So, I am in a little bit of a situation with my Skoda Laura - the other day I was driving back home on my regular route via Atal Sethu and suddenly the check engine light started blinking along with EPC light and I started losing power but it did not turn off completely. Luckily I was only a few kilometres from my house and somehow made it to my apartment. I could not make out at higher speed but once I started approaching home, i figured what happened - one of the cylinders was not firing. I was in the situation before almost an year ago, and it turned out to be a faulty ignition coil, replacing which the car was back in running condition.
This is the car I am talking about -
https://www.team-bhp.com/forum/test-...ra-2024-a.html (My 1 year ownership of buying an used Skoda Laura in 2024)
The next 2 days -
I am still new in this area and do not have a go-to mechanic, I found one online and thought I would get an opinion. The scan identified that cylinder two was not firing at all. As suspected, ignition coil on cylinder 2 was kaput - we got some spare coils which we knew were working and after plugging in the car, we could even see the sparks from coil 2 (which was not there in the faulty coils) and even replaced all the spark plugs
However, despite this, the misfire on cylinder two persists.
Additional Observations:
While inspecting the spark plug for cylinder two, noticed unusual amount of soot deposit which was not there in the other cylinders
What We’ve Ruled Out:
Faulty ignition coils – tested with working replacements.
The basic wiring to the ignition coil appears fine, as the coil is firing.
Current Challenges:
The misfire remains unresolved despite addressing what seemed like obvious causes. It’s starting to feel like the issue might be deeper, possibly involving:
- Fuel delivery to the cylinder.
- Compression problems in the misfiring cylinder.
- A potential ECU or sensor-related issue affecting cylinder timing or fuel-air mixture.
My Questions to the Community and some thoughts going on in my mind,
- The mechanics advise is to replace the entire engine as opening this current one might be expensive and with no certainty that the issue will be resolved given the scarcity of spare parts.
- I am trying to get a second opinion from DMP Automobiles given all the good things I hear about them but they are held up for a few days with other projects and I am having to wait.
- Has anyone faced something similar where replacing the ignition coils has not solved the problem? Any possible advice? (I heard from someone it could be a valve issue?)
- Also because the topic of engine replacement came up, I started wondering if I could just convert this car into more of an enthusiast/ project car with a engine replacement from a Skoda Superb/ if I can find a VRS engine also. Any specific engines that you would recommend that could fit the Laura?
- I mean, the car weighs less than a Superb and with some more power, my power/weight should get better?
Again, maybe I am fantasising about this but figured this would be the best place to brainstorm and I’m open to any advice or troubleshooting tips to help narrow this down. This car means a lot to me, and I’m determined to get it running perfectly again.
Thanks in advance for your help and expertise!