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-   -   Car can't be tune, and not making power. Reaching out to community for help (https://www.evolutionm.net/forums/evo-general/740237-car-cant-tune-not-making-power-reaching-out-community-help.html)

Welcome2GoodBur May 19, 2017 06:54 PM

Car can't be tune, and not making power. Reaching out to community for help
 
All issues sorted out thanks to TOM @ TSCOMPTUNED :)

RightSaid fred May 19, 2017 07:54 PM

It'll be your fuel pressure.


As always with a swapped pump.


Originally Posted by Welcome2GoodBur (Post 11740683)

Fuel pressure test, everything looks good.
Boost rises with fuel pressure.



Everything looks good........to Stevie Wonder

Welcome2GoodBur May 19, 2017 08:07 PM


Originally Posted by RightSaid fred (Post 11740696)
It'll be your fuel pressure.


As always with a swapped pump.




Everything looks good........to Stevie Wonder



That made me crack up, thanks for that.
Now, I am told that fuel pressure was checked while on Dyno, and I feel that would be something readily apparent, no?

nemsin May 19, 2017 08:45 PM

Put it back to stock and see if it can be tuned. Then re-add mods in stages.

RightSaid fred May 19, 2017 09:37 PM


Originally Posted by nemsin (Post 11740704)
Put it back to stock and see if it can be tuned. Then re-add mods in stages.


Yes, that's what you do when you get completely stuck.


Mods should be done one at a time, check for errors after each mod.




So .......there's no fuel pressure gauge.
Need to fit one?


With more than one mod, there's always more than just one thing wrong.
Much more.

Welcome2GoodBur May 20, 2017 11:38 AM


Originally Posted by RightSaid fred (Post 11740706)
Yes, that's what you do when you get completely stuck.

Mods should be done one at a time, check for errors after each mod.



So .......there's no fuel pressure gauge.
Need to fit one?


With more than one mod, there's always more than just one thing wrong.
Much more.



So, in response to the mods:
The cams were done first. I think everything went fine with that.
**** really hit the fan when the fuel pump and intake were installed actually. Prior to the cams, I put the intake on and it ran FINE alone. Then installed cams, alone, and they seemed fine (except for rough idle, but the car seemed okay).

I will install a AFPR gauge this week to check for that side.
Worst case, Ill take it back to stock, but my concern is that then
I may just have a stock car with the same issues... the behavior makes no sense. I don't understand why only 20% of the power is available.

Lui55v May 20, 2017 12:01 PM

Well heres my silly response but what about the throttle position sensor? Maybe if it aint reading right it wont let it go to 100% power on the map for failsafe??

Welcome2GoodBur May 20, 2017 12:33 PM


Originally Posted by Lui55v (Post 11740760)
Well heres my silly response but what about the throttle position sensor? Maybe if it aint reading right it wont let it go to 100% power on the map for failsafe??



Thats not silly at all!!! I had the same thought!! Especially since that got touched while doing cams. I think I'm going to start there. Picking it up tomorrow and starting diagntocis this week. Ideally I'd like to test it before I just grab another they seem pricey

Welcome2GoodBur May 20, 2017 07:49 PM

UPDATE: TPS Swapped/ No change

Ians06 May 21, 2017 04:52 AM

What do you mean the map is only showing 20%? You mean you are not able to go over a certain load?

Ians06 May 21, 2017 04:55 AM

Also I pm'ed you.

IzzyRS May 21, 2017 05:50 AM

You said you fuel pressure was checked? Maybe the pump is not sealed properly in the hanger and is unable to keep up with demand. Did you install the pump with the install kit, or just reused everything from the stock pump?

Welcome2GoodBur May 21, 2017 10:03 AM


Originally Posted by Ians06 (Post 11740864)
Also I pm'ed you.

Yup thanks I'll reach out in the next few days, I work 12 hour shifts so I don't have time until a day off

Welcome2GoodBur May 21, 2017 10:04 AM


Originally Posted by Ians06 (Post 11740863)
What do you mean the map is only showing 20%? You mean you are not able to go over a certain load?


I have not been able to fully grasp the explanation given by tuner. My understanding is that when at WOT or really laying on it, it hits what appears as fuel cut. I'm going to pick it up in an hour and drive it home, I'll report back what it feels like when driving

Welcome2GoodBur May 21, 2017 10:05 AM


Originally Posted by IzzyRS (Post 11740866)
You said you fuel pressure was checked? Maybe the pump is not sealed properly in the hanger and is unable to keep up with demand. Did you install the pump with the install kit, or just reused everything from the stock pump?


i bought an install kit. We even swapped the 255 with another to check it, with no change


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