08-02-2012, 05:45 PM
Join Date: Feb 2008
Location: Portsmouth, VA
Total Cats: 0
Misfire log, what to check next? MSPNP N/A car
92 Miata with 94 1.8(2001 bottom end)
MSPNP 90-93 no maf
Misfire occurs most often between 5800-6200. Sometimes it'll get a blip at 5k. Very noticeable on the dyno graph. Changed coil, igniter, wires also tried adding grounds etc. Plugs are gaped correctly. Timing is staying true while watching with a timing light, however the light flickers differently during the misfire. Ive updated the firmware of the MSPNP, I have another PNP in another car im going to try also.
Log is from a 4th gear pull on the dyno
Thanks in advance!