Fuel Starvation vs Limp Mode

Bshields22

Hey guys,

How do you know if you are experiencing fuel starvation vs limp mode. I assume fuel starvation is a quick bog down, like during the duration of a turn and limp mode lasts quite a while. Sound accurate?

__________________
308 rwhp | 252 rwtq | Fast Intentions CBE 18" Res | Stillen Gen 3 CAI | EcuTek Tune | Stoptech Slotted Rotors and Sport Pads | KW V3 Coilovers | SPL Upper Control Arms & Lower Rear Arms | Seibon CF TS Hood | Vossen CVT | SPC Toe bolts

kenchan

limp mode is exactly dat. you can drive your car but at a slow speed..to get you off the highway or get u into a side street.

fuel starve you'll sputter out and no engine start.

kenchan

actually i meant to type fuel starve you'll sputter out and engine cut.

Nismodean

I have experienced both. Fuel starvation is when you were taking a long right handed turn and typically you were at one half tank or less. The engine dies and you have to put at least a gallon of gas into it to basically reset it so that it will start again regardless of the actual fuel level.

I have also experienced getting the engine up to 3500 RPM and all the sudden all power is lost until the revs drop down. I have tested this and it occurs in every gear when it is acting up. This is happened to me while driving long-distance and during short trips. If anybody has an explanation for this please let me know.

__________________
The Truth, it hurts sometimes. FI LTH & FI CF CBE. This is a 370Z forum, if I want to fling poo at another brand of car and your feelings get hurt, then you're hanging out in the wrong forum (cry elsewhere).

Haboob

Does limp mode involve any lights on the dash? I forget.

I know that my car will go into a limp mode (or similar) upon start-up. It will still rev to/above 4000rpm, but very, very slowly. There's no power at all. Generally occurs more in the cooler months.

Then I have to shut it off for about a minute and restart and it's back to normal. No codes, nothing. It's strange.

SouthArk370Z

I don't remember if there is a dash light but a DTC should be thrown. Get an OBD/CAN tool and see which code(s) is present while limp mode is active.

__________________
Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub
Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

Haboob

I've got one. I'll have to try it to see if it's throwing any sort of code, but not illuminating a light.

Only code I know of that I have is for the O2 sensors due to the HFC's. And hell, that's not even being thrown at the moment.

DavidZ370

limp mode is only for the AT loosers

Zbrah

__________________

mishuko

limp mode is after you have sex.

fuel starve is when you try blast again after sex.

similiar in that you can't perform.

different as in different causes of lack of ability.


could also be because MAF in the intakes are dirty as well...

birdman71

I've had this happen too and I have no clue what it is, I usually shifted into the next gear and pumped the gas pedal a couple times until I got the engine to rev and go again.

__________________

Birdman's Build:
Powerhouse Amuse/ Nismo/ Eibach/ ACT/ Tommy Kaira/ Avant Garde/ Fast Intentions/ Project Kics/ Fly 1 Motorsports/ EVO-R/ Z1 Motorsports/ Weber Sports/ Zoom/ Zele Japan

Zbrah

Happy to report I hit "limp mode" yesterday afternoon, and it was gud!

__________________

Nismodean

So does anyone have an explanation for this?

__________________
The Truth, it hurts sometimes. FI LTH & FI CF CBE. This is a 370Z forum, if I want to fling poo at another brand of car and your feelings get hurt, then you're hanging out in the wrong forum (cry elsewhere).

mishuko

clutch burnt?

csc?

links?

synchro's?

DavidZ370

hope it wasnt with a dude