k so i have a ls vtech jrsc and i can get it to start but it will only idle for a little and then it dies, i have the fuel pressure set at 55 and today i just put a base map tune on it that got from pherable.net and when i started it after i put the chip in the ecu it started to idle way better than it did with the stock ecu but when i gave it some gas it just died any ideas on what might be wrong i have never built a boosted car always stuck with NA so any help at all would be great


the car is a 92 civic cx hatch, motor consist of b18 (ls) with oversised b16 pistons, stock ctr head, im running rc440 injectors and for the ecu it is a pr4 with a base map chip from pherable.net. when i bought the car it had itb's and was running on the same computer except for it had been tuned by adam hopkins with ec tune and the car ran strong as hell. but i have now put the jrsc on it and have ran into all kinds of trouble. like i said before i have never built anything other than na and i have been looking at all the other build threds and noticed everyone is running a fmu of some sort, do i need one on my car?

 

A little more info would help. What ECU, what chassis, what engine management, what injectors, etc... If it's a 92-00 Civic or a 94-01 Integra, I'm going to guess that you mixed up the MAP and TPS plugs.

 

Ya or you got your vacume hoses wrong.