UsmcMustang

allright , let me explain my problem

whenever i start my car the car turns on and then the rpms drop and it dies , in order that it doesnt die i have to press the gas and it shoots out a **** load of gas and blue smoke , then the rpms kinda go from low to high for a while and it has alot of hesitation when i drive

i think that my fuel pump is messed up , my car had been sitting for 8 monthes while i was in afghanistan so i think it migth have gone bad , its also telling me that my o2 sensors are going bad , but that could be because of the fuel being shot out of my exhaust ,

anybody got any suggestions ?

Nuke

Have you had a chance to run the tank down and refill with fresh fuel? I'd check that out first, then determine if it's a mechanical problem or something simple like a TB cleaning.

WHAT is telling you that your O2 sensors are going bad???

Menace

I don't know but seems to be a problem in the combustion process. Especially if fuel is coming out the exhaust pipes. Possibly not enough spark to ignite the combustion but just enough to stutter it along, and the remainder is being shot through the exhaust valves... but I don't even know if that's possible. Check your obvious indicators. Throttle body, intake, etc. (Airleak, however small or slim will give you hesitation/stalling)

Not sure any of this has anything to do with your 02 sensors though.

UsmcMustang

oh yeah i have gone through several tanks and it just keeps getting worst , my buddy had a hand held device that told me some of my o2 sensors are stuck on rich and some stuck on lean , i dont know if it is that or what

Menace

So his device is saying you are throwing codes based on your 02 sensors. Find out what those codes are, search for them to see what they really mean... and the causes.

UsmcMustang

well im gonna take it to one of the speed shops around here ( not jba ) , im 90 % sure its my fuel pump

SpartaPerformance

NUKE is right start with a fresh tank of gas, after 8 months it's probably down 20 octane points and is varnished. What about battery? Was it left to go dead? Also the excess gas isn't going to through codes for your O2 sensors, they're oxygen sensors not fuel sensors.