1sicls1

it does seem to be running rich. i dont know if the previous owner had it tuned at all. i got this car from a dealership. today im gonna replace the o2 sensors on bank 1 and bank 2 and see if that fixes all these problems i got currently. i hope it does. my exhaust rattles kinda badly sometimes in lower rpms like around the 2000 rpm range im gonna see if any of the exhaust brackets are loose or missing, causing it to make those sounds when im accelerating or downshifting sometimes.

1sicls1

my room mates dad who works on fords at a dealership said its def a vacum leak. so im gonna try to fix that today. wish me luck!

TeddyKGB

If it always happens right around 2000-2200 it is probably just "drone". The aftermarket exhaust hits a point where it begins to resonate loudly and many seem to get that right around 2K rpms.

1sicls1

i took it to a shop they replaced my fuel pressure sensor on the fuel rail. my cars fuel pressure was running at 28psi insted of 40 psi. they cant figure out why its having trouble finding idle. if u leave it on for awhile the car will just die... if i had more money if send it back to the shop to have it fixed further.

angcobra

What kind of CAI does it have? I had the stall after power issue you have when I was running a MAC CAI. Changed to JLT issue went away.

1sicls1

i dont know the CAI has no markings. the mechanic took the K&N filter off and ran the car and it still had issues, then he cleaned the MAF and it still had issues. he said the way it runs it might have been tuned but he cant tell...

PSR

if you install a stock mid pipe and reset the battery the code will go away. or you can a set of MIL eleminators and install them that will also take care of the problem

1sicls1

could that be causing my car to turn off after it idels for a bit? or when i put it in nutral coasting it turns off too.... what can be causing that?

CobraBob

Congratulations on buying your 2003 Cobra! You're gonna love it. Since you're new to the 2003 Cobra, the FAQ page on my website will provide you some very useful info. http://www.stangshiftergaskets.com/2003_2004faqs.htm

1sicls1

thanks but i have already read that. do you guys think honestly this car is gonna be able to drive from chicago back to california in its current state. i drive it daily right now and it runs fine... should i be periniod of taking it cross country???