coughing and spluttering

[pete.w]

hi pips, ive got a strange one for you all lol, when i start driving me car farts and cougths until she gets realy warm ,its frustrating as i cant open her up for about ten minutes or so ,ive also noticed that i get a certain sound comming out the exhaust while im waiting for it warm up like a mild poping when slowing down through the gears ,i know it makes this sound but while cold its ten times louder. as i say its not undriveable but when i pull away even after a couple of miles she coughs and farts and i have to change gear to get it to smooth out . its fully bpu ,and when warm its fine im thinking over chokeing .is that possible and is there an ajustment on the choke .

Basic Performance Upgrade
The BPU upgrades allow the engine to produce more power by raising the boost pressure the turbos produce.

 

[Bigzavs]

have you changed your plugs any time recently?

also try changing your fuel filter out

 

[10secdream]

Why not give it some cold medicine....

On a more serious note my car does not drive too well until it is warmed up as well. I would check the plugs first and replace them with brand new NGK 6097 coppers gapped to 0.028

 

[pete.w]

i will change the plugs and filter but there iridium and only been fitted within the last year ,thaught they were good for thousands of miles thou ?

 

[10secdream]

i will change the plugs and filter but there iridium and only been fitted within the last year ,thaught they were good for thousands of miles thou ?

I have tried iridium's and have found that coppers perform much better on a turbo charged engine. You will have to replace them often but they are much cheaper and superior.

 

[pete.w]

what plugs do you recomend ? im running around 450 bhp with the uk 2jz tt and 100bhp nos when im on the tracks

 

[Bigzavs]

He posted it already

NGK 6097 copper plugs gapped at .028"

we put iridiums in a friends JZ, ran 10x worse than with regular coppers