I have a 1997 felicia 1.6 which idles roughly and almost dies when i press the clutch at lower rpms. I had a 01249 code for fuel injector 1 open or short to ground. My temp gauge wasnt working so I thought that code is because the engine is running rich because of faulty coolant temperature sensor. So i replaced the CTS and now the gauge works and stays in the middle. I also cleared the code and cleaned and reset the throttle body with vag com. The problem with rough idling and stalling came back after around 15 kilometres. I also looked if the computer is receiving the right temperature value from CTS and noticed that in vag com the air intake temp was actually showing the coolant temp and the coolant temp was showing 27 degrees which i think is air intake temp probably (you can see in attached photo that the values are switched). The car was warm and the screenshot was taken while driving so thats why the rpms are on 2000. How is it possible that the values are switched or is that normal? Also when I have the ignition on with engine off, there is a whining noise coming from the throttle body. The gas pedal cable has freeplay so that isnt the problem. Is it posibble that the throttle body is also faulty? The car otherwise runs fine. Sorry for the long post and thanks for the help!

4 hours ago, matej2212 said:

How is it possible that the values are switched or is that normal?

Reversed position of the CTS connector? Yeah, it has a key but can be put reversed.

Also you might want to buy a new combined MAP sensor & intake temp sensor. Cleaning it doesn't help anymore.

Edited 1 May, 20206 yr by RicardoM

Thanks for the answer. The CTS is plugged the right way, but if it was reversed probably the gauge would show wrong value. Now the gauge and the air intake temp are showing the same temperature. Is it possible that the previous owner somehow messed up and changed this two things with vagcom. That seems unlikely but how can the values be switched, I don't understand.

Why do you think the MAP sensor is bad, isn't the temperature of 27 degrees possible and the values are just changed as mentioned? Any recommendation is really appreciated!

I can't know if the wiring is messed up. You have full access to the car.

As for the MAP/ITS sensor, I recommended changing it with a new one because you told us that after cleaning it the problem returns in 20 km.

The wiring looks stock, so that isnt the problem probably (hope not). Oh, so you think the map sensor is the problem? But that still doesnt explain why would the temperature gauge show 90 degrees, and the coolant temp in vagcom 27 degrees.

I reset the throttle body again and went for a ride, and noticed that if I have just one group open at a time, the coolant temp and air intake temp show correct value (coolant 90 degrees, air intake 25 degrees) so that is probably a software problem with vagcom. So CTS and ITS probably arent faulty. Lets focus now on throtlle body whine. Is it normal that it whines like that with ignition on and engine off? I attached a video.

 

It looks like the throttle body has an electronic fault. Can't point out exactly what is wrong with it but that whining sound is clearly not normal. Since you probably would have told us if there was an ECU error related, I guess you need a new TB.

Thanks again! I will try replacing the throttle body then. Do you think that faulty throttle body can cause the 01249 "fuel injector 1 open or short to ground" code?

 

Not related.

throttle bodies for fellys are crazily expensive I would sugest to remove it and open the electronic side of it and check gears and stepper motor

12 minutes ago, Thefeliciahacker said:

throttle bodies for fellys are crazily expensive I would sugest to remove it and open the electronic side of it and check gears and stepper motor

Yeah I watched some videos on youtube about that. But what can I do if the motor is whining or the gears are worn out? Do they sell the gears of the throttle body separately?

54 minutes ago, matej2212 said:

Yeah I watched some videos on youtube about that. But what can I do if the motor is whining or the gears are worn out? Do they sell the gears of the throttle body separately?

You will have to improvise. 

I suspect it is a limit switch issue. 

Open it and post photos here or pm me. And I will help you through the process. In the end you have nothing to loose. 

Edited 2 May, 20206 yr by Thefeliciahacker

Ok, I will try and get some photos on here probably tommorow, thanks.

33 minutes ago, Thefeliciahacker said:

I suspect it is a limit switch issue. 

Nope.

11 minutes ago, RicardoM said:

Nope.

Can you please elaborate on this. 

The so called idling switch F60 throws an ECU error (00516) if it is faulty in any way.

The whining noise goes away for a second when i reset the throttle body with vag com. Does that mean something? It is probably the stepper motor then as it moves when reseting. Anyway, will look into it and post some photos.

here is the picture

i also measured the resistance of the coil, 2 wires in the bottom left, and it was 0,3 or 0,4 ohms, is that ok?

I gunienly can't see any problem. 

If you connect it as is open and turn the key on run position you should notice the thing adjusting. It may be a simple mechanical fault such as the shaft being free from the gear. 

It doesnt adjust when I turn the key on, as I would hear it adjusting, but the whine is the same all the time with key on. It is also strange that it idles and works perfectly for about 20km after reset and then the issues return. But the whine is always present excepct for a couple of seconds when its reseting.

have you located the whine, i suspect it is a stepper motor on its way out

4 minutes ago, RicardoM said:

well that seems like a damaged brushed dc motor (not a stepper motor as i've said),
if thats the case the throttle body can be saved much more easily

I found a used throttle body in a scrapyard for 5 euro and put it on and it whines the same. I know it can be bad in the same way as mine, but probably it isnt. Is it possible that the computer is sending some false data to the throttle body and the motor tries to spin in some strange way that makes it whine? Can some sensor that sends data to throttle body be bad?