12-29-2017, 11:34 AM
The wildfires have been keeping me busy, but I’m back on this Sammy again chasing a gremlin!
No 51 or 52 codes...you’re correct that it is flashing 12 when hot. The statement about cat back pressure has me interested. The cat is brand new and is directly after the Thorley header, but I don’t know how much back pressure I’m getting with the 2” exhaust...may help to reduce diameter? It does pass the EGR stall test and I’ll do the bark test next. I cleaned the intake when it was off, but l had not yet read a bunch about some of the problem areas that get clogged up. I soaked it in the parts cleaner and blew it out with brake cleaner. Cleaned the EGR as well(no EGRT on my car, it’s vacuum only). I’ll post pics of the smog reports from the referee. It was close on my first attempt, then a local shop worked on it and it got way worse. (I performed all of the tests from the tech pages to the best of my ability and found nothing wrong, thought maybe a shop was necessary) They said the IAC(thermal) was bad and changed the throttle body(first they touched the “do not touch ever” screw...stupid!). The new throttle body and whatever else they did sent it off the charts on nox. Then took it back to them and they said the the EGR modulator and the VSV were bad...they replaced them with no improvement. Now they’re saying it’s just not making enough vacuum at the lower RPM/speed of the smog test to fully activate the EGR?!?! Scratching my head!!!
No 51 or 52 codes...you’re correct that it is flashing 12 when hot. The statement about cat back pressure has me interested. The cat is brand new and is directly after the Thorley header, but I don’t know how much back pressure I’m getting with the 2” exhaust...may help to reduce diameter? It does pass the EGR stall test and I’ll do the bark test next. I cleaned the intake when it was off, but l had not yet read a bunch about some of the problem areas that get clogged up. I soaked it in the parts cleaner and blew it out with brake cleaner. Cleaned the EGR as well(no EGRT on my car, it’s vacuum only). I’ll post pics of the smog reports from the referee. It was close on my first attempt, then a local shop worked on it and it got way worse. (I performed all of the tests from the tech pages to the best of my ability and found nothing wrong, thought maybe a shop was necessary) They said the IAC(thermal) was bad and changed the throttle body(first they touched the “do not touch ever” screw...stupid!). The new throttle body and whatever else they did sent it off the charts on nox. Then took it back to them and they said the the EGR modulator and the VSV were bad...they replaced them with no improvement. Now they’re saying it’s just not making enough vacuum at the lower RPM/speed of the smog test to fully activate the EGR?!?! Scratching my head!!!
1986 Samurai with 1993 1.6 16V
1.6 completely rebuilt, Trail Tough harness modification and ECM bench test, injectors tested and cleaned, Thorley header, new cat, 2”exhaust
Trail Tough Epic Trek SPOA on 33” BFG KO2’s
1.6 completely rebuilt, Trail Tough harness modification and ECM bench test, injectors tested and cleaned, Thorley header, new cat, 2”exhaust
Trail Tough Epic Trek SPOA on 33” BFG KO2’s