I haven't really updated this in a while. The family and I have been taking the Skylark to a Sunday cars and coffee car show that happens every other weekend and been wanting to take the Firebird but it didn't have any rear seat belts so was a no go. Fortunately Summit Racing is right down the street getting a set of universal seatbelts wasn't a problem, but the bolts were a bit back ordered. Finally got them all installed about a month ago.


Then this weekend was going to be the moment of truth and we were going to go to the car show in the Firebird.... Almost.

So starting Friday night, even after putting a new transmission pan gasket and rtv in it, and even letting it sit for 24 hours before putting fluid in it, it still leaks a fair amount of fluid so I wanted to jack it up and slightly tighten all the pan bolts and wanted a working surface in the backyard until I save up for some dirt work and concrete so.... For about $100 I now have 64 square feet of working area on the gravel. Still seems to be seeping a bit, time will tell if snugging them helped at all. I'm getting ready to put the 4L60e in it and am going to simply get a Microsquirt controller for it. In the mean time, I've pulled the 4.56 gears out of storage and am thinking of putting them in sooner rather than later.
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Then Saturday morning.... Since it was a car show we were going to the next day I thought I'd clean up some wiring under the hood and then go get it washed, and be ready for the cruise. Well..... The wiring I was cleaning up I decided to move the water pump relay and shorten up the wires, well I apparently got two wires crossed and when driving to the car wash the engine got hot so I pulled over to troubleshoot. I could smell electrical burning in the car, not good, and the water pump wasn't running. It also popped the 15amp water pump fuse so yanking some wire connectors off and hotwired the water pump to the battery which cooled down the engine quickly but strangely the fan stayed on. BUT, it still fired up and everything on the screen was normal, so drove home to yank the Megasquirt out. At which point in time the Dog thought he was going to go for a ride, d'oh!
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And now the carnage. Opened the Megasquirt and the INJ outputs were toasted, particularly the one the water pump was hooked to was completely vaporized away. If you've read through this thread, you may recall when I first got the Firebird running I toasted the Megasquirt's power circuit when I mis-wired the alternator to the wrong side of the cut off switch, and that white wire down by the exposed copper was a jumper lead I had to put in from burning out the connection in the board.
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This resistor (R20) was toasted.
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Looking at some troubleshooting schematics, R20 is part of the INJ1 circuit, which is what I had the water pump wired to.
[url="https://www.diyautotune.com/support/tech/other/troubleshooting-ms-injector-driver/"]https://www.diyautotune.com/support/...jector-driver/[/url]


So I had another Megasquirt board I've scavenged parts off of before (such as the power circuit when I toasted the one here), so thought I'd could just take a few pieces off, maybe make a jumper wire or two and be back in action....
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But after transferring the resistor and doing some other continuity checks, something else was shorting the INJ outputs to ground and I'm not sure where. SO I began transferring parts from the burned out board to my spare parts board until it was complete! Look Ma I put the smoke back in! A new board from DIYautotune.com is $219.


Back together with the new "old" board.
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Now Sunday morning.... Re-wired the relay, triple checked it was wired correctly, and plugged in the Megasquirt, and success! The water pump cycled on and off as it was supposed to, so off to go get it washed.
[url="https://www.facebook.com/randal.burns.3/videos/10211918502611604/"]https://www.facebook.com/randal.burn...1918502611604/[/url]

Then apparently the car show location changed at some point between 7pm Saturday night and Sunday as went we arrived there, no one was there and I checked the Facebook page and it had an "Alternate" meeting location that I didn't want to drive 30 minutes more too. So we decided to go have the coolest car at the Wilbur May Arboretum. Put 40 miles on the Firebird today in 80ºF weather, mixed freeway and surface street driving and it ran flawlessly. So I'm going to call that a win.
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