For some reason Im running rich and dont know why. I recently replaced the 02 sensors and Im still blowing black smoke out the tail pipes. I have a pcmforless tune for my cam and I know they are notorious for being lean but I wonder if I having my car dyno tuned could fix my problem. I just hate getting out of my car and smelling like 93 octane. I had someone ask me if I was running racing fuel in my car and I was like no, its just running rich.

 

anyone?

 

I had an exhaust leak and that was making me run rich.

 

I had one to but I fixed it and its still rich as hell.

 

dude...if you ever figure this out I will thank you sooooo much man!. Im having the same frigging problem.......and it runs like crap once its warmed up, and starts throwing black smoke etc.......... and let me tell you man, this one guy at work told me that his eyes were watering from the smoke that came out my cars pipes..hahahahhaha. ;( dude this sucks.


aANYONE...!!!!! ANYONE OUT THERE FIGURED THIS OUT YET???????

pLEASE FOR THE LOVE OF HUMANITY...HELP US.!!

HAHA

 

Im gonna get my car dyno tuned and if that doesnt help then I dont know what it could be.

 

Did u get heated o2 sensors, and are they heating up? There are issues with o2 sensors and longtubes, a dealer ora nybody with a scanning tool should be able to read or 02 sensor output. If they do not show rich, then it means they are not detecting the richness.

 

Without a datalog it's impossible to say what's going on.
You need Datamaster, freescan, EFI live, or some sort of scanning software before we start throwing rocks at the problem.

 

try cleaning your MAF wires with a q tip and alcohol, do it VERY carfully though, dont put any pressure on the tiny cross wires, just gently wipe along them with the q tip doused in alcohol, basically get all the black grime off of them

 

DID THAT in april.......... Anyone ...any other suggestions?

 

same thing with me...did the cam install, bigger injectors and beginning to fowl plugs because too much fuel is being injected...had my pcm tuned twice and same issue....will dyno tune help?

 

I am also having the same problem, once it heats up, it runs aweful.... I too just did a new cam, longtubes, and PCM forless

 

Still the same thing. Im having my car dyno tuned this week as long as the guy has the software ready.

 

Is dyno tuning the only way to go or can it be dome via laptop and software?

 

Mine is doing the same thing and I have FINALLY thew a code for the EGR. When I put the supercharger on, I'm totally eliminating the Air Pump and EGR. I can almost guarantee that you're having the same problem.