I have had my commander for a while now and have been very pleased with its performance. Well the last couple of days the boost has been reading very erratic. Sitting at a stoplight at idle the boost will show up to 35psi and just all over the board. Or when you are driving and just cruising at a steady rpm it will do the same thing, jump up to 15psi or so and drop back down. I know the truck isn't really boosting like this, so my ? is, is this something with the commander? Doesn't seem like it would be as it has been working fine, or is it a bad MAP sensor? The Injection pressure does not change with the "crazy" boost values. Any ideas?

Thanks
Nick

 

Probably the tap is loosing and gaining connection. Check the tap really good that you used on our harness and see if that fixes it.