Speedometer restarts while driving and engine has a power gap?
Hello. As I wrote in the title, I've been having a problem while driving recently: my speedometer just goes off (usually when accelerating quickly, especially from a standstill) and then immediately comes back on again (see video). When I accelerate (regardless of whether it's in gear or not), it doesn't respond for a short time. However, if I'm in gear and the car is just rolling (regardless of speed), there's no power gap. It just doesn't respond to the accelerator while the speedometer restarts. Also, the fuel gauge changes every time.
Anyone have any ideas? It's a Hyundai Coupe GK, by the way.
(2 votes)
Loading...
Is it more common with Hyundai, here it is extensively reported and discussed about such problems, maybe you read it all through:
https://www.hyundaiboard.de/thread/5805-outputer-tacho-speed meter-bordcomputer/
Personally, I suspect an error in the power supply of the combination insulation…. ground fault, plug/connection loose, plug no fixed seat, ….! the minus lines (often in brown) is very suspicious of it !
Because it is very unlikely that at the same time 4 sensors (speed, temperature, tank, speed) fail.
Good luck!
Puh, have the 14 pages now. Wanted to start the car in the morning, take the tacho out (connected) and push the cables. In the hope that the mistake will come. I’d say the cables have one gone. Otherwise, I read crankshaft sensors. I just picked up a used one from a colleague, but I didn’t solve the problem either. So is not at the speedometer unit
Puh, … yes much to read!
Even if the used combination kit shows the same error, then a whole piece is going on with the error analysis.
You wrote that the gas pedal does not accept any gas at this moment or at least reacts strangely/otherly.
If such many components “spin”, it must be something central, which all electronic components have or use together. This is:
This confirms that somehow the brown mass line or mass band has no right contacts. That is to say, check the screw connections and connections of the brown ground lines. The minus pole in vehicles is the entire body!
Tip:
As a result of the cabling/plug that goes away from the gas pedal (cable tree), since where the brown vein runs, there I would suspect the mass error (the gas pedal itself is ok)
This can be measured with a voltmeter:
If the voltage is measured between the minus point of the battery and the ” alleged” minus point of the combination instument, the constant 0 V (volt) should be. If at the moment of the fault suddenly a voltage of 0.5 V or more appearance, it is definitely a mass error.
The engine block also has a mass band, perhaps this is scraped (corrosion on the screw connection is often there!). Because the sensors of the engine also use mass (= minus pole=the engine block).
PS:
If you don’t get any further, you can go to a BOSCH workshop, these are top specialists in vehicle electronics (BOSCH is manufacturer of vehicle electronics!), who find such mistakes more, is their daily bread!
Good luck!