fserrano84

iTrader: (4)

Car cuts out around 5500 rpm in first and second gear only motor does not shut off or anything It just gets to 5500 and feels like I let off the throttle Car is a turbo car on e85i have had this issue on last build which was mostly stock lq4 then I rebuilt it and upgraded several things I was thinking it was the tune since I tuned it now after the new build i had it tuned professionaly and stills does it only in 1st and 2nd gear 3rd has no issues car is a manual transmissions any ideas on what it could be

svslow

Which ecu, spark plugs, cam valve springs?

fserrano84

iTrader: (4)

Stock ecu br7ef gapped to .024 also tried .028 btr dual valve springs with titanium retainers good for .660 lift
235/231 | .635"/.605" | LSA114+6

Old Geezer

iTrader: (3)

If you tuned it, do you have the tune and log[s] to post?

fserrano84

iTrader: (4)

Yes I can post that up I'm going to try and log it tonight is there anything specific to be logging

3 window

iTrader: (1)

Fuel slosh? Harder acceleration in first and second than in third. Run the rpms up slower in first and second and see if it does it. Log fuel pressure.

fserrano84

iTrader: (4)

Sounds very likely put could it still do it with a full tank. I cut up the stock bucket to fit dual pumps

3 window

iTrader: (1)

Not likely with a full tank. Are the pumps bottomed out in the tank causing a starvation? Figure it'd do it all the time then, but anythings possible.

fserrano84

iTrader: (4)

The bucket itself is bottom out not sure is it suppose to or not but the pumps I don't think they are I need to double check them too. My wideband does read extremely lean right after when it happens

3 window

iTrader: (1)

Monitor pressure when it does it. If the pressure stays up, could be you need more fuel in that area of the tune. But again, wouldn't explain why third gear is unaffected.

Old Geezer

iTrader: (3)

3rd gear is a lower rate of acceleration..

fserrano84

iTrader: (4)

its been raining so i have to wait to get a log but heres the tune file

3 window

iTrader: (1)

Mentioned in post #6

93camaro_zzz

iTrader: (13)

What does the AFRs show when it breaks up? Simple stuff first: make sure all the grounds are tight.

fserrano84

iTrader: (4)

afr is all good when it happens unless theres a lag in the wideband reading on the scanner and it also seems to be an intermitten problem now
i dont have a way to check fuel pressure

fserrano84

iTrader: (4)

go to 4:30

fserrano84

iTrader: (4)

I think I finally found out what it was and it was my own stupid fault. I will post more later I have to go to work

V-10 Killer

iTrader: (22)

So, what did this wind up being?
It's got me curious because I noticed mine seems to studder around 6200 and 10 psi.

fserrano84

iTrader: (4)

I installed a n2mb 2step/wot box and didn't mess with the setting on it thinking it wasn't activated. So every time I was about the go for the next gear I would put my foot on the clutch pedal and the switch on it was set extremely sensitive and would activate the no lift shift feature with the slightest of touch on the pedal. then it would cut off the ignition