Well I just got back from Failing emissions on my 87 4.2L. My Readings were as follows (for PA):
CO (Limit 5.40) Test Value 6.80 FAIL
HC (Limit 537) Test Value 861 FAIL
NO (Limit 14145) Test Value 4145 Pass
Don't know if that will help you out or not, I now have to figure out whats up with mine. Any Ideas?
1987 YJ, 258, Weber 32/36, HEI, Custom Sound bar, Hardtop/Sun-rider/bikini tops, 2" Lift, 1/2" Boomerangs, 1" Body & MM Lift. 32x11.5x15 Copper STT's on Black Rock 950 Lobos w/4" backspacing, Still need Front Bumper and Seats.
My build thread: [url]http://www.jeepforum.com/forum/f12/my-very-slow-87-yj-build-thread-1137667/[/url]