Vaskata84 0 Posted December 24, 2020 Share Posted December 24, 2020 Hi I have the following problem with my car the car is a toyota rav 4 2009 yars D-cat 150 horsepower. The first problem is that this value worries me Diff. Press. Sensor Corr -1.1 kPa. And the other problem is that i have saved DTC I also provided a PDF file with all the values from the diagnostics. new.pdf Quote Link to post Share on other sites
m4rkw 19 Posted December 26, 2020 Share Posted December 26, 2020 Does "D-cat" mean insurance category D or that you've removed the catalytic converter? Quote Link to post Share on other sites
FROSTYBALLS 3,425 Posted December 26, 2020 Share Posted December 26, 2020 D-cat refers to a system of emissions control that Toyota used previously on some diesel models. Quote Link to post Share on other sites
Vaskata84 0 Posted December 27, 2020 Author Share Posted December 27, 2020 I have not removed anything Quote Link to post Share on other sites
Vaskata84 0 Posted December 27, 2020 Author Share Posted December 27, 2020 did you see the diagnostic data attached to a file Quote Link to post Share on other sites
Devon Aygo 963 Posted December 27, 2020 Share Posted December 27, 2020 What is the DTC? Quote Link to post Share on other sites
flash22 656 Posted December 27, 2020 Share Posted December 27, 2020 A EGR map fault by the looks of it 9kpa under min value - egr is more than likely needs to be decoked (cleaned) Quote Link to post Share on other sites
Vaskata84 0 Posted December 27, 2020 Author Share Posted December 27, 2020 if any of you know what this value shows and why it is in those values Diff. Press. Sensor Corr -1.1 kPa. Quote Link to post Share on other sites
Devon Aygo 963 Posted December 27, 2020 Share Posted December 27, 2020 2 hours ago, Vaskata84 said: if any of you know what this value shows and why it is in those values Diff. Press. Sensor Corr -1.1 kPa. What is the DTC? Quote Link to post Share on other sites
Vaskata84 0 Posted December 28, 2020 Author Share Posted December 28, 2020 I have no idea what it is DTC I only know that mistakes are recorded there Quote Link to post Share on other sites
philip42h 77 Posted December 28, 2020 Share Posted December 28, 2020 9 hours ago, Devon Aygo said: What is the DTC? In this context Google suggests that they are Diagnostic Trouble Codes (DTCs) as listed in the attached Vehicle Diagnostic Report for a 2ADFHV engine. Beyond that, I have absolutely no idea what issue is being reported here ... 😉 Edit: though having posted I suspect that I may well have been very dumb! 🙂 ... you are probably asking what that actual code is ... Quote Link to post Share on other sites
Vaskata84 0 Posted December 29, 2020 Author Share Posted December 29, 2020 I ask if this value is normal Diff. Press. Sensor Corr -1.1 kPa. I'm mostly interested in that Quote Link to post Share on other sites
TonyHSD 777 Posted December 29, 2020 Share Posted December 29, 2020 DTC used in vehicles diagnostics software as detected trouble code (fault code). He has a clogged egr most likely and sometimes problems like that does not trigger fault codes immediately. I know nothing about Diesel engines and my advice Is to take the car to someone who knows Diesel engines and egr plus all other sensors problems well. 👍 Quote Link to post Share on other sites
flash22 656 Posted December 29, 2020 Share Posted December 29, 2020 diff pressure, is the pressure between intake and exhaust of DPF or D-cat system, Diff. Press. Sensor Corr. This is the correlation between the 2 sensors (basically exhaust back pressure) ,without looking it up it may be within normal range I would be looking at that EGR issue first as you have techstream you can check the sensor with a vac/air pump, look at the value on the gauge and the value on the screen and compare Quote Link to post Share on other sites
Devon Aygo 963 Posted December 29, 2020 Share Posted December 29, 2020 10 hours ago, Vaskata84 said: I ask if this value is normal Diff. Press. Sensor Corr -1.1 kPa. I'm mostly interested in that Toyota do not format their diagnostics in that way, you start with a DTC which for some reason you seem reluctant to provide? with the DTC you get a formatted diagnostic procedure which you then follow, the "Diff. Press. Sensor Correlation" maybe a cause but it may also be a symptom, but without context of a DTC you are "stabbing in the dark" just post waht DTC you are getting and stop all the conjecture. Quote Link to post Share on other sites
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