Car cutting out!!! when driving.

[dabigbolf]

hey,

i am driving along, slowing down is usually when this occurs.

And the car shuts off. What would cause this to happen. I have tried looking for lose connections, but everything seems fine. its just when i approach rounabouts, and prepare to stop the car shuts off.

I turn the igntition back on, and theres no problem.

Then it will happen again.

What could cause this to happen.

It really makes shit to drive , as you also get no brakes. (i am getting a 1 way valve tommorow, along with power steering lines.)

but yeah, car ccutting out...

Cant see it being fuel pump, as i got an 040 one, and plenty of petrol.

cheers

[SHUTO-BOY]

i think getting an safc will solve your problems mate

[memphis]

vent to amosphere bov more than likely

[Cubes]

Simple.. Don't slow down and coast.. Use your gears, it will keep the engine spinning and you will keep your brakes/steer.

[Amir]

happened to me again yesterday at an intersection. No steering........damn dangerous.

[MattyB]

no steering or no power steering?

[dabigbolf]

i dont have power steering hooked up...

i dont have a BOv, so the non venting this doesn't apply.

It also happens when your in down changing.... I thought yeah, i'll just drive into corners, but then you get this massive thuddd from the clutch, as the car wants to cut out, but cant cause i am in a gear....

no blow off valve, power steering coming next week, so i dont really know what it could be.

[Nismodified]

i sometimes get this problem as well.

Just as im slowing down, or just stopped, everything cuts out.

its a good thing it only happens when your not moving, but its a disconcerning.

[boostimports]

use to happen to me ... u get use to it. just keep the revs a bit high. lightly tap ur foot on the acclerator. I have aftermarket BOV too - not plumback (cause of the issue) appearently

good luck

[gtrhybrid]

check for vacum leaks or test your afm(s) for correct signal.

[dabigbolf]

some have said it could be cause of excess dumping of fuel...

i do have a bosch 040 fuel pump.... and not producing really all that much power...

so maybe to much fuel getting to the motor.

will go for tune, once i get power steering lines done.

i'll get air flow metre checked also.

cheers

[gtrhybrid]

Feul pump wont make you run any richer. You at least have a stock fuel pressure regulator that will take care of the pressure in the fuel rail. All the aftermarket fuel pump will do is make sure your engine wont out flow it under heavy injector duity.

[OVL-747]

it definately could be a fuel problem dude

though it shouldnt happen if ur just slowing down or coasting

anyway , sometimes depending on ur selection of turbo etc , when u back off pretty sharply the throttle body closes and all that ait goes back thru ur cooler , thru ur turbo and the out the afm , afm's meter the air that passes over the hotwire , so it doesnt matter which direction it is flowing , therefore it see's all this air and inturn tells the computer to squirt more fuel (supposedly to mix with the air)

anyway , too much fuels dumped into cylindar m washes out spark , doesnt fire and stalls.

but like i said it shouldnt happen if ur just slowing down , will happen if u gun it , back off and then slow down.

try tapping the accelerator as suggested , keep the revs up a bit

[Nismodified]

i doubt it will be a BOV problem or turbo issue.

Like i said, i had the same symtops, and my car is NA. I think my fuel pump has been changed in its life though.

[OVL-747]

something is tricking the computer into believeing that there is air coming in which needs more fuel to mix with , or ur injectors arent functioning correct and are staying open (elec problem) , or ur ignition circuit somewhere isnt right , might be as simple as a crank angle sensor , or it may be the loom plug that connects to ur coil/s. could be a pain in the arse to find or it could be right before ur eyes

or u have a fault in the engines electrical side of it , maybe a slight un-earthed wire , causes it to stall etc.

good luck hunting it down

[HER-R33]

im with gtrhybrid - air flow meter. Mine was on its way out and caused heaps of problems including the car cutting out. Got it replaced and running fine ever since.

[dabigbolf]

few things i will have to check over....

will let you know how i go.

i reckon afm big possibilty

[gtrhybrid]

If you think its a fuel probelm I will say its not from your fuel pump, its more like a bad sensor sending the ecu in LIMP mode. Which makes you run extra rich. Clean afm plug(s) and see if it makes a difference. It did for mine.

[Bill]

Take it to an auto electrician.

Sounds electrical/sensor related.

If you dont have the knowhow or the tools you will have a bugger of a time tracking it down.

[Bozz]

Your AFM is fine, the problem is you dont have a BOV at all, when you back off the throttle after using some boost, you get the fluttering noise through the induction. That noise is air rushing back and forth past your AFM. Unfortunately, AFM's aren't clever enough to know whether air is going backwards or forwards past them and simply meter it as air going into your motor. Its just as bad as having an atmo venting BOV.

Connect your recirculating BOV and it will fix all problems.