I have a ls swapped crx si...... built for boost.... Recently while i was over at my tuners house we were trying to get the numbers right (Can't even get boost readings) as we drive and start to get into about 4lbs the car starts to shake and cut out..... we get some of the base map cleaned up and finally start to hit about 10-12lbs feeling pretty strong but still cutting out.... cant figure it out? We get back to the shop plug into the ecu and setting in N we begin to slowly rev the motor to see what's going on.... at about 1500-1700rpms the car starts surging? I got so pissed of messing with it i finally plug all my oil lines undid the intercooler and put my ls back stock until i could get some advice.... i've done some reading but cant find anyone that has had this type of problem? SOMEONE HELP ME OUT I WANT BOOST!!!! let me know if you need details about the motor intake setup anything..... not sure where else to go????

 

morning bump!!! help a guy out yo!!!

 

afternoon bump!!!

 

vacuum leak? iacv dirty?

 

how does da motor run wit out da boost?

 

without boost on it runs like a champ.... no cuts no lag.... just runs