Engine jumping

[RodgerD]

I just had the egr valve replaced as it was fully clogged and the car was loosing power.
Since it was replaced the car is driving fine but when it's idling over there is jump in the engine, this issue is more prevalent when the engine is cold, there is also a feeling of split second loss of power when driving. 

What should I be looking at now?

[brajomobil]

What engine? Blingo year?

Check MAF sensor. Clean it with carb cleaner.
Find tutorial on youtube. Don't clean with brush!

Best regards,
brajomobil

[ffrenchie]

What engine? Blingo year?

Check MAF sensor. Clean it with carb cleaner.
Find tutorial on youtube. Don't clean with brush!

Best regards,
brajomobil

Only method I have found with MAF sensor is to throw the old one in the bin and replace with a new one. It will run better with the sensor disconnected if you want to try it to make sure it is that. It didn't show any engine fault on our car either.

[Trevor]

As your problems started when the egr was replaced I would start with that. Check all connections and that all is tight.

[brajomobil]

What engine? Blingo year?

Check MAF sensor. Clean it with carb cleaner.
Find tutorial on youtube. Don't clean with brush!

Best regards,
brajomobil

Only method I have found with MAF sensor is to throw the old one in the bin and replace with a new one. It will run better with the sensor disconnected if you want to try it to make sure it is that. It didn't show any engine fault on our car either.

MAF has it's life time. I agree the best way is to replace but before you spend 100$ you can try to clean it.
You will notice difference. If there is difference go and buy new one. If not than MAF is not the problem.
The above method is 80% correct. Disconnecting MAF sets engine ECU into another mode. No MAF mode.
That mode of operation can be misleading. No MAF mode is not the same on all engines. On some engines
you will have "check engine" on some you will not. That depends on manufacturer.
The only solution of testing MAF is with oscilloscope. All other methods are not exact and can be misleading.

Best regards,
brajomobil

[RodgerD]

Thank you, it's running smoother now with some engine cleaner and few long runs but it's still there occasionally. The car is a 2008

I'll look into MAF

[polar]

Okay Rodger we are getting there its a 2008 so im guessing its a 1.6hdi?

How many miles has it got on it?