T88Rx7

on the commander, is the trailing and leading timing on the monitor screen suppose to be the same number at all times? or just at idle and or constant idle speed whether its 900 rpm or 1200 rpm?

asking because i KEEP fouling plugs and everything seems to be in specs....TPS coils, wires. thats about all i checked. I went thru 3 sets of plugs already in 25 miles on a new motor ported with stock injectors (550x850) they are NOT leaking.Im holding pressure pump off for more then 15 minutes. Car on pressure is at 34psi. Im running base PFC map. . i pulled the trailing pugs (comes out wet and black) ,(leading comes out dry and black too). Any Ideas

cewrx7r1

iTrader: (2)

IGL and IGT should never be the same(no split).
Too much carbon means you are running too rich.

T88Rx7

this i know, but what other things can cause it to run that rich, on stock injectors and base map on a ported motor other then what i listed above that i checked out already

T88Rx7

bump

SPICcnmGT

You really need to find a WB O2 and hook it up.

Is it fouling all the plugs or just the trailing plugs??

T88Rx7

the wide band aint going to really help me much, because i know the car is running rich. but why sooooo rich on a stock PFC map. the plugs are fouling because the car doesnt want to start, then i do the flood process and a **** load of fuel comes out when i crank the car with the plugs in.

SPICcnmGT

Well honestly it sounds like you have to have either leaky injectors or leaky o-rings. Why don't you try removing some fuel at 1000rpm on the PIM voltage, it won't hurt anything, I had to do that to mine and mine when I had stock injectors. If it is that rich throught the whole rpm band then you will need a WB to tune it, unless something is leaking.

T88Rx7

it cant absolutely be leaking, my pressure guage shows 34 psi for more then fifteen minutes after turning off the pump. if the injectors were leaking it should drop faster then that right...

cewrx7r1

iTrader: (2)

Have you verified that all the PFC/DL parameters that affect injectors and fuel are correct?

If the map setup is wrong or the map sensor hose is off, similar things can happen.

T88Rx7

dont have a DL, just using stock maps that the PFC came with, didnt mess with anything... map sensor hose is fine