[BCoffey]

I just changed the Lzfr5c11 plugs to Lfr5a1x-11 iridium. Now when the engine is under load the tpms light comes on. The left front tire reads wrong on the dash but the light only comes on with throttle. Where did I go wrong, I assume it's some sort of interference issue. Thanks!

No CEL, 2012 hemi

 

[NevadaMike]

That seems strange

 

[lilredexp22]

Switch back to stock plugs. I did same in my 2012 and it acted all sorts of weird after

 

[BCoffey]

Yeah I'm gonna be doing exactly that. Thanks!

 

[onlyonedr]

The TPMS module/antenna is ahead of the left front wheel. Most folks pull the wheel houses when they change the plugs; is it possible the wiring/plug was snagged or pulled when the working in the wheel well? You can try unplugging and re-inserting the plug to see if the issue goes away as well as inspecting the wiring harness to make sure it was not damaged in any way.

 

[BCoffey]

The TPMS module/antenna is ahead of the left front wheel. Most folks pull the wheel houses when they change the plugs; is it possible the wiring/plug was snagged or pulled when the working in the wheel well? You can try unplugging and re-inserting the plug to see if the issue goes away as well as inspecting the wiring harness to make sure it was not damaged in any way.

I did mine from the top but I will check it out. Thank you!

 

[BCoffey]

Bought a set of the oem plugs, all is good now.

 

[jameswinkelman66]

Spark plugs can through a radio signal off through the plug wires...maybe this caused the issue?