well i've had my car tuned late last year and since the colder weathers hit the cars just been out of tune and running like hell. The other day outta nowhere it was 55 degrees out and the car turned over and cranked easy as pie and now the temp went down and is in the 20's and 30's and it takes some time for it to crank before it will turn over. Do you think it could be the tune i got done or what because i'd like to have it tuned so it's good for all weather types if thats possible.

I have my cat gutted out and the 02 is hooked up, could that be causing some problems to do with this as well? i didn't get a chance to do the casper o2 sim mod to it yet. thanks.

well im running rich and when i start my car it runs like piss for like 2 mins then smooths out.....i think it has sumthing to do with it being cold aswell....cause sumdays itll start up perfect others it like to backfire and run like crap at startup


you scratch my ride IMA EAT YO CHILDREN

Could it also be colder plugs causing any of this?



2009 Ford Mustang V6

what viscocity oil are you using?

10w 30, nothing thick at all. i just changed the oil about 4 days ago.

BOOSTED wrote:10w 30, nothing thick at all. i just changed the oil about 4 days ago.

Why are you using 10w 30, when our cars call for 5w 30. 10w 30 would be fine for the summer, but I would be using 5w 30 for the winter.



PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

10w 30 is fine, theres nothing whatsoever wrong with using it

Coolant temp sensor in good shape?
What was the car tuned with?



fortune cookie say:
better a delay than a disaster.

what kind of cold cranking amps for the battery are you looking at? if you got a cheapo from walmart don't expect too much.