I have 80hp injectors-I have a boost fooler-I have 5" exhaust and I have hypertechs tuner. I erase the dtcs and as soon as I go over 20lbs. boost it comes back. And It dosen't completly kill the snap but I can feel a difference that first acceleration. I sent my boost fooler back to b-d and they sent me out a new one and its the same deal. Should I stack boost foolers? Any suggestions would be great. The truck runs well over stock but I know it can run better. If I remove the boost-fooler it really loses snap. I can watch the cloud of smoke dissappear completley at 21lbs. boost. with the boost fooler or with out. Could my map sensor be bad? Hate to spend the $$$ on a non returnable part.

 

The P1693 is a generic code meaning there is a code present.

The key on/off/on/off/on apparently doesn't show all the codes.

Are you reading them with the Hypertech?

You might need to go to a Dealer and have them read with their tool.

You must have a code hiding somewhere for just the P1693 to show up.


phox