So we've been trying to figure out the issue with the secondary coils.
I tried two extra coils I had.
Swapped in the 1st one, and it still knocks.
Then, swapped in the 2nd coil, and still knocks.
So the problem had to be something with the timing of the secondary coils.
We checked the timming and all the wires to the coils. All checked out but the timming on the secondary coil was a little backwards.
I think there's something screwed up with the ecu.
Anyway I installed another primary coil inplace where the secondary coils go. And hooked them up with the main primary coil, so they fire at the same time, 0-split.
Still need to give them a proper test drive though.
Also over the weekend I discovered a problem.
I was driving it home from a car meet.
I noticed it started idling poorly and it would even die on me (3 times).
I try to rev it up, it would rev slowly.
It had no power.
It sounded like it was running on one rotor.
It was backfiring a lot too.
I thought it blew a seal.
So I was going to just limp it home, but after a few miles the motor came back to life.
Ran fine the rest of the day.
That happened 2 other times over the weekend.
If you just rev it up and hold it around 4k rpm it'll clear up and run like normal.
So I think my front iron coolant-seal-land broke through again.
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'89 RX7 GTU, half-Bridge-port S4/S5 NA, E6K, Full RB exhaust, weekend warrior.
'83 RX7, The "this might take awhile" project.
'87 RX7 GXL, Rest In Pieces.
'98 Subaru Impreza Outback-sport, rx7 rescue vehicle, down for repair.
'94 Ford Ranger, daily.
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