Check engine light after installing Pulsar XT engine tuner

[KenF1965]

I recently installed a Pulsar XT engine tuner in my 2021 Gladiator Sport with the 3.0L diesel engine. It runs fine, but I have a check engine light that will not clear. I have tried going to the service department at a Jeep dealership and they couldn't get it to clear either. Anyone have any ideas? Thanks

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[rharr]

two questions
what is the error code ?
and
Does error go away when you remove the Pulsar?

 

[DiehardTory]

Interesting; i've no suggestions but my thoughts: LOL!

 

[wolfdog]

Just stop adding stuff guys!!

Go Jeep!!!

 

[Fpolanco]

I'm with @rharr...what's the code?

If you're hell bent on just clearing it, disconnect the negative battery cable and let it sit for 10-15 min. It should reset the memory.

Just an FYI: the check engine light might come back.

 

[KenF1965]

two questions
what is the error code ?
and
Does error go away when you remove the Pulsar?

The code was for the ventilation tube disconnected (PDB04 from a reader). Disconnected the Pulsar and the code stayed in. Came to realize we didn't put a needed part that goes inside the vent tube when installing the cold air intake. I have contacted K&N to get a replacement. Should get in a week or so.

Thanks for your help.

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