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Discussion Starter #1
I'm new on this forum. I've been watching it for a couple of days and I find it interesting, useful and friendly.
I drive a Sephia 2000 automatic that I bought six months ago. Now it has 67k km.
It ran nice and smoothly until this week, when it started to shake and loose power.
I replaced the plugs (NGK-platinum) and the engine is running much better, even than before. Its problem is at lights and stops: till I press the brake pedal, the engine is turning really badly, is shaking like no spark or gas, almost dies. I can see the rpm going down for moments. If I put the stick in P or N, no problem, the engine works normally, no shakes.
I changed the front braking pads the day before everything started.
The CEL has been ON for a while. From time to time it went off, but now it is still on. Just after 1 km that I replaced the plugs, The CEL was blinking for seconds and than it went still again.
At stops and lights it shakes badly.
Any suggestions?

Premium Member
2015 Buick Verano "Leather Group", 2015 Kia Optima Hybrid
6,121 Posts
platinum plugs are most likely the culprit. a lot of ppl had problems using them in this motor.
or maybe the spark plug gap is a little off...
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