Engine issues

[H Rafiq]

Engine juddering on n off during idle, and revs dropping slightly during juddering. Any idea what this could be? Had a service at Seat about 6 months ago, so sparks plugs, filters etc. replaced then.

 

[BigJase88]

Ignition coil

 

[H Rafiq]

Any advantage on using Vagsport coils vs standard coils?

 

[BigJase88]

Any advantage on using Vagsport coils vs standard coils?

I wouldn't of thought so


If you use something like Carista to read the fault codes. Hopefully shows which cyclinder has the missfire. Then just change that ignition coil.

I'm assuming your spark plugs are good as you say you have recently had them changed

 

[H Rafiq]

I wouldn't of thought so


If you use something like Carista to read the fault codes. Hopefully shows which cyclinder has the missfire. Then just change that ignition coil.

I'm assuming your spark plugs are good as you say you have recently had them changed

It’s not all the time. Every now n then during idling the engine will judder and revs drop slightly, then back to standard idle revs n no judder.

 

[SRGTD]

@H Rafiq - as @BigJase88 has said, scan for fault codes, otherwise you could spend time and money on replacing / fixing things that aren’t the cause of this issue.

 

[H Rafiq]

In the engine, I’m getting these 4 fault codes:

 

[BigJase88]

In the engine, I’m getting these 4 fault codes:

View attachment 35782View attachment 35783

So camshaft position sensor seems to be the issue

Reset codes and see what reappears

 

[H Rafiq]

These same codes reappear. Tried clearing the codes a couple of times.

 

[BigJase88]

These same codes reappear. Tried clearing the codes a couple of times.

So you have 2 errors. Exhaust flap motor and camshaft position sensor.

Change camshaft position sensor 1st as it should be pretty straight forward

 

[H Rafiq]

Okay. I’ll get the replaced. It’s this isn’t it:

??

 

[SuperV8]

Okay. I’ll get the replaced. It’s this isn’t it:

View attachment 35784
??

As it is an intermittent fault, first I would pull the connector off and 'give it a wiggle' and push firmly back on so you hear it click - just to double check the connector.

 

[H Rafiq]

Update. Removed old sensor as advised, and replaced with new sensor. This was the old sensor:

Very oily, and some white crap too. How’s oil got in there? Seemed like a tight, flush fit part. Quite hard to remove actually.

 

[BigJase88]

Probably a quick clean and it would of been okay.

However nice new one should hopefully run sweet now

 

[H Rafiq]

Probably a quick clean and it would of been okay.

However nice new one should hopefully run sweet now

I have cleaned the old one n it looks fine. I’ll keep it just in case.

 

[ST33LY]

Engine juddering on n off during idle, and revs dropping slightly during juddering. Any idea what this could be? Had a service at Seat about 6 months ago, so sparks plugs, filters etc. replaced then.

Does it do this on a cold start?

 

[H Rafiq]

Does it do this on a cold start?

Both, on cold start and warm start.

 

[ST33LY]

Both, on cold start and warm start.

Have you tried replacing the MAP sensor? This can cause juddering. It’s a common fault with the 280s

 

[H Rafiq]

Have you tried replacing the MAP sensor? This can cause juddering. It’s a common fault with the 280s

No. I haven’t had any fault codes relating to the MAP sensor