Hi guys,

I recently put an uprated camshaft in a '03 dodge ram 1500, and after finally getting the idle to behave as they don't have any idle adjustment parameters, there seems to be a problem with the air flow in the car. I drilled a hole in the throttle body to increase air flow at idle and help the cam get the airflow required with the bigger lobes, however it seems to have messed something up with the car as when it is cruising it will randomly shut off and power down into a 'safe mode'.

Does anyone know what would be causing this 'safe mode' to come on? I feel like it could be something to do with the camshaft, but it seems to happen at various different throttle positions, not just idle.

I have full map software so I can adjust any parameters that are needed, but the map for this car is not very extensive at all!

Any help would be greatly appreciated.
Thanks.

 

Unfortunately, 2003 is the worst year for custom tuning. What cam did you put in it?

 

you might want to upgrade to a newer PCM. Depending on the cam LSA, you may not have enough vacuum to satisfy the MAP sensor since Dodge lives in the stone ages and doesn't use a MAF system. A custom tune will be your best bet.

 

I am going to assume you mean upgrade to 04 or 05. Doable, but not a plug-n-play operation. Alot of harness swap, has been done though. Once done, makes it vastly more tunable.