Hi guys!

 

I have an interesting issue with my 1999 1.8t AGU octavia (cable operated throttle). Sometimes (let's say once every 14 days..) my car after accelerating in a higher gear(4th and 5th mostly) from lower speeds start stuttering, losses almost all power and if you release the throttle it stalls completely. If i restart the car, everything runs fine!. So i guess it's an electronic issue but a sensor which doesn't log error when temporarily faulty??

 

I checked for fault codes...nothing. I changed fuel filter and crankshaft sensor, still no change.

 

I have two suspects:

1. MAF

2. CamShaft sensor

3. Vacuum leak?

5. PCV?

 

interestingly if i unplug the MAF while the car is idling, nothing changes, car runs fine but when i plug it back it stalls. If i add a little throttle while plugging back the MAF, it will keep idling normally.

I disconnected the TPS sensor and the car doesn't stall, just a little higher idle. So i guess the TPS can't cause stalling??

 

Any help appreciated!

 

Thanks!

 

Can, please an admin change the title to Octavia Mk1 1.8t-->Stalling issues?

 

I tried immediately after posting but i can't see any Edit button...

I had something similar.... in my case it was the MAF. 

I just cheated and bought a cheapo one from a well known auction website and it restored the car back to normal.  I'm sure being a non oem part it will break or not be quite as accurate as an original part  but it seems fine for now. 

Edited 21 April, 20197 yr by Blueb4sunrise

If non oem, it will last less than 6months and stop working..

 

Go dealer or TPS (if you can) and get a genuine one thatll do you for a long time

 

HI

Thanks for the info. For now i've changed the ignition spark amplifier, this part

...it resides on the airbox. The previous owner did a half assed job with it and it was not attached to the cooling fins (one bolt was broken off). If the symptoms appear again the next on the list is the MAF as you all suggested.

 

For now the car runs perfectly, quite a lot better after i replaced the part mentioned above....

Edited 21 April, 20197 yr by axaQ4