overboost

[hachis15]

guys i had the s15 out for a spin a while ago and i noticed when i was passing out a car id felt like the car overboosted it just died for a sec and came back then i tried it again and the boost gauge went right up to 1bar which i have never seen it do before im not running any boost mods or anything like that its standard except a fmic any ideas,thanks

 

[Nicely]

The FMIC will make the car boost slightly higher than standard. Fuel cut is usually encountered if its particularly cold. I would expect people to hit it around 1 bar without supporting mods. However, your car shouldn't boost beyond 0.7/0.8 bar without having the boost tampered with... Sure it hasn't had the free boost upgrade?

 

[ichi-go]

Did u hook up your fmic correctly?

FMIC

 

[Auss15]

Could be a lazy, faulty wastegate actuator

 

[hachis15]

@ nicley,sorry but what is the the free boost upgrade,and it was cold last nite but not any colder then i have drove it in before,i doubt its the fmic cause i have the car six months and it never done it before,i tried it again today it went up to one bar but didnt die this time so any ideas,thanks

 

[Dazz0i]

sounds like fuel cut.... i've had it before a couple times.... only when first starting the car and pulling off though.

feels like one big jerk then back on again....

 

[Matt_S]

sounds like fuel cut.... i've had it before a couple times.... only when first starting the car and pulling off though.

feels like one big jerk then back on again....

Way to go. Cane the car from cold :wack:

 

[Pazz]

Reminds me of a Rover 620ti I use to have. Use to fuel cut it's arse off sometimes. Dump valve was hella loud when cold tho

 

[Dazz0i]

Way to go. Cane the car from cold :wack:

who ever said i was "caning the car from cold"????

it was at about 3000rpm! i didn't say i was bouncing it on the limiter, fool! i was turning down a road 40 meters from my house, so in no way was i "caning" it.

 

[hachis15]

thanks for the help guys, @Dazz0i ya it just sort of jerks for a second and comes back again,so ye reckon its the fuel cut is that a big job to fix ?

 

[Dazz0i]

i've done nothing to sort it.... litterally had it like.... twice. Can't remember last time i had it. Certainly not enough to worry about it. Only ever when the car was cold, and it was cold out.

(Just for future reference if i come to sell my car and someone reads this I DO NOT THRASH MY CAR FROM COLD!!!!! )

 

[hachis15]

Ok thanks again dazz0i.