Sputtering When Reving

[DAS KAMU]

So yeah driving home from surfers this morning and there was like a 2 second sputter when driving home on the hway

i didnt think much of it

I then dropped a mate off at central and while i was parked i gave it a little rev as it seemed off

and when the accel was pressed it wouldent rev? it would go up a tiny bit and then drop down below 1000 rpms and then come back up

i then gave it a little drive and it seemed fine for th 15 minute drive home

it sputterd once while doing 60 k's 10 mins in to the drive home

im guessing vac leak?

[DAS KAMU]

just happend again on the gateway around 9 times more

all power was lost and wont rev at all

pretty scary have to pull over stop turn off restart etc etc all the way home from the airport to carina

my mate says it is the fuel pump which may be worn out the car is a 1990 gtr which has done 100,009 klm's

we will check out the pump tommorow and see what we can find

any suggestions from you chaps?

[DAS KAMU]

no advice from anyone ?

it will be welcome

[White GTS-T]

Sounds like your on the right track with vacuum and fuel, but i would also check the TPS and the AFM's.

[R33GOD]

check my thread i had the same problem.

could be a number of things. afm's, fuel pump, vac leak, spark plugs

[OzCarImports]

check my thread i had the same problem.

could be a number of things. afm's, fuel pump, vac leak, spark plugs

Same as above and maybe O2 Sensor

[DAS KAMU]

I have no o2 sensors and havent had them in for over a month and the car has performed great with out them so im thinkiing its not them

can you see if the fuel pump is worn by looking at it?

or do you just replace it and see how you go?

[and3_3]

Could be ignition aswell, coilpack loom or coils or igniter.

But fuel pump does sound likely.

[BeEnAr]

my money is on the AFM's

[DAS KAMU]

so afms will do this while driving and also while sitting ideling?

hmmmmmmmm should take a looke at what voltage there meant to run

ive been advised of water in the tank by quite a few people but i thought the car would stop altogether if that was the case?

there was a bit of a flame / missfire noise today when it happend

i was wondering what the connection was?

could it be that a plug also may have come loose on on of the near new splitfire coils?

ill be checking all this out tommorow

[DAS KAMU]

Could be ignition aswell, coilpack loom or coils or igniter.

But fuel pump does sound likely.

can a pump fail on and off like this?

after reading more and more about afm solder issues it may be the case??????????

Edited March 15, 2009 by DAS KAMU

[DAS KAMU]

Ok here we go

i made a video last night of the issue

ive now been told it an afm issue - but please have a look its all learning

Skyline being gay

[DAS KAMU]

What i thought was a fuel pump

turned out to be an afm issue but oddly enough upon opening them and buying all the soldering gear the connectors had not come loose inside which seems to be the main problem with rb26 afm's

althogh there was a little surface rust around some of the solders on the board

an sau member had some for $150

i went to molindiner and got them

we plugged them in and car is well again

here are some pics of the internals of the old ones

And below are the new ones we picked up

All back in and running again

Edited March 17, 2009 by DAS KAMU