xalaskan

I picked up this car 10 months ago with only 33,000 miles. Great ride. 3 weeks ago I got a P0420 code according to my reader. It reset but came back on 4 days later. The car then sat for 4 days in the garage and went to take it out and it was turning over by didn't sound like it was firing. Looking up this issue revealed that an O2 sensor was very possible but saw that one condition was cured by disconnecting a negative terminal and another by changing plugs (plugs were all caked). I read that they had to be replaced every 30 months or 37,000 miles. I now have 51,000. I just changed them and did the terminal. Reset code and it still has the same symptoms except now there's a C1306 and a C2776 code. There seems to be a DSC and a Power Steering symbol that I don't recall seeing before??? P0420 isn't there anymore but might to be running for this to return.
Anyone have any ideas?

CelestialGryphon

iTrader: (1)

Plugs and coils and wires by 30k if on stock.

xalaskan

I'll try coil next. Just strange so low miles for coil assembly

Steve Dallas

I don't have time to look at your codes right now, but you need to read this thread in its entirety, if you have not already:

https://www.rx8club.com/new-member-f...4/#post4533701

Loki

iTrader: (1)

On other cars, yes. On Rx8s consider coils a wear item. One that will kill your engine if not maintained.

The dsc and steering wheel lights come on after every battery disconnection. They electric steering just wants to be recalibrated. Turn the wheel full left then full right.

Also the fact that you had a P0420 indicates that your catalytic converter may be partially clogged. Better safe then sorry, take it down and inspect it visually for clogging. See above killing engines if not maintained.

I've never heard of the C codes you mention and they don't make sense on this car (2776 is for multidisplacement engines?). What are you using the get the codes?

It's not clear if you got it to start since it would not earlier. If you haven't, it may be flooded, especially if the ignition is weak. There is a deflood procedure you could attempt: gas pedal to the floor, attempt to start the car for 5 seconds. Stop, wait 10 seconds, repeat. It will not start, don't worry. After 3 cycles, attempt to start normally. However if you changed the spark plugs, that should have cleared the flood condition.

ZiG

P0420 needs a drive cycle to come on, so no it wouldn't come on if the engine won't even start. The last time it was running, how long has it been running before you shut it off? What were the results of the compression test you did before you bought it?