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The place for your 2003-2012 RX-8 questions and discussions! For owners, prospective owners and RX-8 enthusiasts.
Preferably in the south east
Hey guys. I’m having some trouble diagnosing a constant P0335 / P0336 code.
This is usually caused by some debris in the ESS since its a magnet - but this has been happening with increasing frequency over the last month.
Last time I drove her - I just finished changing the oil back to 10w30, replacing the oil filter, cleaning the ESS, MAF and air filter (just routine maintenance). Started her up and drove about a bit - came back and left her sitting for the night. Next day, started her up to uneven idle and the symptoms of a clogged sensor, which didn’t make any sense. Drove her around for a bit to confirm the code on the OBD2 reader - and then she suddenly shut off on me when I came to idle speed. That was new.
I got her to run a bit and then looked around the ESS to see if got clogged. It was clean. Got my laptop out and started logging the readings I was getting at idle and load with the help of my mechanic. He went ahead and looked for a connection or wiring issue, which didn’t turn up much. He then got a hold of a new sensor to test with and the code still came back.
Reset codes and tested again. Started fine. Drove about for a bit - code returned. Nuts.
I looked at the sparkplugs to see if they were fouled with oil and all the various gunk - nope. They looked fine too. Reset codes and drove her again the following day, and the code came back a 2 days later.
Issue seems to random / intermittent. We’re stumped.
Before you say low compression - I tested that already. Numbers look good (around 8.3 bar).
I found this forum post about RX8 facts and thought you guys might like them! There are loads more in the post, interesting stuff for owners :)