Hi

Above car has erratic idle and slight misfire. Generally drives ok in higher ranges with full pulling power.

 

EML comes randomly on with P0302 code (Cylinder 2 misfire) and sometimes the Electronic Stability Control light as well. Changed plugs  (long life) and leads but made no difference. Put a new coil pack on but it made no difference so have returned to the original one. I thought it was coil pack as 2 of the pins looked a bit corroded on original coil pack and 2 were bright shiny. Unless of course the new coil pack was faulty but unlikely I guess.  Compression test is all fine.

 

Any ideas what is likely to be the cause. Could it be an injector and is there a way to check the injector.

 

Appreciate any help.

 

Just wondering if anyone has any thoughts on this query. Appreciate any advice.

Best not assume anything. eg coils, leads, and what plugs are fitted, yes long life, but that is not always 65,000 miles like some say, not even 40,000 sometimes.

 

?

How many miles on the car / engine?

A mechanic that can be hands on with the car is going to be more use maybe than anyone here guessing, or maybe even a main dealer tech / fitter.

 

EDIT.

Relevant in as far as info on past issues.

http://briskoda.net/forums/topic/496926-octavia-12-tsi-2011-petrol-camshaft-sensor

 

Edited 14 July, 20232 yr by toot

Many thanks for reply.

Car only has 80k km now. It has a timing chain kit and head rebuild at 65km (2 years ago) when it broke a chain and bent valves. Really strange as always serviced on time. Has driven well for 2 years since head rebuild and just developed this issue.

Sorry not sure if you meant brand of plugs and leads fitted. These were only done 2 weeks ago. Plugs are Bosch and Leads are Intermotor. Coil was also Intermotor but motor factors took it back when it didn't make a difference.

Just to rule out a faulty coil pack, I got another new one NGK but again it made no difference.

 

Also poured a drop of redex in cylinder and left to soak and treated fuel tank as well. So far no difference evident.

 

Whilst driving today EML came on (as before P0302) but so too did the TCS light. 

 

Really struggling where to next. Appreciate any thoughts.