LS1SS4ever

I went to the dyno today, my first test didn't run good. A lot of carbon comes out of exhaust.
I got 178hp after that he told me go and check my fuel pressure or something else he actually didn't try to modify it. I checked the fuel presser it was 51psi. I don’t know how I can solve this problem!!! What do u think is the problem? The car is stock only headers, borted TB, Trans 700r4 that’s all

rjt2291

iTrader: (4)

Dude, thats like Mustang bad!!

Heater

_JB_

iTrader: (33)

I believe stock fuel pressure is 58psi. Plus you are making almost 1/2 power, did you forget to reattach 3 plug wires? Have you tried to pull any engine codes?

the_merv

iTrader: (88)

Yea waaay rich.. I'd check some Plugs like mentioned above.. maybe half of the Ignition isn't working.

SOMbitch

iTrader: (8)

Tell us more about your setup.

If you are runnig all the GM sensors, maf, etc.... you should be going lean at 51psi not rich.....

sway99bird

iTrader: (22)

Pinched fuel line? and check your plugs and wires

LS1SS4ever

I use 6.0L vortec fuel line, BBK 155lb fuel pump, stock plugs and wires.

SOMbitch

iTrader: (8)

Is MAF good? O2's working? Grounds tight? And FP should be 58psi BTW. Is the tune even close???

LS1SS4ever

There is MAF, no O2's, I checked again for FP also is 51psi

TheInferno

I do believe you have to have the O2's that what lets the car know how much to fuel..if you dont have any it will DUMP fuel which is your problem. install the front O2's before you wash the cylinders. That's probably why your fuel pressure is low too because you maxing out the injectors.

SOMbitch

iTrader: (8)

^^^^^Unless you are runnig a carb setup you need the o2's.

LS1SS4ever

I found one plug doesn't work no spark allot of carbons. I put used one for test, I feel better tomorrow I will change the spark and wires and will clean the injectors. That why the fuel doesn't burned.

rio95cobra

iTrader: (3)

you talk really weird

SOMbitch

iTrader: (8)

If you are running a pcm you HAVE TO RUN o2's OR YOUR PCM HAS NO IDEA HOW MUCH FUEL TO COMMAND. Surely you know this cause you wouldn't have gotten this far being a dumbass.........

+ 1 cylinder not firing won't cause you to lose almost half your horsepower.....

Sorry in advance.......

BSmiff

Wtf dude. How did you make it to the dyno with no o2s? You mustve surely known something was wrong when you were sputtering down the road and your car surging like a mf. I had just 1 o2 go out and I instantly knew I was down on power.

davidadavila

i think its the motor having a nervous breakdown after it woke up and found itself in a mustang......

SOMbitch

iTrader: (8)

^^^^^Funny ****. I get some weird kinda satisfaction seeing a LSx in a Mustang though......

Gaunt

iTrader: (11)

Oh, good morning, time to get up and get, let's get this WHAT THE **** WHERE AM I HOLY ****.

SELF-DESTRUCT INITIATED.

Out Of Focus

iTrader: (7)

lmao!