now the EGR test weakness, covered . (all kicks with this sensor same deal)
the EGRT test is really really dumb (cured in 96)
the test is but one 1 test per driving cycle (means cold started then hot engine)
What if the EGR valve leaked, (oops no leak tests done on this car) so the hot exhaust gasses leak to pipe 50 and the silly dumb ECU logic sees the hot EGRT and thinks it is all GOOD.
that is why EPA banned the bugger. IT IS NO GOOD this and the ECU firmware test EGR IS NO GOOD. (call it a half baked plan)
The correct test is to make sure it is EGR cold readings on a hot engine shows, that the sensor is cool when EGR is not active, then do the hot test next, (oops)
I might add, the ECU does do DTC53 telling you the EGRT sensor is missing, unplugged, or dead open circuit in side, but is wrong is there is no EGR LEAK TEST DONE THIS IS pure PAIN on this car.
this is why the 10k ohm resistor trick works it fools the silly thing into a happy state. (1 test, hot engine and happy)
my answers are not to cheat or make more smog (never)_
my answers are to solve complex problems with EGR here, and it is complex, a RUBE GOLDBERG mess.... https://media.giphy.com/media/mYqaRkXyoGbcY/giphy.gif
ON MORE bad thing. the EGR in some countries, do not do code 51 tests, for sure JDM cars, and even cars in Canada, yah (or EU< vitara is same car called Vitara)
the CALIF car for sure does this test, and is the worst state country /state rules. car CALIF.
the CALIF car may go to LIMPHOME mode ( failsafe) and go super rich AFR (air/fuel/ratio), and car gets 15mpg not 28mpg. this only happens on some cars in usa. fed/calf.and is not documented
these cars go to limphome when sensor fail. (go dead = fail) the worst cars are 95 and older. 96 up , does far better (vastly so) The 96 is smarter, it tries not to burn up a good CAT, in fact. (amazing no?)
95 and older love to burn up a good CAT, this is a fact. some even glow the CAT RED HOT, (in the dark seen)
the EGR on this car uses Exhaust pressure and vacuum circuits and ECU logic to run the EGR normally and test the EGR for 1 simple(or missing) failures. (barbaric it is)
I cover CAT backpressure here extensively, check it out. (i even quote real Suzuki manual data)
if MPG is ok,, then failsafe is not happening , a very good thing.
the EGRT test is really really dumb (cured in 96)
the test is but one 1 test per driving cycle (means cold started then hot engine)
What if the EGR valve leaked, (oops no leak tests done on this car) so the hot exhaust gasses leak to pipe 50 and the silly dumb ECU logic sees the hot EGRT and thinks it is all GOOD.
that is why EPA banned the bugger. IT IS NO GOOD this and the ECU firmware test EGR IS NO GOOD. (call it a half baked plan)
The correct test is to make sure it is EGR cold readings on a hot engine shows, that the sensor is cool when EGR is not active, then do the hot test next, (oops)
I might add, the ECU does do DTC53 telling you the EGRT sensor is missing, unplugged, or dead open circuit in side, but is wrong is there is no EGR LEAK TEST DONE THIS IS pure PAIN on this car.
this is why the 10k ohm resistor trick works it fools the silly thing into a happy state. (1 test, hot engine and happy)
my answers are not to cheat or make more smog (never)_
my answers are to solve complex problems with EGR here, and it is complex, a RUBE GOLDBERG mess.... https://media.giphy.com/media/mYqaRkXyoGbcY/giphy.gif
ON MORE bad thing. the EGR in some countries, do not do code 51 tests, for sure JDM cars, and even cars in Canada, yah (or EU< vitara is same car called Vitara)
the CALIF car for sure does this test, and is the worst state country /state rules. car CALIF.
the CALIF car may go to LIMPHOME mode ( failsafe) and go super rich AFR (air/fuel/ratio), and car gets 15mpg not 28mpg. this only happens on some cars in usa. fed/calf.and is not documented
these cars go to limphome when sensor fail. (go dead = fail) the worst cars are 95 and older. 96 up , does far better (vastly so) The 96 is smarter, it tries not to burn up a good CAT, in fact. (amazing no?)
95 and older love to burn up a good CAT, this is a fact. some even glow the CAT RED HOT, (in the dark seen)
the EGR on this car uses Exhaust pressure and vacuum circuits and ECU logic to run the EGR normally and test the EGR for 1 simple(or missing) failures. (barbaric it is)
I cover CAT backpressure here extensively, check it out. (i even quote real Suzuki manual data)
if MPG is ok,, then failsafe is not happening , a very good thing.
http://www.fixkick.com