I am having a issue with a car and had a few questions. The car I am
asking about is a 98 camaro with 99 harness with a 99+ ecu running a 3 bar
speed density os. The P# on the ecu is 12200411. My buddy had another
tuner start on it but he gave up so I figured I would give him a hand. I am
not some idiot newb but have only used hp tuners previously on a one other
sd. camaro and that went easy as cake.
The problem I am having is no matter what I have done to the rom the car
goes dead lean at 60-70kpa. I can play with injector scaling, latency and
max the ve table out and no matter what it goes dead lean. I can get the
car to start and idle fine and will slow free rev ok as it only goes to about 50 kpa that way. If you try to stab the throttle quickly the thing goes lean from going higher in load. This is only load dependent, rpm does not play a effect.
The ecu description says its a Chevy silverado (v6) 2001. Do I need to
use some sort of a v8 rom for this to run properly? Any help and insight is
greatly appreciated. I can upload a cal fil when I get home.