R33 Stalling At Low Revs?

[hayden49]

hey guys,

picked up my r33 which passed all the inspections but i have a problem.

the car randomly stalls at low revs.

i have heard that this can be caused by the bov?

i am running a turbo smart type 2 which is plumbed back.

its really weird, ill boost the car then slow down say, for a corner and when im sitting waiting in neutral the revs will jump up and down then the car will stall.

do i have to adjust my bov? or is somthing else causing this?

sorry for the newb questions.

cheers

[paulr33]

factory ecu reset should fix this

[LatinR33]

could be blow off valve just change it to the stocker and see if it helps. Also get your cars ecu plugged up to a consult and check the tps and other sensors.

[LatinR33]

also yeh as mentioned try ecu reset- just disconnect battery, turn lights on pump on the break like 5 times to drain car of all power and reconnect battery and go for a drive.

[hayden49]

to reset the factory ecu i have to unplug the battery for a few hours?

as for the stock bov, i dont have it as i bought the car with the turbo smart already installed.

failing that im booking my car into a performance shop nearby which do good work for a full service/tune and hopefully they'll be able to iron out the problem.

[hayden49]

so while the car is turned i:

1. disconnect the battery

2. turn on the lights and pump the brake peddle

3. reconnect the battery

4. turn the car on and go for a drive.

is that right?

cheers

[LatinR33]

Well have the car turned off and just disconnect the negative terminal you dont need to disconnect the two.

Edited April 22, 2006 by LatinR33

[hayden49]

does it matter whether i disconnect the negative or the positive?

the positive is easiest to get to as the negative term connection is facing away from me and will be a prick to get un done.

[LatinR33]

Well ive always taken the negative one off so yeh not to sure there sorry.

[GTS25-t]

ive just bought an r33 gts25t with the exact same problem, someone told me it might also be the air flow meter?

[LatinR33]

can be the air flow metre,it can be a gummed up AAC valve it,vacuum leak. just have to play the elimination game.

Edited April 22, 2006 by LatinR33

[hayden49]

well i took the terminal off for a few mins and made sure no power was left in the car and took it for a drive all was fine until.... came back up my drive in 1st, put my foot on the clutch to slow down and bleh.... i lost power steering for half a second and i thought the car had died but the revs kicked up and it kept running.

this is really not cool aye, when i take it to the peformance shop ill get them to check out the afm and all that.

cheers

[LatinR33]

Hmmmm thats wierd hows it running now though??

[hayden49]

the car is running fine, when its not idling.

the few times its almost stalled, the battery light has come one when the revs are jumping up and down and the car feels like its going to stall but doesnt.

could it possibly be the idle bypass valve sticking?

if i come up to an intersection in 4th, stop, and put my foot on the clutch the car is fine, but if i stop put it in 1st and roll forward then stop, the car starts having a fit and the revs jump up and down and the car shudders like its going to stall.

any ideas?