My 87T (5spd) failed emissions today. It passed CO and NO levels (at about 50% of the spec value). The emissions are checked at 15 mph and 25 mph in Virginia. HC level was 108 ppm (limit is 108ppm) at 15 mph and 181 ppm (limit is 105ppm) at 25 mph.
Mods include: Lexus AFM with screw half way in, RC 550 injectors, AFPR, WB high flow fuel pump, Magnacore plug wires, Random tech 3" downpipe, hi-flow cat, and 3" cat back. Fuel pressure was set at 25 psi at the time of the test. I passed with this setup two years ago.
OEM plugs are 4 years old with 20K miles on. will changing the plugs help? any tricks to get this to pass ?? what about screwing the AFM screw all the way out ? will the car just rich the mixture more to compensate? should I fool around with the EGR at all?
Any help is appreciated..
Mods include: Lexus AFM with screw half way in, RC 550 injectors, AFPR, WB high flow fuel pump, Magnacore plug wires, Random tech 3" downpipe, hi-flow cat, and 3" cat back. Fuel pressure was set at 25 psi at the time of the test. I passed with this setup two years ago.
OEM plugs are 4 years old with 20K miles on. will changing the plugs help? any tricks to get this to pass ?? what about screwing the AFM screw all the way out ? will the car just rich the mixture more to compensate? should I fool around with the EGR at all?
Any help is appreciated..