# 2012 RAM 2500 check engine light @ 3000 rpm **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** dodge, ram-2500\ **Created:** [July 22, 2018, 1:31am UTC](https://community.cartalk.com/t/2012-ram-2500-check-engine-light-3000-rpm/121474 "2018-07-22T01:31:58Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![DonaldRichardFernau](https://avatars.discourse-cdn.com/v4/letter/d/0ea827/32.png) [@DonaldRichardFernau](https://community.cartalk.com/u/DonaldRichardFernau)\ **Post date:** [July 22, 2018, 1:31am UTC](https://community.cartalk.com/t/2012-ram-2500-check-engine-light-3000-rpm/121474/1 "2018-07-22T01:31:58Z")
5.7 hemi, 2012 ram 2500. When towing or kick into passing gear, 3000 rpm, check engine light starts blinking, code p0301, I changed spark plugs, coil pack, still happens at 3000 rpm. What does anyone think? ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [July 22, 2018, 2:25am UTC](https://community.cartalk.com/t/2012-ram-2500-check-engine-light-3000-rpm/121474/2 "2018-07-22T02:25:59Z")
A blinking Check Engine light means a major misfire is occurring. If the vehicle is driven with a blinking Check Engine light, damage to the engine/catalytic converters can occur. Stop driving the vehicle until it’s determined what’s causing the Check Engine light to blink. Tester ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [July 22, 2018, 3:11am UTC](https://community.cartalk.com/t/2012-ram-2500-check-engine-light-3000-rpm/121474/3 "2018-07-22T03:11:14Z")
I would suspect a weak or restricted injector on cylinder #1.