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Nismo_DriftKing

By Nismo_DriftKing,
in Victoria

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Nismo_DriftKing Enthusiast

Nismo_DriftKing

Posted
Posted

Hi

I need your help guys.... month ago my car was playing with RPM when i stop at lights, then suddenly car shuts down since then i couldn't start the car. then i have replaced the fuel pump.......car starts up and run for 1 week.......now the car wont start up without acceleration and also stalls while driving and at traffic lights. So far i have changed the fuel pump, idle controller , AFM, fuel regulator and canister...still cars stalls when slowing down......tried 2 other AFM's still same...basic computer readings are ok...............who can fix my car............i can bring the car anytime this week and i need low cost fault finding.Thanks in advance

Car : Nissan Skyline R33 RB25DET Series2 Auto 97000KM - stock car except POD

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FrangaR33 Mentor

FrangaR33

Posted
Posted (edited)

Electrical problem (dodgy earth or dodgy wiring), Perhaps not enough voltage is getting to the fuel pump and its not pumping through enough fuel, thats why it will start up when you give it some gas and why it will stall at traffic lights. If it isnt that then its most likely the injectors like Alvin said.

Edited by FrangaR33
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VSPECT Mentor

VSPECT

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Posted
Atmo blow off valve?

not to sound rude...but how can blow off valve effect the car in that manner...electric ground or injectors makes sense...also what about the spark plugs or coil packs...maybe if they are faulty the car wouldnt run properly?

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krzysiu Grand Master

krzysiu

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I suggested atmo bov because he said his car turns off when coming to red lights.

How it works:

Car detects airflow from the afm

The atmo bov vents the air

Computer thinks "oh shit" and adds more fuel because it's replacing the air that's meant to be there (via recirculation pipe)

Causes it to richen up and stall

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VSPECT Mentor

VSPECT

Posted
Posted
I suggested atmo bov because he said his car turns off when coming to red lights.

How it works:

Car detects airflow from the afm

The atmo bov vents the air

Computer thinks "oh shit" and adds more fuel because it's replacing the air that's meant to be there (via recirculation pipe)

Causes it to richen up and stall

Makes sense...but mosts of the cars have atmo bow off valves...are you saying that his blow off might be faulty and leaking too much air?...man didnt even think of that...great work krissy... :)

what about the plugs...can faulty plugs and coil packs coz that too?

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llama_au Grand Master

llama_au

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Makes sense...but mosts of the cars have atmo bow off valves...are you saying that his blow off might be faulty and leaking too much air?...man didnt even think of that...great work krissy... ;)

what about the plugs...can faulty plugs and coil packs coz that too?

Stock cars have plumb back BOVs.

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StealthX Veteran

StealthX

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lol dude you've spent alot of money just replacing things hoping that they will fix the problem. wrong way to go about it man.

Take it to a mechanic/workshop get them to diagnose it then fix it from there, instead of just replacing everything in hope lol

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VSPECT Mentor

VSPECT

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Posted
Stock cars have plumb back BOVs.

Ya i know but i was refering to CR33M's comment about atmo blow offs...just wanted to confirm that he was expecting the blow off to be faulty...not just having an atmo blow off in the car causing the issue...if you know what i mean...

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GUN_METAL_GTR32 Grand Master

GUN_METAL_GTR32

Posted
Posted
I suggested atmo bov because he said his car turns off when coming to red lights.

How it works:

Car detects airflow from the afm

The atmo bov vents the air

Computer thinks "oh shit" and adds more fuel because it's replacing the air that's meant to be there (via recirculation pipe)

Causes it to richen up and stall

this happened to me when i removed my bov

fixed up after i put in the ssqv

id def check coilpacks and injectors as well coz i had a few problems involving these at the same time as the bov issue.

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