Throwin Codes

[Genros]

I have had my hot juice for a couple months now, last month I installed a silver bullit along with Industrial injections boost fooler. Last week my truck went into llimp mode with the orange fuel pump lookn thing on the dash. when i had a buddy reset it his sanp on box said it was eo299 (something like that) low boost ... ... ..... It has happened two time since then. What is going on? I think i am going to disconnect the hot juice/a2 tomorrow and then reset and see what goes on. If any one has any info please speak up

 

[mattymac]

Its a low boost code that get tripped usually when a larger turbo is installed and while cruising your boost runs a few lbs lower, the ECM sees this and thinks there is a boost leak somewhere in the intake system so it defuels the motor to ensure that there is no way to cook the motor by hot EGT's caused by the low boost condition. There is no fix other than a powerfull code eraser, or the stock or small aftermarket turbo.

 

[Genros]

isnt that what the boost fooler is supposed to help with

 

[mattymac]

NO! There are two things on our trucks that need to be taken care of electronic wise to stay happy, first the map sensor that tells the computer how much air pressure is going into our motors, that is where about every chip has to go to fool the computer by sending it a false lower reading and get its info on motor load to determine how to fuel. The second is the electronic wastegate actuator on 04. 5 325 HP model motors, which is a piece of nothing more than a piece of emmisions equipment to help the wastegate stay closed longer for faster spool then slams open on full boost to keep boost in safe limits.



The 299 low boost code is because of the reading of the MAP sensor but it boils down to having lower boost pressure at cruising speeds. I have had this code a few times and it only happens to me when I am or have been on the highways cruising for a while.



I used to run 65 mph at 10-11 lbs with my stock charger, now with my SPS 66 I get 5 -6 lbs at the same speed. I can drive my truck for weeks on end stop and go, if I get on a freeway for a few dozen miles at a steady cruise I usually get the code.