lthomsen
Member
Hi.
Car: Skoda Fabia Mk2 (5J)
Engine Code: BSW
I am currently having some problems with high revs on start up and hope that someone might be able to help.
Previously the engine would start at 2000rpm and go very unsteady when cold – tapping the throttle once would stable the revs around 900rpm. I replaced the coolant temperature sensor and haven’t seen this exact issue since.
Now when I start the engine the revs sometimes go to 1000-1400rpm and sometimes is starts in “normal” condition around 900rpm. The high revs seem to be random i.e. it doesn’t depend on the ambient temperature or engine temperature. It doesn’t help to turn off the engine and turn it on again.
I’m not sure if this could be related to the previously “cold start (2000rpm) problem”. Also I’m almost certain that the “random rpm problem” have been present all along, but have gone unnoticed because of the “cold start problem”.
I have been scouting the internet for a solution and among other possible solutions I read that the fuel shut-off solenoid on the injection pump could cause something like this. Not sure if this could be related to the issue.
Any help is appreciated.
Car: Skoda Fabia Mk2 (5J)
Engine Code: BSW
I am currently having some problems with high revs on start up and hope that someone might be able to help.
Previously the engine would start at 2000rpm and go very unsteady when cold – tapping the throttle once would stable the revs around 900rpm. I replaced the coolant temperature sensor and haven’t seen this exact issue since.
Now when I start the engine the revs sometimes go to 1000-1400rpm and sometimes is starts in “normal” condition around 900rpm. The high revs seem to be random i.e. it doesn’t depend on the ambient temperature or engine temperature. It doesn’t help to turn off the engine and turn it on again.
I’m not sure if this could be related to the previously “cold start (2000rpm) problem”. Also I’m almost certain that the “random rpm problem” have been present all along, but have gone unnoticed because of the “cold start problem”.
I have been scouting the internet for a solution and among other possible solutions I read that the fuel shut-off solenoid on the injection pump could cause something like this. Not sure if this could be related to the issue.
Any help is appreciated.
Last edited: