2000-WS6-Formula

Hi Guys! on thursday i had a shop that specializes in just LS1s install a Hotcam kit,30lb svo injectors,hardened pushrods,ASP pulley. for 2 days he has been doing the ls1 edit to tune the car. everything is fine except the fuel trim on one side,way to lean. he has spent atleast 16 hours going over EVERYTHING and double checking again and again and cant find the problem. he already replaced both O2 sims. so far everything checks out. Any ideas on what could be wrong??? i REALLY want my car back.

HumpinSS

iTrader: (1)

Sounds like a leak in the intake some where. Maybe a vacuum hose came loose and is letting un=metered air into the engine

2000-WS6-Formula

i know from talking to him today that alot of time was spent looking for just that. but everything was checked i believe. he even checked the manifold bolts and they were a little loose.but he torqued to spec and still has the problem. he also installed a Greddy catch .

HumpinSS

iTrader: (1)

What about the catch can make sure that is tight. Is it poosible for it to let air into the TB sice that is behind the blade IIRC and is unmetered

ataylors

iTrader: (2)

swap the injectors

2000-WS6-Formula

i found out today that when the car is idling its very lean on 1 side,when given the gas and reving the fuel trim is fine??? why do u say switch injectors?

HumpinSS

iTrader: (1)

My brother had the same symptoms at idle on his LT1 and it turned out to be a vacuum leak.

ataylors

iTrader: (2)

well you have to look at things you did and what would cause your issues. It could be a vaccum leak which you said you had completely checked out. the only other thing that would be isolated is the injectors. I always try to rember the saying "Just because its new, doesnt mean its good." If nothing else it will rule out one more thing

2000-WS6-Formula

thanks very much for the info,will pursue all leads tomorrow.

Deeavi

iTrader: (16)

Everything I read says the stock injectors are good to 450 hp or so