Unraveling EGR Monitor Issues A Step-by-Step Guide to Resolution

If the EGR valve is over 10 years old or has more than 150k miles , then it may be just too old and tired to pass the ECU Monitors. The valve must close under ... I have the same problem (egr/vvt monitor). It is now in a shop with a dynamometer and has been driven a total of 8 "drive cycles" with no reset in sight. An intermittent fault relating to the EGR position sensor can be difficult to troubleshoot. Monitoring the live data is critical for identifying the cause of ... Verify that No Emissions Related DTCs are Present. · * If an Emissions DTC is Present, the OBD II Monitors may not run and the CARB Readiness ... Begin the drive cycle from a cold-start; having allowed your vehicle to sit overnight. Note, the secondary air injection monitor will require a cold-start in ... ... cleaning. The other night I was monitoring EGR commanded and EGR error, I noticed my egr error would never change from 99.2% and my ... The job of the EGR monitor is to confirm or make sure the EGR circuit is working, what most mechanics get wrong is that they only check the EGR if they check ... So if the vacuum lines to/from the DPFE sensor are hard and brittle, it's time to replace. Next, large amounts of carbon are common in the EGR ... I'd contact sos diagnostics about a replacement ic.. I had three sprinters where the egr monitor readiness would never complete. Two of them ... if EGR valve needed cleaning or wasn't working properly I would get a MIL, right? ERG monitor won't cycle. had delete installed for under 5K ...