I have ended up making my own. It's driven by a combination of needing the tool right now, and me just being cheap, and me wanting a tool for the correct application.
For all MetriPack 150.2 pull to seat connectors - The terminals PUSH out of the connector, out the front. This also includes the terminals in the EV1 (standard) fuel injector connector. First pry out the rear rubber seal. Then push the release tool up the butt of the connector. You have to figure out which side of the terminal the tang is on. Then once you get it far enough push both the tool and the wire of the terminal and it will push out forward.
The tool looks like this. It is made out of a "standard thickness" hose clamp. For this tool, the prong needs to be long enough to go all the way through the connector. It also needs to be ground thinner than the standard thickness hose clamp. Once you get the tool to the correct shape and size it works really well.
For MetriPack 150 terminals with individual seals a slightly flattened paperclip works well. MetriPack 150 sealed connectors can be identified as having a secondary clip on the back side. Make a few of them so when you lose one you have a back up. Just a few hammer strikes to slightly flatten the wire. Then bend the 'handle' at a 45 so it comes up so it doesn't just like flat when you want to pick it up.
To remove these, remove the plastic secondary retention clip. Then push the 'tool' up into the slot above the terminal. Pull gently and the wire comes right out. If not, you most likely didn't push the tool up far enough to unclip the tang.
For WeatherPack, I broke my professional tool, but I had an old telescoping antenna that I put into service. The piece of tape shows how deep the tool needs to be inserted to disengage the tangs. I haven't broke this one and I feel it works better than the professional tool did.
For MetriPack 150 & 280 unsealed this tool works best. That would be for all the terminals in C203 and C500
Not mine since mine is missing the Weatherpack end.
For C500 - DO NOT FORGET - You have to remove the secondary pin retention fork before you can get any of the terminals to pull out. The secondary fork inserts in the side of the connector and many times is buried in gunk so you can't see it.
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For this type of ECM plug I made this tool to remove the pins.
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GT150 - Identified with the purple connector. Usually the purple nose piece needs to be removed from the connectors face first. Then remove the terminals.
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Edit - I have yet one more that I use to depin the Fiero / 7730 ECM connectors.
I also use a T shaped stick pin to depin 3800 relay sockets, and OBD2 connectors. These use a plastic tang that inserts into the metal terminal. You have to retract the plastic tang with the stick pin to remove the terminal.
[This message has been edited by phonedawgz (edited 05-06-2013).]