Hirevhoon

I upgraded to ls2 coils on 04 I have tried finding info on this other than yes the upgrade will cause the light to come on but I have the code that says misfire the upgrade has been done new leads and new plugs my question is will I have to do a tune to remove this code

TeamRX8

iTrader: (25)

what country is the RX8 from, JDM models will throw a code.

or where did you buy the coils/what brand? There are people selling coils from overseas that are made with cheap junk internals, some are not even LS2 type internals; it has to be cut open to find out.

did you reset the “ESS profile”? This always has to be done after and ignition work or main pulley removal from the e-shaft. Search the forum if you don’t know what it is. Do this first, if so.
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Hirevhoon

I got the most common one could find it is also the same one drive by madness uses the Dragon Fire it’s from a company in California I also just did a ecu swap recently and I also reset the ess

Loki

iTrader: (1)

Driven By Madness is uh.. don't do what he does. Never heard of Dragon Fire, but based on their price being 1/3rd of what a good coil conversion kit costs, I'd not assume they're infallible. Is misfire the only code? Does the car have a cat? What other symptoms are present? What country is the car from? Why was the ECU replaced?

Hirevhoon

car is a US I had a code for bad ecm I do have any symptoms of a misfire the car has a high flow cat no symptoms at all the ecu has been throw code since I put in and even after I changed all the components I checked the spark plugs and they show none of the usual signs of a misfire

Hirevhoon

I have had the car almost 14 years

Loki

iTrader: (1)

What is the ECU code? There's not really a single code for that..

What is the make of cat? Do the misfires happen at high rpm?

Hirevhoon

I am not seeing any misfire I just get the code and the code was not for ecu but for engine control module there is a code for that

Hirevhoon

the new ecu since I put in even with old coil which were new stock coils threw a misfire code and still throw it after I replaced everything no symptoms of a misfire even no signs of one after checking the spark plugs idles at 1k and no lag in high rpms

TeamRX8

iTrader: (25)

typically for the misfire code the CEL will flash while it’s occurring.

you could just ignore it
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Hirevhoon

Issue solved it was a bad ssv solenoid