i got my PCM tuned by MTI and just ran an a-tap run on the expressway today. my 02s are right at .89-.9. however, my timing is 23-24. i took the maft off when i got the tuning done.

before the tuning, and with the maft on i had the same 02s, but my timing was dead on at 28/29.

will the maft help bring my timing back up without messing with the 02s? im a little confused.

BTW: no TM is SWEET!

 

<img src="images/icons/confused.gif" border="0">

 

how can no one know?

 

So.... are you getting any knock? How many if any degrees of retard ya getting?

jc

 

no nock at all. didnt see any at part throttle or WOT.

 

Do some more Autotapping to confirm that you are never getting any KR. If still no KR but low timing I'd give MTI a call. It shouldn't be that low for NA use.

You might lean it out a bit with the MAFT but I don't think you'll get it back to 28 degrees without leaning it too far.

 

Run a few more. I've seen low timing before from KR that was only happening about every 5th time I'd check it.

 

i ran two logs, both had no kr <img src="gr_sad.gif" border="0">

 

doesn't it keep the timing low for X amount of miles after the knock occurance?