Disappearing check engine code


Active member
I went to dive my 2018 JKUR Recon manual transmission to work tonight & got a CEL & a code reading p050b "Cold Start Ignition Timing Performance". It didn't run any different than normal. I tried clearing the code but it didn't disappear. I ended up disconnecting the battery for 10 mins & that made the CEL light go away but I'm still waiting for the other shoe to drop 😬
I thought I was done with these issues getting a newer Jeep... that's what I get for thinking...

Never saw a b code

Here is what I found

Common Problems That Trigger the P050B Code

Clogged air filter
Idle Air Control (IAC) valve failure
Mass Air Flow (MAF) sensor failure
Powertrain Control Module (PCM) failure
Throttle body assembly failure
Wiring issue

Monitor your mpg. Full yo empty tank. Or aapp same miles driven.

Never look down on anyone unless you are helping them up - Jesse Jackson