Crazy RICH

[wickedz]

So ready to be done with this dsm. One thing after another and its killing my wallet.

Removed AC, PS, Cruise, EGR, ect

Now Im running MAFT and GM on my setup with all hard pipes, ect. Car seems to run just fine, but my problem is BAD GAS MILEAGE, and really rich exhaust. You can See the black smoke shoot out when I punch the gas, and alsomy wideband shows 10.2 at idle and stays in the 10's while driving, when they should be in the 14.5-15.5

NO Im not tuning with anything for my maft which I know I should be. I was runing my wideband on my 2nd bank which is the OEM rear o2 bank, leaving the oem o2 rear unplugged obviously. Now I thought replacing the o2 with a new oem one, I could get the ECU to get its correct o2 readings, but the car is still running rich, and backfiring on shifts if I get into the trottle. Sometimes the backfire would be so great, that it sounds like I popped a tire, and you can feel the backfire like you dropped a tire on the car .

Im on new plugs and wires, ect. The plugs are really Rich, and when I pulled my o2 sensors, they were CAKED in carbon build up

HELP with solutions please

 

[romeen]

Well, you already brought up the possibility of a tuning issue.

Do you have an upgraded fuel pump, injectors or any other fuel mods? Fuel pressure gauge?

I'm assuming the O2 sensor that you replaced with a new one is the front sensor in the stock location?

 

[snowborder714]

Did you buy the MAFT used? If so, did you make sure the knobs and switches are properly set for your setup?

 

[banishedmunk]

You can use these pdf's depemding on which version you have to verify if it is initially setup properly
1g/2g maf-t version 2.xx
1g/2g maf-t version 1.3

 

[Sphinx]

*note* not trying to give bad advise,

but is the turbo pushing enough air to lean out your fuel?

 

[wickedz]

Thanks guys for the fst responses and all good ones.

Ok I got the car with a ebay 16g turbo on it, and I switched it out to a 14b and im on stock injectors and oem fuel pump (as fr as I know). I know im using 1g rail and fpr becuse the car came with some getto aftermrket FPR nd I wanted to go oem. I do now have 2g rail and fpr, just havnt installed yet. I think the oem numbers are 1g 38 psi and 2g 45psi fpr flow.

I have done several boost leak test and fixed all that were found. Yesterday went ahead and installed a dealership testing gauge on my intake. Im still showing about 15psi VAC at 1000 rpm. Now when I drive car it will get into boost 10psi, then slowly drop psi even though im still in trottle and speeding up. If your crusing 55 mph steady, my aftermarket gauge will 0 out boost and sometimes be in VAC. I took it out on the highway and even going 80 mph still in vac at steady speed? I checked for ALL vac leaks, and possible cracked intake manifold. I found nothing :-(.

Called my buddy up, and he said SMELL YOUR OIL, so I did and I can smell some gas in my oil. I think my injector seals are ok, but I will check later on when I switch out my rail and fpr.

I changed out BOTH o2 sensors with NEW OEM front and rear and left my UEGO unplugged for time being until I find out my running issue.

The MAFT was used but NEW. Before I started my car, I logged onto tuners and got the readings for the dials for my setup. The car sounds like its getting WAYYYYYYY too much air. I know the 14b is a nasty little turbo but come on . Im all hard pipe and injen intke and filter. I checked my BOV (greddy s) for leaks ect.

Racking my brain , I dont want to run my motor like this for too long and burn up my rings or something. Sometimes you can hear the cylinders getting too much air and motor working harder, but RPMS not going up or speed

anyone?