What would be causing this.***UPDATE***
07-16-2007, 03:20 PM
#31
The fuel pump voltage on returnless cars are controled by duty cycle (via fpdm) and if the pump is not compatible the pump will draw more current shuting the fpdm down..setting the 1232 dtc...its not the fuel pump size thats the problem.You need to fix this issue first...
The reason i asked if 255 was the biggest is because pat from steeda said 255 limit is 450ish HP.....
so if it is the wrong pump, i was just consider going bigger.
Is there a way to tell if the pump is for a returnless style car?
it went into place nicely.
07-16-2007, 04:41 PM
#32
Originally Posted by White_Snake
I was thinking IAC also, but now that you mention the T.P problem, i know that i have to snap the throttle to get it to come down after driving it. also push back the throttle when under hood to get it to come down more. but that does not explain why it would go up and down when the fan kicks on.
As for the fuel pump code, I'm not too familiar with running non-stock pumps in returnless fuel systems, so I'd listen to Nick on that one.
07-16-2007, 04:43 PM
#33
ok thanks nick.
The reason i asked if 255 was the biggest is because pat from steeda said 255 limit is 450ish HP.....
so if it is the wrong pump, i was just consider going bigger.
Is there a way to tell if the pump is for a returnless style car?
it went into place nicely.
The reason i asked if 255 was the biggest is because pat from steeda said 255 limit is 450ish HP.....
so if it is the wrong pump, i was just consider going bigger.
Is there a way to tell if the pump is for a returnless style car?
it went into place nicely.
07-22-2007, 04:21 AM
#35
CMOC Addict
Join Date: Oct 2004
Posts: 636
Don't take this the wrong way but reading your posts makes my decision easy,
Step 1: Get car running with base tune, make sure there are no leaks etc.
Step 2: Drop car off at Tuners
Step 3; Pick up car when it is running perfect or blown up.
LOL
Step 1: Get car running with base tune, make sure there are no leaks etc.
Step 2: Drop car off at Tuners
Step 3; Pick up car when it is running perfect or blown up.
LOL
07-22-2007, 03:17 PM
#36
i got three tunes off of steeda, +5% fuel tune was WAY is rich. base tune is way to rich, and -5% fuel is rich.
closest tuner would be dasilvas, and even at that they are over an hour away. the steeda @ 2 hours away. i have been talking with cobraNT though.
But that is what i am doing, making sure there is NO mechanical problems left so their job is easier.
07-29-2007, 10:05 PM
#37
Well thanks to Nick and Chris that let me borrow their wideband, we made a couple pulls down the 401.
Well after some pipes blowing off from the boost we finally managed to get 11.0 for A/F ratio!!
It is running alot better.
BUT we had to drop the fuel pressure down to 25PSI (VAC OFF) to get it to lean up.
We started off at 8.X A/F ratio.
So my tune is a WEEEEEEE bit rich!
It is idling a lot better, and does not want to die as much when the fan kicks on.
So we are figuring it is all in the tune now, and nothing mechanical!!!
Well after some pipes blowing off from the boost we finally managed to get 11.0 for A/F ratio!!
It is running alot better.
BUT we had to drop the fuel pressure down to 25PSI (VAC OFF) to get it to lean up.
We started off at 8.X A/F ratio.
So my tune is a WEEEEEEE bit rich!
It is idling a lot better, and does not want to die as much when the fan kicks on.
So we are figuring it is all in the tune now, and nothing mechanical!!!
07-30-2007, 01:13 PM
#39
I am going to be buying one very soon, the same one.... I love the layout, it seems to be user friendly etc...
Yes we hit 11.0 A/F under WOT @6500RPM
Idle/driving is around 10.0 A/F still much rich but the cars seems to be performing much better.
When we started the first drive with the W/B on it... the car was idleing and hitting 9.3 A/F when the Cobra got released in WOT mode in 3rd gear it went directly at 8.4 A/F running stock 39.5 Fuel PSI (Vac off) just horrible!!!!
Still feel sorry for the person behide us
....lol
