i have been dealing with engine code 1128 for over three months now and the problem still hasnt been solved. Everything I have done has helped, but has not solved the problem of a loss of acceleration. I have replaced downstream o2 sensor, cleaned maf sensor, and replaced fuel filter. The other 2 oxygen sensors are testing fine. I think the problem might be fuel pressure related, but i'm not completely sure yet. Does anyone know about the sensor located between the intercooler and intake manifold? I saw it the other day and it didnt even hit me to check the thing out. It looks like a smaller maf plastic housing. I dont know anything about this sensor and what it actually reads. Cona someone help me out?