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R33 Rb25 Running Ruff, Surging, An Wants To Stall ?

turbots
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turbots Rookie

turbots

Posted
Posted

HI ALL

new to this site

iv got a r33 gts-t

wen you are starting to put your foot on accelerator

just as it starts to spool up

sum times the power cuts out

stil runs etc

but just seems like ya took ya foot off the pedal

but you didnt

doesnt do it for long

then it just kicks in an goes!!

kinda seems like corners are stuffing around with the problem

like wen ya cum out of a corner an you start putting ya foot down

thats wen it does it mostly

and its auto

an if you put ya foot down quickly then take it off just as the boost starts cuming on

it goes to stall bad an runs really ruff, like the idol is hunting

been thinking that iv prob got more then one problem haha

an maybe tps an oxy sensor are sad

any help would be gr8

thanks

turbots Rookie

turbots

Posted
  • Author
Posted
Keep in mind that it IS only a guess. You need to properly test them to find out whether they are faulty

thanks mate... i really thought it had sumthen to do with the pump at the start!!

coz it did seem like is was worse wen low on fuel!!!!

but thought if it was it wouldnt be to good at full noise!!

cheers

turbots Rookie

turbots

Posted
  • Author
Posted
No, fuel demand is greatest at peak torque which, in your case, is around 3,000 rpm most likely.

dam that was fast.. you musta been waiting haha

thanks..

peak torque at 3grand?? is you for real mate??

i'd say its got nothen under 4500rpm an doesnt start pulling to 5500rpm an at 7500rpm its nice he he :D

it seems to be electrical, well i thought any way..

its only wen you start to accelerator from backing off or braking

plz help..

sum body must of heard of this b4

im thinking dodgy wire or plug mayb lol

The Dan Grand Master

The Dan

Posted
Posted
dam that was fast.. you musta been waiting haha

thanks..

peak torque at 3grand?? is you for real mate??

i'd say its got nothen under 4500rpm an doesnt start pulling to 5500rpm an at 7500rpm its nice he he :D

it seems to be electrical, well i thought any way..

its only wen you start to accelerator from backing off or braking

plz help..

sum body must of heard of this b4

im thinking dodgy wire or plug mayb lol

Hey I always check my emails in the morning and at lunch

You need to test the different systems. You can't just expect that someone will have your answer. There is about 10 different things that will cause that issue. Do a search on checking fuel flow and try that first. If it's not something basic like that, then start checking the other electrical things. Don't over complicate the problem. Keep it simple

turbots Rookie

turbots

Posted
  • Author
Posted
Hey I always check my emails in the morning and at lunch

You need to test the different systems. You can't just expect that someone will have your answer. There is about 10 different things that will cause that issue. Do a search on checking fuel flow and try that first. If it's not something basic like that, then start checking the other electrical things. Don't over complicate the problem. Keep it simple

yer thanks mate.. very true.. i allways over complicate things in steed of keeping it simple..

im starting to think its got sumthing to do with wireing to maybe fuel pump

did it bad last night going over heaps of bumps round a bend an i was kinda rolling... hmmm

an i gave it a fair hard time other wise an it loved it!!

but still going to stall at idol

would a after market blow off valve maybe do that??

umm how can ya turn the boost up with a stock ecu??

ive got a remaped ecu with no boost cut

but i dont like useing it coz i think its not a auto ecu and doesnt change gears very good

wouldnt mind winding up the boost with stock ecu

do you need a fuel defender or sumthen ????

cheers

turbots Rookie

turbots

Posted
  • Author
Posted
Split Vacuum lines somewhere, Blown head gasket, rag stuck in pipework somewhere-start where Elite said to start checking-he knows his RB's better than just about all everywhere

thanks man.. its got new vac hoses.. and it hasnt got a blown head gasket!! engine is mint!! only put it in there couple months ago.. lol no rags stuck any where.. i dont think it would go/run very well with a rag stuck sum where!!

it only does it when goin round a bend thats bumpy !!

  • 1 month later...
dannk Enthusiast

dannk

Posted
Posted

i would start with the spark plugs and coil packs, (1) look for water / moisture in the coil packs (2) check coil pack condition and the connectors too.

if thats clear would go ahead put the stock bov back on and check all vaccum hoses by fidling and tightening

if problem persists would start checking the fuel pump,filter,and idle control valve, and also throttle postion sensor.

hopefully helps

  • 1 year later...
turbots Rookie

turbots

Posted
  • Author
Posted

i would start with the spark plugs and coil packs, (1) look for water / moisture in the coil packs (2) check coil pack condition and the connectors too.

if thats clear would go ahead put the stock bov back on and check all vaccum hoses by fidling and tightening

if problem persists would start checking the fuel pump,filter,and idle control valve, and also throttle postion sensor.

hopefully helps

HI, all of the above is good, like i have said..

checkd the fuel pump an thats fine as well..

I think all it is an has been this hole time, the wires going to the afm

it sumtimes stalls wen you move them..

does any body have i wire diagram so i can see where in the ecu the afm wires go ??

any help would be gr8

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