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My Map sensor has a different connector than my speedo, They are definitely not switched, I dropped it off at a friends place, He owns a mitsubishi repair shop.
Speedometer not working
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I spoke to a tech guy and he said that maybe my AEM ground was putting out to much power. He said that it could be something in the software I could change that may fix it. Does anyone know what he could be talking about?
I'm getting about fed up with driving with a GPS system. I need my Speedo back!!!! it didn't start until after I put in the AEM
I'm getting about fed up with driving with a GPS system. I need my Speedo back!!!! it didn't start until after I put in the AEM
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Anyone know how to fix this issue or can guide me to the right source of information?
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Check for ground and power at the speedo sensor plug on the trans. It could be a short in the engine wiring harness. I just fixed a car with the same exact problem. It had no power at the plug.
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I took it to a shop and they said that the sensor was putting out a signal but then it would stop. I will check it though
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Thanx, but I've checked that as well. It's good, you can even see the gear spinning inside the tranny. Thanx for the input though
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Have you hooked up a laptop to the AEM and logged? It has a reading for vehicle speed..it would tell you if the AEM is recieving the signal.
Colin
Colin
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Probably a setting in your AEM... The sensor doesn't "make" a signal... It pulls the 5 volt reference supplied by the ECU to ground to generate a signal. If your speed sensor input for your AEM isn't supplying the needed 5v bias voltage, you will never get a signal.
If the 5v is there, then you need to check the 12v power and the ground at the sensor connector.
If the 5v is there, then you need to check the 12v power and the ground at the sensor connector.
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Thanx guys, those are two very good inputs. I'll have to try them and see what happens. I appreciate your time and your posts
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BUMP!! willing to pay for getting this fixed. Anyone?
I've checked the fuse, changed sensor, changed speedo unit (3 times) checked the gear inside of the tranny. Everything is good. Still not working, neither is the fuel gauge.
HELP!!!!!
I've checked the fuse, changed sensor, changed speedo unit (3 times) checked the gear inside of the tranny. Everything is good. Still not working, neither is the fuel gauge.
HELP!!!!!
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Thats a huge clue right there, Your ECS is part of your speedometer circuit. Pull the ECS computer and check for leaking caps. If they are leaking thats most likely the issue.
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Already suggested but never addressed in this thread: Does the yellow/white wire at the sensor connector have 5V present key on?
Agreed it needs to be checked, but it could just as easily be the ECS computer setting a code 24 for no VSS input.
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i think you said that you did it, but:
is it just the pin that sits on top of the transmission, near the slave clylinder, that has the screw type lid for the top.
last time i had my transmission off i managed to loose that little pin. finally i threw a little something in there and it worked. i cut a magnet to "about" the right size, and it works alright. by alright, i mean she flutters.
i dunno, maybe you already did that, good luck.
but really.. isn't it sort of nice to drive without exactly knowing your speed?
_isiah
pickled fish lips:]
is it just the pin that sits on top of the transmission, near the slave clylinder, that has the screw type lid for the top.
last time i had my transmission off i managed to loose that little pin. finally i threw a little something in there and it worked. i cut a magnet to "about" the right size, and it works alright. by alright, i mean she flutters.
i dunno, maybe you already did that, good luck.
but really.. isn't it sort of nice to drive without exactly knowing your speed?
_isiah
pickled fish lips:]
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You are talking about the actual sensor, I've already replaced that. Thanx. I'm thinking it's the ECS computer.
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any update as to what was the issue? im in the same boat with my speedo not working, and my ecs button doesnt work when i press it. should i jus disconnect the ecs?
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I have similar issue after installing the AEM. In my case I do see speedometer working but not the Tachometer.
Federico
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I'm leaning towards the ECU also, I've done everything else. I disconnected the ECS and that had no effect other than my ECS not working... I wonder if there is a setting in the AEM that is not configured correctly. Time to call AEM.
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I had this same exact problem with a dead speedo.
Did you check your old speed sensor to see if it had seized up? Mine did and the pin that goes into it had snapped. That is a metal pin and the gear that drives it off of the differential is plastic.
So.....If the sensor seized, the pin broke....there is a good chance the plastic gear is stripped and the differential is not being read by the gear. Pull out the gear and check the teeth on it.
But I have seen cases where the gear is okay and just the pin (metal) breaks.
Did you check your old speed sensor to see if it had seized up? Mine did and the pin that goes into it had snapped. That is a metal pin and the gear that drives it off of the differential is plastic.
So.....If the sensor seized, the pin broke....there is a good chance the plastic gear is stripped and the differential is not being read by the gear. Pull out the gear and check the teeth on it.
But I have seen cases where the gear is okay and just the pin (metal) breaks.
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