VJ RC51

ok so my 92 sc300 is running insainely rich, so bad it misfires and puts fuel smoke out the tail pipes. Took out the plugs #6 looked BLACK and #4 and #5 were kinda black but not too bad, the rest were ok, so i replaced #6 injector cause i only got 2 out of the 6 i was supposed to get. So i put the car back together, same problem. When you start it, it runs fine, but kinda rich, then bout 30 seconds after running it runs super rich and misfires. Im lost on ideas.... anyone have experence with this?

2jznat

i think detuned had that same problem. hit him up

SUPRMSC

iTrader: (7)

Bad O2 sensor?

soarer479

iTrader: (2)

where in fl are you?

VJ RC51

deltona area

DETUNED

yeah I did.....hahahahaha.

Project300

I had a similar problem right after I put my throttle body back on and it was because I forgot to connect the wire harness that controls the electric choke. It started and reved pretty high then just sputtered and died because the mix was too rich with that choke closed. Once I plugged it back in, it was fine.

You could try cleaning out the throttle body and making sure the butterfly valves are clean and functioning. And make sure all the electrical connections to the throttle body are solid. Check the mass air sensor?

Good luck.

VJ RC51

well the car runs, and at times it clears right up. IF it sits for more then 6hrs it would run really rich and then clear up after a few mins, but recently it did it all the time. Its running alot richer then a choke, its so much fuel it spits it out the tail pipes, and u can ligtht the smoke on fire lol... Mass air looks fine, everything looks connected ok.. Its the rear 3 pistons that look rich, and #6 was super black, and i replaced that injector and has same problem. When its cold outside, the car actually runs good, and when it sits in the sun all day, it runs bad. I can only think its the ecu?

2jznat

............NOT.................

VJ RC51

please no thread highjacking, keep to the current topic

2jznat

you getting banned from orlando forums was not enough for you , you trying to ruin another forum page. MODS please keep a watch this thread, don't want him to turn CLUBLEXUS INTO THE MESS HE MADE ON ORLANDO FORUMS. THANKS

vududoc

MAF or bad injector. check continuity on injector.

DaveGS4

iTrader: (2)

That may be the case, but you are the one causing the problem in this thread. Let the moderators on CL do the moderating here, please. Do not continue to carry the strife from other forums here or all involved will be banned.