greenmax95se

iTrader: (4)

I got gas literally dripping out the exhuast leak between cat/b-pipe. and smoking. its not motor, cause i jsut changed with a 16k motor. its got to do with fuel system. not the MAF cause i checked. and also my battery discharges when i turn off the car. its something thats electrical that also has to dow ith fuel system. i post once, and still got replies but nothing that helped.

spark plugs changed aswell. coils and injectors chanegd too. can it be my ECU? if i had a check engine light on for o2 sensor in cat for very long and car ran a bit lean before, would that somehow mess up the ecu? i dont really think so but maybe someone expierenced something liek this. would help alot!! any ideas please post., thanks

-rafal

96maxdaddy

First off you have it wrong. If your car is leaking gas out of the exhaust its probably runing real rich. Since you change the injectors, and checked some other stuff out, my guess would be to pull the vaccume hose off the fuel pressure regulator. See any gas at the line?

happyricefob

iTrader: (7)

it u are getting a CEL with malfunctional O2 sensor, change that.

and then reset ur ECU.

greenmax95se

iTrader: (4)

woah. my mistake, was very tired when posting. i'll check that hose tommorrow. and i did change both o2 sensors in the y-pipe. and i reset ecu. same thing. i have no errors now. what else could it be with the fuel system? thanks for input. anymore?

fsr20det

i don't want to sound stupid but did u ever try and check if you have a gas leak anywhere by, or above where you think its leaking? just a thought....

Jeff92se

iTrader: (82)

Hmmmm. First fix the exhaust leak. If it's still very rich (and it sounds like it's VERY rich if gas can drip), I would suspect that an injector o-ring is leaking and gas is just flow from the fuel rail (constant pressure) and AROUND the injector and into the combustion chamber. Take off each spark plug and see if one is swimming in gas. I'll bet 1 or 2 are.

GodFather

iTrader: (10)

sounds to me like you have a problem somewhere in the electronic management system. you really need to make sure your ecu is oem for that engine you've just put on. other than that, it's prolly coming from the section between the intake setup and the engine. if your maf sensors aren't working, then the ecu will generate slightly different operating curves. for the malfunctioning maf sensor case, it'll pump more fuel than needed. i used to have a malfunctioning maf sensor because i once cleaned the throttle body with some shiity chemicals. after that, my maf sensor was just wild. the CEL didnt' come on, but it just spits gas in the muffler. after i replaced the maf sensors, everything went fine for me. so check all the sensors in the intake section, too.

greenmax95se

iTrader: (4)

the injector o-rings might be the case. i'll have to check that. and the ecu is the same one that came with the car. i have a spare i used to check if it was the ecu and it wasn't. and we checked the MAf sensor and its fine. as for the exhuast leak, i've kept getting one always at same spot cause i need anotehr hanger put up cause the b-pipe w/ resonator is heavy, and causes a leak between the b-pipe/cat falange.


the injectors are from the 16k motor i put in recently. i had the same problem from the old engine to the new one. the engine sakes alittle cause it soudns like the problem is flooding the engine. but would that cause my electrical system to sort? to discharge the battery? thast what gets me. anyone else?

-rafal

greenmax95se

iTrader: (4)

bump, need some more replies.

GodFather

iTrader: (10)

if the engine had went thru some flooding, it definitely will have something to do with discharging the battery. one day, me and my bro were just working on spraying some wd40 to loosen a screw, but some got into the alternator. the car discharges everytime we turn it off. after about two weeks, it works just fine again. for your exhaust fuel presence, you can also check your throttle body sensor. faulty throttle body sensor can affect computer interpretation of the input and give wrong outputs. i keep thinking this excess gas comes from the computing electronics since you said your battery discharges. the computer has to decide precisely determine the inputs from fuel and air flow readings and select the right output condition. if any of the factors are altered, the computer will compensate to changes so the car will run slightly different. remember, the computer is only programmed to optimize the run, not fixing problems to run normal. that's all i can tell you.

greenmax95se

iTrader: (4)

is there a way to chexck the TB sensor? and i dont think i have any probs with alternator. wasn't sparying anything etc when the problem accured.

-rafal