DIYPNP connection problem
#1
DIYPNP connection problem
Noob here , & haven't done electronics for 20 years so sorry if any stupid questions.
Just built up a DIYPNP for my 90 miata (eunos), it connects fine & have put a base map on it from my laptop. BUT when I plug it into the cars loom I cannot connect to it. I am useing tunerstudio, comms settings okay on mains power, when I crank the engine I get comms for a second or two before the screen greys again & not connected message appears.
I have checked the 12v from the loom and that is okay (12v, 10.5v when cranking) I have checked the same on the main board of the MS board and get the same voltages. Also getting good earths on the mainboard and the loom plug.
Any ideas folks?
cheers
Steve
Just built up a DIYPNP for my 90 miata (eunos), it connects fine & have put a base map on it from my laptop. BUT when I plug it into the cars loom I cannot connect to it. I am useing tunerstudio, comms settings okay on mains power, when I crank the engine I get comms for a second or two before the screen greys again & not connected message appears.
I have checked the 12v from the loom and that is okay (12v, 10.5v when cranking) I have checked the same on the main board of the MS board and get the same voltages. Also getting good earths on the mainboard and the loom plug.
Any ideas folks?
cheers
Steve
#7
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I just wanted to clarify. Is the unit working perfectly as far as you can tell when hooked up the 12V supply inside your home, but is shutting down intermittently when supplied power from the vehicle? If so, that means that the work between the mainboard and micorsquirt module is probably good.
So, I'd start by checking solder joints at the wire between 1C and +12V, and also at 4A, 4B, and ground.
So, I'd start by checking solder joints at the wire between 1C and +12V, and also at 4A, 4B, and ground.
#8
yes, but I would say it hardly connects when on the cars 12v, when tunerstudio says its disconnected in the car I can still get 12v on the mainboard though.
I am going to re solder all the joints between the adaptor board and the mainboard in a bit, I got the wires a little too long so want to tidy them up, will see what happens after that.
cheers
I am going to re solder all the joints between the adaptor board and the mainboard in a bit, I got the wires a little too long so want to tidy them up, will see what happens after that.
cheers
#11
Question like,
I had my USB/Serial working great until I had to uninstall it. There was a page that had setting suggestions for like best performance and I can't find it anymore. I've been getting disconnected and I think its because the settings aren't right. You guys know what I'm talking about? Where I can find it?
If y'all can help I Thank you.
I had my USB/Serial working great until I had to uninstall it. There was a page that had setting suggestions for like best performance and I can't find it anymore. I've been getting disconnected and I think its because the settings aren't right. You guys know what I'm talking about? Where I can find it?
If y'all can help I Thank you.
#14
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Location: atlanta-ish
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Cross posting for future reference...
On a different forum, the OP showed his wiring pin out where he hooked up VREF to the car. This will cause a short on a stock 1.6 manual trans miata. Don't hook up VREF with the stock TPS sensor.
On a different forum, the OP showed his wiring pin out where he hooked up VREF to the car. This will cause a short on a stock 1.6 manual trans miata. Don't hook up VREF with the stock TPS sensor.