desmond

if i had a leaky injector would my injector duty cycle at idle be high? or is the only way to tell is if you smell gas. b/c i dont smell gas but ive read a leaky injector can cause idle surge. the car has 60K miles on it btw

dubulup

leaky = no electrical signal operation = no duty cycle change

duty cycle is calculated from electrical pulses


I can't think of a good solid way to test for a leaky injector with out pulling the rail.

PhatManBUD

do you have a powerFC?

my maps used to be too rich for idle so the duty would be at like 8-10% which caused the smell of gas to be really bad. I tuned it down to around 4-5% inj duty at idle and that cleared it up alot. The only real way to tell is get in there. It doesnt take long at all to take off the manifold...if u know what ur doin.

Cud just be a vacuum hose tho...

or where your throttle cable is at. For some reason my car would statically idle if i adjust the thorttle cable anywhere between 1,000-1,500. But it would idle above that. and below 1000 perfect. i never figured out why...it runs perfect now so who cares!

desmond

i do have an idle surge problem, but im attributing that is the tps, since its off and the need to adjust the air screws or even possibly a vac leak somewhere. my IDC is around 4.7 at idle.

PhatManBUD

i dont think its ur injectors

desmond

i hope not, but i will be buying new secondaries soon enough and boring them out to 1300 cc so ill know for sure. but thanks for the advice