Hello and Welcome to JustAnswer. I am reviewing your question and will be back with you in just a second.
Several things to mention with your issue. First of all is your car at a Lexus dealer?
Is a dealer performing the repairs related to the check engine light? A blown head gasket on that model is uncommon.
No, I'm going with an independent mechanic. I went with Lexus prior and they weren't of much help. They were the ones performing the ignition coil change, sparks plugs change, and injectors change....none of that helped.
So what could it be if it's not a cracked gasket??? This problem is extremely annoying, the VSC lights, Check engine light, and the skidding light are all lighted. I always suspected that it could be the computer that is the problem. Also, at which price (repairs) do you think it's not worth it and just trade in the car?
It always link back to the ignition coil error #3. But they looked at it and changed it multiple times.
I can't remember the codes. But what the codes pointed to, ignition coil #3, wasn't the problem. So if they performed those checks you advised above and it's negative, what problem could it be? I've basically exhausted all possible problems and still haven't figured it out. The mechanic said it's misfiring, and it's only misfiring when the engine is cold but is fine after it warms up. They performed something, like putting pressure or something and they are confident that it's the gasket. My concern is that is it worth it? Most online comments I've read said the cost to do the head gasket is so great that they might as well get a new engine. In that case, I would rather get rid of the car. What are your thoughts?
Can you think of a few possible problems aside from the head gasket based on the systoms I've described? VSC light, Engine check light, Skidding light all lighted up....computer code reading P330 or something (ignition coil area) but it's actually not that problem. And what is an acceptable price to pay for the repairs? I don't really want to trade it in because then I'd have to take a big hit. Also, is this not covered under warranty...powertrain?