How to lower the engine rpm in VCM editor?
Go to the VCM Editor Engine>Fuel>Power Enrich, PE Enrichment>V8 Mult vs. RPM. Make sure Plus and Selected are bubbled in. In this case the narrow band oxygen sensor is reading rich, so bring it down by SUBTRACTING .01. NOTICE THE DECIMAL!!!! VERY IMPORTANT!!! If lean, BELOW 890mv then ADD .01 at a time.
What causes a PCM to think the engine is running one way?
Be sure there are no exhaust leaks anywhere before the oxygen sensors; also check for vacuum leaks, around the throttle body, MAF sensor, and the intake manifold (they commonly leak on these engines). If any of these things are in poor repair, they can cause the PCM to think the engine is running one way when it is not.
Can a PCM detect a misfire down to the indivual cylinder?
This let’s the PCM detect misfires down to the indivual cylinder. First off it does not hurt to drive with the ses liht on PROVIDING that the only code is for a case relearn needed. Without the case relearn done the PCM will not be able to correctly diagnose a misfire if you get one.
Where do I find LTFT tuning in VCM?
LTFT TUNING – A. In the VCM Editor>Edit>Engine Diagnostics>General>MAF Sensor Fail Frequency = 0. This will set a P0103 code and turn on the SES light. Ensure that the P0103 DTC is enabled and you are seeing P0103 in the DTC list.
What does p0741 mean on a torque converter?
P0741 is a diagnostic trouble code (DTC) for “Torque Converter Clutch Circuit Performance or Stuck Off”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What is the diagnostic code for a torque converter?
The P0741 diagnostic trouble code can be difficult to diagnose. Be sure to check all of the transmission wiring, the TCM, and the TCC solenoids. Keep in mind that the transmission pan may have to be dropped to get to all of the wiring.
This let’s the PCM detect misfires down to the indivual cylinder. First off it does not hurt to drive with the ses liht on PROVIDING that the only code is for a case relearn needed. Without the case relearn done the PCM will not be able to correctly diagnose a misfire if you get one.
How can I tell if my torque converter is working?
If the wiring to the TCM and the TCC solenoid pass inspection and testing, an advanced scan tool will be able to show when the TCC solenoid is activating the torque converter, and when the torque converter is operating.