The so called microcontroller, is actually a LM2902N "Quad Op-Amp". There for it's a simple discrete logic chip. Not a Microcontroller or CPU. I drive a 1995 Econoline E150, and it uses this same board, sadly I discovered after I had bought the van, that this little board was completely missing for me, but if I had some Schematics for it, and all the Resistor, Capacitor values, and If I knew was kind for transistor, and Diode it had On it, I could literally make my own replacement board. BTW, that resistor you replaced, on my board, according to a schematic I found online, says that the R1 resistor is supposed to be a 1 kilo ohm resistor. Color code Brown, Black, Red, with a Gold Tolerance stripe. The only thing I can't recreate is the Contacts that Ford used to connect this board to the gauge cluster circuit. though I could probably run Jumper wires to the appropriate connection points.
Everything worked fine once repaired. The entire point of this module is to create a really slow response to the sending unit level. If you read it live it would just fluctuate all over the place. I did a sweep on it by triggering an empty signal and then immediately input full signal. Was about a 9 second delay for it to reach full. So it worked well
@@kitt199546 no problem. Been working a ton, but hopefully several new videos to add this summer. Like and subscribe, gets me motivated to make more lol
@@sinewavespecialties2373 I finally got the resistors in from Radio Shack, and I think I got the wrong ones as they are waaaay to small in size. Their part number is 2710007 2.2kohm 1/8 watt Gold RED RED RED. Any clue what part number you got?
@@kitt199546 here’s my suggestion. Don’t go hunting for parts. I work in the nuclear industry and the only place to shop parts is Digikey.com and Mouser.com. You will never get a better selection and the quality is as specified. Even the radiation alarm modules are repaired with verified mouser.com parts. That should be a huge help for you if you didn’t already know about the site.
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The so called microcontroller, is actually a LM2902N "Quad Op-Amp". There for it's a simple discrete logic chip. Not a Microcontroller or CPU. I drive a 1995 Econoline E150, and it uses this same board, sadly I discovered after I had bought the van, that this little board was completely missing for me, but if I had some Schematics for it, and all the Resistor, Capacitor values, and If I knew was kind for transistor, and Diode it had On it, I could literally make my own replacement board. BTW, that resistor you replaced, on my board, according to a schematic I found online, says that the R1 resistor is supposed to be a 1 kilo ohm resistor. Color code Brown, Black, Red, with a Gold Tolerance stripe. The only thing I can't recreate is the Contacts that Ford used to connect this board to the gauge cluster circuit. though I could probably run Jumper wires to the appropriate connection points.
This is why I like RUclips. Somebody somewhere has the info eventually. Thanks @meganfoxx426
You replaced the resistor but didn't put the board back in the cluster to see if the gauge was working again. I hate when people do videos like this.
The car wasn’t in my possession. Do you not know what a gas gauge looks like or do you want the VIN number to look it up?
How did the resistor work for your car? Or did you have to replace it again...
Everything worked fine once repaired. The entire point of this module is to create a really slow response to the sending unit level. If you read it live it would just fluctuate all over the place. I did a sweep on it by triggering an empty signal and then immediately input full signal. Was about a 9 second delay for it to reach full. So it worked well
@@sinewavespecialties2373 THank you sir. Really appreciate it.
@@kitt199546 no problem. Been working a ton, but hopefully several new videos to add this summer. Like and subscribe, gets me motivated to make more lol
@@sinewavespecialties2373 I finally got the resistors in from Radio Shack, and I think I got the wrong ones as they are waaaay to small in size. Their part number is 2710007 2.2kohm 1/8 watt Gold RED RED RED. Any clue what part number you got?
@@kitt199546 here’s my suggestion. Don’t go hunting for parts. I work in the nuclear industry and the only place to shop parts is Digikey.com and Mouser.com. You will never get a better selection and the quality is as specified. Even the radiation alarm modules are repaired with verified mouser.com parts. That should be a huge help for you if you didn’t already know about the site.