Just did an EHM mod to my CRD and got CEL light right away. Runs good and do not feel anything wrong with Jeep, but CEL light bothers me. Is that normal with this mod? Any thoughts? Thank you.

Noboby? I tryied search, but it does not work...

You should not have gotten a cell.
You need to see what the code number is.
Can you get someone with an engine scanner to help you read the code?
Maybe an autoparts store in your area can help.

Let us know what you get.

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2006 Liberty Limited CRD, Deep Beryl Green, Yeti tune, Arp studs, new cams, rockers, lifters, TB. "Green Monster"
2005 Liberty Sport CRD, Deep Beryl Green, GDE Hot Tune, ARP studs. "Rocket"
1982 Fiat 124 Spider Convertible. "Fiona"

Thank you racetracker,
I will try to check the code today after work or tomorrow. I know that there should not be a CEL with EHM mod, but strangely enough the code appeared right after I have installed the EHM... May be just a coincedence?

You probably bumped some unrelated electrical plug loose, or plugged the wrong hose when doing the EHM. Post a picture of your install and we can tell.

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05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat, Renegade light bar,
Bilstein adjustables, Al's Gen 4.5 Arms, 235/85-16 Duratracs, DTT rear, Elocker front, EVIC+TPMS, Turbo timer, McNally pillar gauges, Weeks Stage II kit.

It had two codes P1189 and P1252.
P1252 - cleared by reader and works fine for now.
P1189 - tightened the air sensor with zap strap (broken lock pin) and the problem dissapeared.
Big thank you to this forum and people contributing to it. It was easy to solve the problem using search function.