PJC Racing

The stock 19lbs. injectors can look yellow to one person and orange to another, don't get wrapped around the axle, more likely than not they are 19's.

silver91gt

I have a set of 24# injectors that have yellow tops, they are made by accel.
look at the top of one, right below the plug part and see if theres a small 24 on it.

vtecwho

from a tuner stand point it will theoretically make the car run richer. if you look at each MAF curve the 24lbs MAF will ramp up faster to 5volts making the car think that there is MORE air coming in to the engine therefore increasing the fuel and making your cars KAM(keep alive memory) swagger away from 1.00 into the .98 or .95. this means that your car will have to pull fuel out to correct its self.

SOOO after about a week of driving and not disconnecting the battery (to keep your KAM) your call will correct your MAF to the 19lb MAF; unless your KAM learning maxes out... i think it maxes out at .87.

if your KAM is above 1.00, your running lean and the ecu is commanding a richer mix and vice versa.

BTW you can only see this stuff happening if you have a tuning device like the tweecer.