skunk2 IM/TB install problem

[czy_sol87]

hey guys
i've just installed a skunk2 IM and TB, it runs but the problem is its misfirering and i cant figure out why
its been tuned for the stock IM and TB, could that be the issue. the tune???
also its running heaps rich blowing black smoke on idol
im pretty sure all vac lines are on

any ideas ppl

[beeza]

You can reset your ECU and see if that helps.
Subscribed.

[fatboyz39]

hey guys
i've just installed a skunk2 IM and TB, it runs but the problem is its misfirering and i cant figure out why
its been tuned for the stock IM and TB, could that be the issue. the tune???
also its running heaps rich blowing black smoke on idol
im pretty sure all vac lines are on

any ideas ppl

If installed correctly it should idle like stock manifold. Check all sensors plugged in properly.

[929]

What is the size of the IM and TB?
If they are different, the air does not flow smoothly into the engine. That's why it might has problem with idling

[czy_sol87]

ok guys update
i've fixed the misfiring problem, now the only thing still wrong is that it wont idle below 2k rpm
just holds it at 2k and sometimes hunts
tried adjusting the screw, doesnt do much...
could a faulty IACV valve be the cause here??
any ideas?

[beeza]

Sounds like the Map sensor but I'll wait to see what the pro's say
What was the cause of the misfiring?

[czy_sol87]

it was partly the map sensor not having a vac line anywhere and the EVAP vac line not having a big enough vac hose, so i've used some T peices and taped into other sources for vac

can anyone tell me what these three holes at the top of this skunk2 TB does??

[[ricer]]

sounds like an air leak

the top hole where the map sensor plugs into?

[fatboyz39]

vaccum leak. PLace your hand over the throttle body and if it idles, start searching for the air leak.

[[ricer]]

or throttle body cleaner all over it and if the motor sounds like its gonna die then leak leak leak leak

[94vtirozguy]

well first of all when you installed your TPS on your new TB did you check to make sure the voltage is what it should be at idle ? WHat is your voltage at idle should be about 0.5V at idle and about 4.5 at WOT.

Once you have the right, adjust your idle screw, and or check for leaks

[todaek9]

from what size to what size?
oversize too much may have idle problem..
i previously have the same issue, but got it tune and now it's all good..
u may need to adj your idle valve ctrl and tb position...