no code 51's
HIGH NOX, I AM A GOOD NOX GUY.
THE high nox worse case was in california.
the person with it was Samurai. with sidekick engine. we fix it. !!! and see my last line for the fix. below,
nox means combustion temps way too hot, seems odd that but is true and why diesels are worst of all (high compression there)
this car it is most hard, of all , as are 1993 , kick engine or 1993 toyota engines. (suzuki made the better in 1999 with pure electric EGR)
the hit lest.
first know that on this car NOX reductions are 1/2 EGR and 1/2 CAT.
so both must be working or NOX will fail.
this car the CAT back pressure must be good or the EGR modulator will be dead or metering wrong ! yes the EGR mod sucks swap gas...
see my egr pages, the stall tests, and the bark tests?
I guess your car has the quad intake port, EGR, from hell. as most all do. that year. 95s can be mono ports and for sure 96+
it has 4 count them 4 egr injector sin the intake runner ends. cast in place horrors. but can be cleaned with great effort
then the EGR main must open (stall test pass?)
the EGR head tunnel clear, (12mm bore) that tunnel goes to the exhaust manual fold runner 4 , only. and must be there. (some after market fail here)
The EGR mod then senses this runner #4 pressures on the right side of the head, and meters exhaust to the 4 intake injectors. (free and clear)
this makes the engine half NOX clean, if the bark test fails the head tunnel is packed or the #4 exhaust port packed up.
then the CAT does the rest and must be a 3 way cat, !!!
now the fix, on the 1 super hard case sammy.
HIS cat was welded into pipe too far from the stock header,
the cat loves to cool too fast at idle and went dirty, the idle on the stock car keeps the cat LIT off hot. at all times. and nox low.
he moved the cat full forward and was CURED ! just one simple fix after testing all aspects of the EGR on engine, all test. passed, and no code 51 and no code 51 hack to hid it (ask) (the resistor hack)
do you have the egr sensor egr main, EGRT (thermo probe sensor)? if it runs cold the ECU barfs 51s, all day.
the other cars, (fed/cal?) use vacuum only to test EGR and can not be fooled. also mixing up Cal/fed ecu will make it throw codes 51 or 52s
my guess your CEL blinks code 12, hot.?
HIGH NOX, I AM A GOOD NOX GUY.
THE high nox worse case was in california.
the person with it was Samurai. with sidekick engine. we fix it. !!! and see my last line for the fix. below,
nox means combustion temps way too hot, seems odd that but is true and why diesels are worst of all (high compression there)
this car it is most hard, of all , as are 1993 , kick engine or 1993 toyota engines. (suzuki made the better in 1999 with pure electric EGR)
the hit lest.
first know that on this car NOX reductions are 1/2 EGR and 1/2 CAT.
so both must be working or NOX will fail.
this car the CAT back pressure must be good or the EGR modulator will be dead or metering wrong ! yes the EGR mod sucks swap gas...
see my egr pages, the stall tests, and the bark tests?
I guess your car has the quad intake port, EGR, from hell. as most all do. that year. 95s can be mono ports and for sure 96+
it has 4 count them 4 egr injector sin the intake runner ends. cast in place horrors. but can be cleaned with great effort
then the EGR main must open (stall test pass?)
the EGR head tunnel clear, (12mm bore) that tunnel goes to the exhaust manual fold runner 4 , only. and must be there. (some after market fail here)
The EGR mod then senses this runner #4 pressures on the right side of the head, and meters exhaust to the 4 intake injectors. (free and clear)
this makes the engine half NOX clean, if the bark test fails the head tunnel is packed or the #4 exhaust port packed up.
then the CAT does the rest and must be a 3 way cat, !!!
now the fix, on the 1 super hard case sammy.
HIS cat was welded into pipe too far from the stock header,
the cat loves to cool too fast at idle and went dirty, the idle on the stock car keeps the cat LIT off hot. at all times. and nox low.
he moved the cat full forward and was CURED ! just one simple fix after testing all aspects of the EGR on engine, all test. passed, and no code 51 and no code 51 hack to hid it (ask) (the resistor hack)
do you have the egr sensor egr main, EGRT (thermo probe sensor)? if it runs cold the ECU barfs 51s, all day.
the other cars, (fed/cal?) use vacuum only to test EGR and can not be fooled. also mixing up Cal/fed ecu will make it throw codes 51 or 52s
my guess your CEL blinks code 12, hot.?
http://www.fixkick.com