Honda OEM Denso coils only. This other stuff is junk.
I got all 6 of my ignition coil for my 4Runner for the price of one at autozone. They were Denso oem for Toyota.
I just I bought this Denso coil for my LX470. By all accounts its the exact same part and the 'yota forums agree.
I found some coils made by denso 673-9303 (i.e. Toyota) on Amazon for around $18 each. They've been troublefree since I put them in about 1K miles ago. My original Audi coils had 81K miles on them. They greatly improved the low speed shift quality and idle smoothness after I put them in.
I replaced the old ignition coil with a Denso one. The car is running great after the replacement.
Make sure to spend a little extra and get the Denso brand coil. The cheap one don't last very long.
Short answer - it was the ignition coil. In the end - it serves as a reminder that just because a code (or lack of) seems to point to a specific component, you MUST diagnose. ECM costs $300 - $1000 including coding - a Denso ignition coil was just over $100.
I'd replace the FPR with a 3BAR since they are cheap and easy to replace and considering your mods. New coolant temp sensors for the same reasons as well even though you state they are ok. Coil could be an issue, no real need to upgrade the factory ones but a new one could resolve the problem (Bremi coils are using STI [brand not car] windings in the units).
Just installed the new coil and the car runs great. Very pleased with the results.
Put in the new coil (Denso best available here off shelf)- and did quick hook up test for spark. NO SPARK at all.
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