Ignition coil Denso or HITACHI

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 changed all 6 coils on mine for those last year and they've worked without any issues.

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 also ordered four (4) new ignition coils from Hitachi, installed them 60 miles ago and it's been smooth since the installation. My car is quieter, more responsive, and idles better. No, check engine lights at all.

Did this conversion on my 2001 Audi A4 with a standalone. I ran it with stock (3ms) dwell and up to 5ms dwell and didnt notice any difference. I was running Hitatchi coils before and would notice slight bumps in idle. Now all I hear is smooth butter at idle.

The old AWD hitachi coils are far more reliable in my experience. I would not change to the awp style from the bolt downs. I have had ~8 failed AWP coils over the years on my 2001 audi/2002 gti and I have 8 hitachis now in my 2 1.8t's for a few years now and no hitachi failures. This is with track days on the gti. They also bolt down so you won't have them popping up on you whack a mole style like the awp ones sometimes do