how much a difference cleaning your maf and K&N airfilter will make the car feel. Unfortunately, I'm still getting this erratic putt putt putt putt at idle. I thought the maf and air filter being dirty might be the cause of it.. Anyway, the car sure 'feels' different in the butt-o-meter.

 

how did you clean the MAF sensor?

 

should have used the MAF cleaner from pep boys or wherever you prefer

 

there's a diy for it, but you basically buy a can of MAF cleaner at the auto parts store. Remove the MAF, spray, careful not to touch any of the little bits... dry and done.

 

then you need to reset the ECU and drive around for a bit

 

reseting the ecu is that 20 brake stomp procedure correct?

 

20-brake pedal stomp only resets some of the parts of the ecu, but it does reset the e-shaft sensor and fuel trims, which are what matters here.

 

Yep one step i forgot to do when I cleaned my MAF. Then I went to the NJ meet, so I got about a good 300 or more miles driven after doing the MAF cleaning.


Wonder if I need to still reset the ECU

 

Over time, it will 'reset' itself, as it adjusts. Resetting just speeds up the process.

I've actually been resetting it every 3 days recently, as about 7 days from last reset I start feeling very noticeable power loss down low. Haven't found a reason for it, but resetting the fuel trims seems to restore lost power for about a week.

Ignition is all new, cat is new, MAF is clean, etc...

 

http://www.rx8blog.com/how-to-reset-ecu-on-mazda-rx8/

20-stomp brake pedal method only resets e-shaft. To reset fuel trim you have to disconnect the battery for 10+ minutes.

 

Everything I have seen and felt says that the fuel trims are reset with the 20-brake pedal stomp. I'll see if I can find the manual PDF on here somewhere. There is another procedure that clears the other half of the ECU, disconnecting the battery does both.