well i just saw my PSM and ABS light go on during the drive back which is why I'd suspect the MAF...

i guess ill try to swap out the plugs soon.

 

Yes I have these...

 

i guess ill go with the DENSO that everyone recommended... i too have heard iridiums work better than platinum which is why i went with them.

 

can someone just confirm that ABS and PSM lights turn on when plugs go bad?

 

mine did not.

 

I think its the maf when those lights go on, the plugs generally throw a CEL light then the " Drive to garage " and when normal driving it goes away.....sometimes plugs don't even throw codes or a light..so It seems. I am going thru my own issue right now with sputtering, mine may be due to a recent DV upgrade.

 

see thats the thing. i didnt get a single CEL but rather a ABS and PSM failure telling me to drive to the workshop.

 

Sounds like MAF, how is the car idling? What I have read is if the car idols fine and boost is OK until 4 or 4.5 k then its the maf, if it sputters before that its plugs.

 

idles perfect. boost is perfect and car pulls really hard till 4k where it just studders really hard. once it hits 5k it seems to pull hard again... only way around this ive seen is to shift to a lower gear pushing more than 5k and pull from there. every other gear never goes by 4k so it never studders again.

 

EXACT same problem I am having....only difference is I haven't seen the ABS or PSM light. I think our problems are 1 of 3 things
1) Plugs
2) MAF
3) Vacuum leak ( I think this may be my problem due to a DV issue )
I am going to get the car's codes read, even tho my brokway is seeing any there may be some)

 

well mine is just limited to do.. the DV's have been installed a long time ago and have never given me any issue. :P

i think i might go with the MAF first since the ABS and PSM lights point me towards the MAF more than the plugs.

 

Yea I will let you know what it turns out to be on my sled, let us know if the MAF fixes your issues.Its the way we learn! Good luck

 

its just kinda sad because i just replaced my MAF about 4 months ago.

 

What were the symptoms when that one went bad? Anything related to this issue?

 

same thing. when i downshifted to go hard it would stumble at first but pull hard after... no ABS or PSM but a CEL that said the air/fuel reading was off.