The shop is taking awhile to get the results on the head, so I ordered a refurbished one with new valves and springs from TrailTough. I will post old head results when available. I installed the new head with my cam and new Felpro gasket. I did a compression check to see if the issue with #4 cylinder was resolved.
Results: #1 @200, #2 @190, #3 @195, #4 @205....definitely better than before!
Thought I had it solved, but car still requires throttle input to start when cold and has same misfire. I took it to smog referee appointment anyway and failed for way high nox...see 5 gas report attached. I suspected the egr from reading all of your tech pages, so I did all the tests again. It’s a quad port. Passed stall, passed bark(although I don’t know how loud it should bark...chihuahua or Great Dane. Live test showed movement over 2500, but would close occasionally with throttle input all the way to 3500. I watched the diaphragm and it’s movement correlated directly with the misfire...misfires when diaphragm opens. EGRT and VSV tested good.
Results: #1 @200, #2 @190, #3 @195, #4 @205....definitely better than before!
Thought I had it solved, but car still requires throttle input to start when cold and has same misfire. I took it to smog referee appointment anyway and failed for way high nox...see 5 gas report attached. I suspected the egr from reading all of your tech pages, so I did all the tests again. It’s a quad port. Passed stall, passed bark(although I don’t know how loud it should bark...chihuahua or Great Dane. Live test showed movement over 2500, but would close occasionally with throttle input all the way to 3500. I watched the diaphragm and it’s movement correlated directly with the misfire...misfires when diaphragm opens. EGRT and VSV tested good.
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