hey guys been having an intermiting prob with the car since the headers have gone on in 5th gear at around 4000rpm it feels like the boost cuts completely, this only seems to happen on cold wet eves like tonight as earlier before it got dark it was fine infact suprised me how much it boosted when gave it some, any ideas? all ive realy done to it is 3inch turbo back exhaust no cats and stainless headers and panel filter, although do understand that when you change exhaust and de cat these you do raise the boost level.

 

[QUOTE=johnny2007;8087283]hey guys been having an intermiting prob with the car since the headers have gone on in 5th gear at around 4000rpm it feels like the boost cuts completely, this only seems to happen on cold wet eves like tonight as earlier before it got dark it was fine infact suprised me how much it boosted when gave it some, any ideas? all ive realy done to it is 3inch turbo back exhaust no cats and stainless headers and panel filter, although do understand that when you change exhaust and de cat these you do raise the boost level. [/QUOTE

changing the exhaust and fillter ect...can raise the boost level and on cold days it will boost more than when it's a warm day ,or even rainy days can give you a little more boost as the air is denser, so your car may be hitting the boost cut now and the best way to sort it out is to have it re-maped and the mapper will raise the fuel cut plus you would also get the best out of the new modz hope this has helped

 

As I understand it, with mods you have made you need a remap asap. Most of my knowledge relates to the newer engines but put it this way, I was told to stay off boost inbetween fitting my 3" decatted system and getting my remap or risk serious damage due to overboosting.


I know the older cars are less sensitive but personally i wouldn't take the risk, bsesides, you won't be getting the best out of the mods until you do.

 

cheers guys thats great help, my scooby is a 1998 and some people have said before that this ecu cant be mapped is that true?

 

mine is a my 97 and think they would be the same, if so you can't remap it and would have to buy something like a apexi power fc, but dont hold me to it and mabye post on general technical section and should get some more answers you looking for

 

have we got the 4 plug ecu because think ive found 1 for sale cheap

 

its been a long time since i have seen mine just pull your passenger carpet back and remove the plate and you will see it not sure if its a 3 plug but it is always best to check your car as there are so many different models ect.. it could be either one

 

tell me bout it we have the awkward age scoob, why did they stop mapping on ours then change it back on newer models mmmmm

 

not sure but it is abit of a pain when out of all the scoobs we have to buy new ecu
if you are going to get an apexi power fc they are very good plus if you get the fc commander to go with it you can mount it on the dash to show you lots of data on whats going on with the engine think it can moniter 8 things at once

 

i am thinking bout it, seen andy forest does a simtek with anti lag and launch control cheap aswell, it aint fair that we got to shed oout big bucks to modify

 

only thing with anti lag and launch control is that if you havent got a ball bearing turbo it will not last long

 

the misses has got me an 18g turbo as a pressie will have to check to see if it is, have a front mount sat waiting to go on aswell so was going to change ecu just wanted to wait and get it done together, oh ye we have a 3 plug ecu buddy i checked mine earlier

 

if its a 18 g tdo5 its not a ballbearing turbo nor is a 20 g which i have but if you go for anti lag ect.. it might be ok you never know

 

im going to have it on a switch anyway so i will just be carefull how much i use it hehe

 

good thinking and go for it fella