Difference was NIGHT and DAY!!!
Originally Posted by sjc1789
i just cleaned my injen filter yesterday... took bout an hour to take off clean an put back on.... my ride feels smoother now but not a big jump... ill look into the cleaner for the MAF
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ohhh boy!
Man, oh man - now u got me excited - for some time I have been really concerned about the sluggish bottom-end, and I have been searching for answers - sounds exactly what u are describing - What I am experiencing is (relatively) sluggish take-off up to about 3,000rpm, then it really kicks-in over 3000. In colder weather, it is much better, until the car warms up, then it bogs down.
I had a suspicion the MAF may be affected, now you have provided some indications that it may be - especially, as you say, on the earlier models (I have 03 too).
I got a dynapack dyno recently at SGP (a crappy dyno), it indicates screwed-up A/F ratio. The dyno is crappy because they dyno'd in 4th and it kicks back to 3rd. (am getting a re-do for free). When you dyno the 03's it needs to be done in 3rd (ramp-up to 3600), then power on. However, the A/F is around 14 until 3500rpm, then it drops to 13 thru the run
FWIW, peak HP was only 230, but I was more interested in setting a baseline and looking at the A/F.
Anyway, in addition, I got a loaner car the other day
while they did the AC TSB replacement - the loaner was an 05 5AT, and for comparison sake 
I tried a few standing starts - I could get the loaner to easily break loose from a mild brake-launch, whereas it is hard to get mine to spin. (although I do have better/wider tires (245/45/18)). It also felt zippier thru about 4500rpm, then I think my top-end was stronger (azz-dyno).
I will report back this afternoon after a MAF cleaning.... hoooo looking forward to this one....
FWIW; have you considered an e-fan conversion? I felt that was very worthwhile.
I had a suspicion the MAF may be affected, now you have provided some indications that it may be - especially, as you say, on the earlier models (I have 03 too).
I got a dynapack dyno recently at SGP (a crappy dyno), it indicates screwed-up A/F ratio. The dyno is crappy because they dyno'd in 4th and it kicks back to 3rd. (am getting a re-do for free). When you dyno the 03's it needs to be done in 3rd (ramp-up to 3600), then power on. However, the A/F is around 14 until 3500rpm, then it drops to 13 thru the run
FWIW, peak HP was only 230, but I was more interested in setting a baseline and looking at the A/F.Anyway, in addition, I got a loaner car the other day
while they did the AC TSB replacement - the loaner was an 05 5AT, and for comparison sake I tried a few standing starts - I could get the loaner to easily break loose from a mild brake-launch, whereas it is hard to get mine to spin. (although I do have better/wider tires (245/45/18)). It also felt zippier thru about 4500rpm, then I think my top-end was stronger (azz-dyno).I will report back this afternoon after a MAF cleaning.... hoooo looking forward to this one....
FWIW; have you considered an e-fan conversion? I felt that was very worthwhile.
Originally Posted by scorcher76
The easiest way to describe it was before cleaning the MAF, acceleration didn't felt linear, especially from a stop...as if something is holding it back from going faster...then as the RPM rises then you feel the surge of power and the car advances. In fact, when accelerating from a stop, i kinda feel hesitation for half a second, then a jolt and the car advances...
Alex
Alex
I owe you a beer. Please PM me your PayPal address.
Last edited by vodkarocket; Aug 16, 2006 at 11:38 AM.
I'm getting a amsoil "nanofiber" (no-oil, reusable) universal filter for my stillen intake.
When I am exchanging filters, I will clean the MAF as well.
which side of the MAF do you clean?
When I am exchanging filters, I will clean the MAF as well.
which side of the MAF do you clean?
Last edited by Neal376; Aug 16, 2006 at 11:51 AM.
Ive felt a jump in my car aswell. Could it be that my intake is dirty or has the same problem with the MAF sensor? When I wash my car or when the car has been sitting for a while and i start it up and touch the gas pedal to give it a little go it feels like its losing power then it jumps then acts normal.
MAF sensor then right? or dirty intake? I also have an '03
MAF sensor then right? or dirty intake? I also have an '03
Last edited by r15k; Aug 16, 2006 at 12:42 PM.
e-fan conversion?
