Step 5 of 7 · Check Engine Light Decoded
P0300 vs P0301
P0300 vs P0301 — step 5 of 7 in Check Engine Light Decoded. P0300 is random. P0301 is cylinder 1. Swap the coil and plug to another cylinder. If the code follows the part, you found it.
Free auto & mechanics tip: P0300 vs P0301 (step 5 of 7 from "Check Engine Light Decoded").
P0300 is random. P0301 is cylinder 1. Swap the coil and plug to another cylinder. If the code follows the part, you found it. If it stays on cylinder 1, look at injector or compression next — that is a bigger job.
Flashing light, shaking, raw fuel smell: park it. A steady light for a cap code is a different animal.
2 more paragraphs in this tip — free with a Learnlyst account.
Create a free account to read the full tip
Unlock “P0300 vs P0301” plus daily tips. Guides and course pages stay public for search.
From the full photographed course
Check Engine Light Decoded →This tip is one step — unlock all 7 steps inside Learnlyst.
More Auto & Mechanics tips
Ready for the full Learnlyst library?
Free account for daily tips · $9/mo or $79/yr for every course.