P051b code after changing CCV filter

[RBeard]

I serviced my son's '21 truck yesterday including the CCV filter. He called me and said CEL came on. He had the code read and it was P051b. I reset service reminder for oil, fuel filters, CCV filter. It threw the code after he drove 50 miles.

 

[RBeard]

Well. I went to my son's work and popped the hood to look around for something out of place. What I found out of place was the oil fill cap. It was laying on the bat wing next to the dipstick. Wiped the oil mist off the valve cover and closed the hood, Called the boy and confessed. Being in a hurry can cause you to forget things

 

[Grumpy8811]

Well. I went to my son's work and popped the hood to look around for something out of place. What I found out of place was the oil fill cap. It was laying on the bat wing next to the dipstick. Wiped the oil mist off the valve cover and closed the hood, Called the boy and confessed. Being in a hurry can cause you to forget things

as a coworker used to say when prompted to hurry up by a supervisor " a good mechanic is a safe clean slow mechanic".. I figured it was something simple, didn't have any suggestions though.. glad you got it fingered out.

 

[Signal73]

Haste makes waste. I have to remind myself of this constantly!

 

[Ozymandias]

Isn't it a miracle what can throw codes nowadays, so even ccv flow is measured in a way.

 

[Grumpy8811]

Isn't it a miracle what can throw codes nowadays, so even ccv flow is measured in a way.

they have that crankcase pressure sensor in the rocker cover nowadays.. apparently it is looking for either too little or too much.. in his case, with the oil filler open to atmosphere it would seem it doesn't like too little. LOL.

 

[Wiredawg]

I installed an oil catch can on my 2017 Ram 5500, the sensor didn't like it... off it came. Sensor is very "sensitive."

 

[lschultz]

Yep been there done that. And other things

 

[Grumpy8811]

speaking of CCV codes, over the week my truck has been setting a code for the CCV reading intermittent.. I pulled the sensor out, cleaned it out with a little WD40 and air pressure, replaced the oring and have driven it several times and it hasn't reset a code yet.. I haven't driven it enough yet to consider it repaired.