eberhardfox7
Skoda Superb engine running rough
Summary of the thread
A 2003 Skoda Superb with a gasoline engine was experiencing rough running, stalling at idle, and jerking during acceleration, with the check engine light on. The suspected cause was a defective fuel pressure sensor, possibly due to a faulty cable or plug connection. It was confirmed that the sensor and cable connection were indeed faulty, and after replacement, the car ran smoothly again.
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4 comment(s)
eberhardfox7 (community.author)
I haven't checked the readings myself with a scanner, as I do not own one. However, I did notice that the fuel consumption seemed higher than usual these last days. Do you think the defective cable connection could be causing the sensor to send incorrect data to the fuel injector?
jamesschulze9
Yes, a faulty connection is a very likely culprit. It can cause the sensor to provide erratic readings, messing with the fuel injector and causing all sorts of problems like rough idle, stalling, and jerking. Given the symptoms and your suspicion, I'd suggest getting it checked out by a mechanic, especially the wiring harness and the sensor itself. It might be a simple fix, but best to be sure.
eberhardfox7 (community.author)
Thank you for the insight. It seems you were right. The workshop identified a defective fuel pressure sensor, and the cable connection was indeed faulty. Repair, including the sensor replacement, came out to 95€. The car is now running smoothly again.
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SKODA
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SUPERB
jamesschulze9
Sounds familiar. I had a similar issue with my Skoda some time ago. Rough idle and engine stalling can definitely be related to the fuel pressure sensor. Have you checked the sensor's readings with an OBD scanner? Also, are you experiencing any noticeable decrease in fuel economy?