Originally Posted by andycon
Man, oh man - now u got me excited - for some time I have been really concerned about the sluggish bottom-end, and I have been searching for answers - sounds exactly what u are describing - What I am experiencing is (relatively) sluggish take-off up to about 3,000rpm, then it really kicks-in over 3000. In colder weather, it is much better, until the car warms up, then it bogs down.
I had a suspicion the MAF may be affected, now you have provided some indications that it may be - especially, as you say, on the earlier models (I have 03 too).
I got a dynapack dyno recently at SGP (a crappy dyno), it indicates screwed-up A/F ratio. The dyno is crappy because they dyno'd in 4th and it kicks back to 3rd. (am getting a re-do for free). When you dyno the 03's it needs to be done in 3rd (ramp-up to 3600), then power on. However, the A/F is around 14 until 3500rpm, then it drops to 13 thru the run FWIW, peak HP was only 230, but I was more interested in setting a baseline and looking at the A/F.
Anyway, in addition, I got a loaner car the other day while they did the AC TSB replacement - the loaner was an 05 5AT, and for comparison sake I tried a few standing starts - I could get the loaner to easily break loose from a mild brake-launch, whereas it is hard to get mine to spin. (although I do have better/wider tires (245/45/18)). It also felt zippier thru about 4500rpm, then I think my top-end was stronger (azz-dyno).
I will report back this afternoon after a MAF cleaning.... hoooo looking forward to this one....
FWIW; have you considered an e-fan conversion? I felt that was very worthwhile.
I had a suspicion the MAF may be affected, now you have provided some indications that it may be - especially, as you say, on the earlier models (I have 03 too).
I got a dynapack dyno recently at SGP (a crappy dyno), it indicates screwed-up A/F ratio. The dyno is crappy because they dyno'd in 4th and it kicks back to 3rd. (am getting a re-do for free). When you dyno the 03's it needs to be done in 3rd (ramp-up to 3600), then power on. However, the A/F is around 14 until 3500rpm, then it drops to 13 thru the run
FWIW, peak HP was only 230, but I was more interested in setting a baseline and looking at the A/F.Anyway, in addition, I got a loaner car the other day
while they did the AC TSB replacement - the loaner was an 05 5AT, and for comparison sake I tried a few standing starts - I could get the loaner to easily break loose from a mild brake-launch, whereas it is hard to get mine to spin. (although I do have better/wider tires (245/45/18)). It also felt zippier thru about 4500rpm, then I think my top-end was stronger (azz-dyno).I will report back this afternoon after a MAF cleaning.... hoooo looking forward to this one....
FWIW; have you considered an e-fan conversion? I felt that was very worthwhile.
What is an e-fan conversion what what does it do?
Alex
Originally Posted by r15k
iVE FELT A JUMP IN MY CAR ASWELL COULD IT BE THAT MY INTAKE IS DIRTY OR THE SAME PROBLEM WITH THE MAF SENSOR? WHEN i WASH MY CAR OR EVEN AT STOPS AND i TURN ON THE CAR AND TOUCH THE GAS PEDAL TO GIVE IT A LIL GO IT FEEL LIKE ITS LOSING POWER THEN IT JUMPS THEN ACTS NORMAL...
MAF SENSOR THEN RIGHT?
MAF SENSOR THEN RIGHT?
Alex
Originally Posted by Neal376
I'm getting a amsoil "nanofiber" (no-oil, reusable) universal filter for my stillen intake.
When I am exchanging filters, I will clean the MAF as well.
which side of the MAF do you clean?
When I am exchanging filters, I will clean the MAF as well.
which side of the MAF do you clean?
1. Dismantle your Z-TUBE or G-TUBE.
2. Uncrew the bracking holding the MAF housing. Inside the housing, you will see a grill. I simply cover that grill with a towel and basically spray the cleaner from the other side of the housing tube directly onto the MAF sensors.
3. Enjoy your new performance!
P.S. I didn't need to dismantle the MAF itself from the housing.
Alex
Originally Posted by vodkarocket
YES! That is exactly what is wrong with my car. You don't have any idea how happy I am right now, I thought I had a serious and expensive issue to deal with on my car.
I owe you a beer. Please PM me your PayPal address.
I owe you a beer. Please PM me your PayPal address.
Alex
Originally Posted by andycon
I will report back this afternoon after a MAF cleaning.... hoooo looking forward to this one....