5 codes and 16psi max boost?
#11
#12
Re: 5 codes and 16psi max boost?
The ecm could com from cummins or any auto computer supply shop.
I'm voting that your not able to clear hard or ecm codes with your tool. If you are its a constant fault. Once the data is viewed and or logged for the map sensor (which can be done by any reputable auto shop, not just performance shops) you can make a determination of the issue. Often issues like this are caused by boxes that utilize the map sensor via jumper harnesses. But again, until the data is available, its impossible to diagnose this problem. Don't just go throwing a ecm because it might be it.
Heck, go to any shop and give them 1 hour of shop labor, ask what voltage are for the map sensor according to their scan tool. Then verify the voltages at the sensor
I'm voting that your not able to clear hard or ecm codes with your tool. If you are its a constant fault. Once the data is viewed and or logged for the map sensor (which can be done by any reputable auto shop, not just performance shops) you can make a determination of the issue. Often issues like this are caused by boxes that utilize the map sensor via jumper harnesses. But again, until the data is available, its impossible to diagnose this problem. Don't just go throwing a ecm because it might be it.
Heck, go to any shop and give them 1 hour of shop labor, ask what voltage are for the map sensor according to their scan tool. Then verify the voltages at the sensor
#14
Re: 5 codes and 16psi max boost?
Unhook the edge from the map sensor, or completely disconnect the edge (don't worry about the tap wire) and see if the codes will clear. The sensor supply voltage should be 5v and the signal should indicate 0psi of boost and follow with the increase of boost. Can't remember exact voltages but try the edge first and I'll look the voltages up if you need them. The voltages are more important as in the sensor indicates psi of boost. In other words if 3.78 volts = 20 psi to the computer, yet the sensor shows 4.89 volts at 20 psi the truck will defuel because the computer sees a higher boost number than is actually present.
Hope that makes sense
Hope that makes sense