmeter :-)
Sent from my GT-I9300 using Tapatalk 2
Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
Lets get this in the know your 2.
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Sent from my iPhone using Tapatalk
Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
+1Gaz! wrote:Lets get this in the know your 2.
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Sent from my GT-I9300 using Tapatalk 2
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Topic author - Posts: 4966
- Joined: 20/03/08 11:45
- Years of MR2 Ownership: 10
- MR2's Owned: 7
- Real Name: Jay
- Gender: Male
- Location: Northampton
- Been thanked: 8 times
Re: How to - Convert The Stock Boost Gauge To A Stock Voltme
Glad it was easy to follow for you...
Haven't once regretted this. Once you have a decent aftermarket gauge, the stock one becomes redundant. I originally took this on as I felt the voltmeter was a worthwhile gauge to have in the cabin
I took a lot of care to try and write this up so it was easy to follow. Glad I succeeded
Sent from my HTC One X using Tapatalk 2
Haven't once regretted this. Once you have a decent aftermarket gauge, the stock one becomes redundant. I originally took this on as I felt the voltmeter was a worthwhile gauge to have in the cabin
I took a lot of care to try and write this up so it was easy to follow. Glad I succeeded
Sent from my HTC One X using Tapatalk 2
1993 Revision 3 Turbo - Restoration Underway