Problem On Boost

[rhys5169]

http://www.skylinesaustralia.com/forums/Mi...500-t32356.html

this sounds very simmilar to my problem???

[rhys5169]

ok so after reading through that whole thread im 99% sure thats my problem, just sounds so similar! so if anyone has any ifea of exactly where im ment to tape a picture would be great i'll head out asap and do it

[Oosh]

Have you checked the ECU error codes (search for how to do it if you haven't)?

[rhys5169]

the error stuff may aswell be in chinese cause it isnt making any sense to me haha

[shy_s6]

try disconnecting your battery and pumping the brakes for around 30seconds

[rhys5169]

so with the brake disconeccted, pump the brakes for 30 seconds then what??? what does this do?

[shy_s6]

so with the brake disconeccted, pump the brakes for 30 seconds then what??? what does this do?

no just disconnect the battery, then pump the brakes dont ask me how but supposidly it drains all the circuits and resets the ecu, i actually tried it once with a prob and cleared it for a few montsh till i went power fc

[rhys5169]

so disconect the battery, then re-connect, then do i have the keys in the car? car on etc?? then pump the brakes....

sorry, just tryna make sure i get it right

[Damo_R34]

Lol, no, diconnect, pump, re-connect. forget the keys, the battery is disconnected.

[Oosh]

And that'll clear the error codes take reading of them first. It's not hard.

[rhys5169]

ok so im just in from the shed and i have done the following:

1) took out and taped up every coil to cover any possible "cracks"

2) undid battery, let it sit for a bit while hitting the brake pedal and playing with the light switches (whats that ment to do if there is no power?) then reconected it all up again

now for the test run, i did about 20 standing starts, pushing hard through first gear all the way up untill hard in 4th.....and it was perfect, not one backfire, there was a small hessitant bit in one of the launches though....

but then as i went to take a corner hard in first gear over 4000rpm is backfired and coughed like crazy, this would suggest a problem either in the fuel tank pump or with the new fuel pump the previous owner put in????? only did it in corners under hard excelaration, like as if the force of the car was moving a pump and not picking up correctly???

cheers

rhys

[Oosh]

Checked the error codes yet?

[rhys5169]

no idea how or what i would be looking at? i did a search but couldnt make sense of it?? i know its probly simple once you understand it, i just need to get to that point :s

[SLED]

now for the test run, i did about 20 standing starts, pushing hard through first gear all the way up untill hard in 4th.....and it was perfect, not one backfire, there was a small hessitant bit in one of the launches though....

but then as i went to take a corner hard in first gear over 4000rpm is backfired and coughed like crazy, this would suggest a problem either in the fuel tank pump or with the new fuel pump the previous owner put in????? only did it in corners under hard excelaration, like as if the force of the car was moving a pump and not picking up correctly???

how much fuel you got in that tank?........if its only doing it around corners now, you might want to consider fuel surge

[shy_s6]

ok sounjds like surge, i recommend taking out the pump and make sure it was put in properly possibly not set up correctly and the pick up is too high, if its like a walbro the pump will be small and maybe set up in the cradle to high, if she low on fuel take out the pump now!

Edited July 16, 2008 by shy_s6

[rhys5169]

well i just slapped a full tank in to test this theory and its gotta be the pump pick up, dosent do it at all now, so i'll run this fuel down then crawl under the car

see how we go

thanks for all the advice

[Oosh]

If this doesn't cover the task sufficiently I give-up

http://www.skylinesaustralia.com/forums/EC...198-t35733.html

[rhys5169]

lol im gonna print all that off and have myself some reading to do. cheers