Never heard of a Noid Light. I will look into that and pick one up.
A side question that I can't seem to find info on. When swapping chips to burn, do I need to disconnect the battery every time or can I just remove the fuse to the ecu?
Never heard of a Noid Light. I will look into that and pick one up.
A side question that I can't seem to find info on. When swapping chips to burn, do I need to disconnect the battery every time or can I just remove the fuse to the ecu?
Noid light kits,
https://www.rockauto.com/en/moreinfo...001027&jsn=328
https://www.rockauto.com/en/moreinfo...001027&jsn=330
I am 99% sure pulling the fuse is just like key off. I always unplug computer for a couple mins(or disconnect battery) to clear any ram stored in the ecu.
-Carl
I've been lucky several times swapping chips with just the ignition switch "OFF". It's a personal risk factor, so how do you really feel about swapping chips with (Battery +) ~ (Battery -) still connected to the computer? Electrons are lazy, they take the path of least resistance.
I learned long ago the basic rule about how everything electronic is smoke powered, DON'T LET THE SOMKE OUT of electronics.
The chips run on magic smoke, if you let the smoke out, no more worky
Yepper, plenty of times I will just swap a chip with the key off. The emulation stuff can get a bit weird at times though. The clearing ram thing is mainly if things have gone fubar. If I can, I pull the + cable and hold it to the negative to drain everything quicker.
-Carl
Ok thanks the replies. Ill pick one of those kits up and try it out. Ill probably also just pick up another PCM too because even if I get the original going, I have some other trucks with the 7747 that could use the newer computer.
Yea I'm surprised I haven't seen many people mention anything about taking power off the ecu in chip swapping related threads. Must not really be a problem.
You know, I sent bags of that stuff to Doc and the little guys at CSH HQ. Not sure if it helped them get their 747 off the ground but I'm sure they had fun trying.The chips run on magic smoke, if you let the smoke out, no more worky
I am still waiting for the Noid light in the mail, but I have been trying other things to get a better idea what the most likely culprit is. I purchased a used 7427 to try that in the event that was the issue and if it wasn't then it would go in another truck to upgrade from a 7747. Tried the new computer/memcal and no change, put the Megasquirt setup back on and again both injectors spray away with a good pattern as far as I can see. I put the original PCM back in and swapped the wires to the opposite injector and same issue except that the "bad" injector now started working intermittently, mainly when I blipped the throttle and sometimes when it's about to die it will start spraying and rev up making a surge. When it does spray, it looks like I can see some dripping inside the cone of fuel.
I'm starting to narrow in on the one injector needing replaced or cleaned, but the puzzling thing is why does it work with my Megasquirt setup? The only thing I can thing would be if the Megasquirt along with my 6 ohm power resistors are delivering enough amperage to open the dying injector.
I was looking and I've seen people recommend MrInjector.com to clean and flow injectors, has anyone had experience with them or know of a reputable cleaner?
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