rb20 coilpacks???

[ibzbro]

I am getting a miss at full throttle and it has started to happen more often. Is there anyway to check to see if the coils are bad? I know they get hot and are know to crap out. What are the signs? 300zx or mabye plusars for replacements?

[PROJECTRB240SX]

REPLACEMENTS ARE 1990-1994 Q45 CYL 1 OR 2 BOOTLESS.

THE BEST WAY TO CHECK IS TO HEAT THE COIL TO OPERATING TEMP AND CHECK CONTINUITY ALSO CHECK CONTINUITY AT AMBIENT. IT SHOULD HAVE AROUND 1.2 OHMS OF RESISTANCE.

[ibzbro]

i did check continuity and they were all between 1.8 and 2.3. and that is between the nevitive and positive. at ambient

Edit: they are all 1.3 now

[PROJECTRB240SX]

THAT SHOULD BE FINE NOW YOU HAVE TO CHECK THEM AT OPERATING TEMP..... REMEMBER EPOXY EXPANDS AND IF THERE IS A BREAK IN THE COIL IT'LL SHOW WHEN THE EPOXY IS AT FULL EXPANSION (OPERATING TEMP). IF THE COIL TESTS AT INFINATE OR 0 YOU HAVE A BAD COIL..... IT NEEDS TO RETAIN RESISTANCE.

[ibzbro]

i have noticed that there is discoloration and what looks like heat markes along the side of the coil by the metal part. any insite?