I have a 95 Cobra and for the past fue months i have had a ton of issues with it. first it was the driveshaft, then it would just die on me and now this! I am starting to run out of paicence with this car. Well now when i am driveing if i drive at a constant speed for longer then a fue seconds and then try to give it gas it boggs but if i let off the gas and then get back on it it is fine? I am clueless, it is like it isent getting enough fuel, it sounds like it is sucking air ok and there isent any holes in the air intake past the mass air flow sensor so i know it isent that, i just recently changed the ignition control modual, i got a MSD distributer and coil, all that fixed my dieing problem but didnt fix the bogging. Anyone got any ideas?
It is a manual transmission, i dumped a bottle of lucus fuel injector cleaner in it hopeing that would do the trick but it didnt. It may be the fuel filter the car sat for 15 months while i was in iraq with a half a tank in it.
I put the bottle of injector cleaner in it and it is still acting up. i am just not sure what it could be? Someone said it could be my mass air flow sensor but i am not sure how it could be, i was going to disconnect the MAFS and see if it would still do it but i have second thoughts on it because i know if i do that then it will act all wierd and wont have an idle and if i do that then it might not give me an accurite test. Is there anyway i can do a test on a mass air sensor? Or dose anyone think it may be the oxygen sensors? I am not going to lie i really dont know what they surve purpose for i have a basani X-pipe no cats, do you guys think it may be somewhere in that area? I have no smog equiptment hooked up on the car.
well i started noticeing this after i took it to the track one night, it ran in the 13's but the last run i pushed it past redline and i smoked the other guy! That was cool but the next day is when this issue began. is there anyway i could have burned an oxygen sensor out and make my car run wierd?
No i havent tried to clean my MAFS lately but i definitly will try that tomm, one thing about my car is i have a diablo preditor chip in it so it will stay running, so i dont get any check engine lights anymore. I wish i did so i could take this ***** to autozone and see what the deal is. i am just wondering if i am the only one out there with this issue, it is driveing me crAazy!!
Why don't you start with the basics which are fortunately usually some of the cheapest easiest things to replace like the fuel filter ($10) plugs (usually 4 a piece) MAF cleaner (like 3 a bottle you would be surprised how much a dirty MAF can effect a car) the prices shouldn't bother you to much cause these are all regular maintenance parts anyway
yes start with the basics. make sure your car is getting air,fuel and spark. clean the maf,replace the fuel filter(check your air filter too) and change plugs wires cap/rotor if you havent done that recently. might as well change the oil and filter too.
It is a manual transmission, i dumped a bottle of lucus fuel injector cleaner in it hopeing that would do the trick but it didnt. It may be the fuel filter the car sat for 15 months while i was in iraq with a half a tank in it.
Have you ever seen what gas will do if you just let it set for a few months?????
Right there is problem #1. I bet that fuel filter is clogged to the max. That would be the first thing I change.
Fuel injector cleaner isn't all it's cracked up to be, it will kinda clean your injectors but you can't just put that stuff in and hope it fixes your car.
I'm just guessing that during that 15 months it hasn't been given a tune up?
If not, then I would name that "problem #2".
Here's what I would do if I were in your shoes...
1- TUNE UP! give it a complete tune up: plugs, wires, cap & rotor, FUEL FILTER.
2- Mustang Basic Maintenance and Technical Articles: Do everything on the "solve idle problems". After letting old gas sit in your car for that long it's time to do these things.
The two main things I would do is clean your MAF and set your timing. 10* is stock timing, but I would set it at 12*.
3- SEAFOAM! After sitting for that long and then running that bad gas through your car, a can of Seafoam wouldn't be a bad idea...
The fuel filter and timing is what I am guessing is your main problems.
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Originally Posted by mustangx123
well i started noticeing this after i took it to the track one night, it ran in the 13's but the last run i pushed it past redline and i smoked the other guy! That was cool but the next day is when this issue began. is there anyway i could have burned an oxygen sensor out and make my car run wierd?
I'm really not trying to be a jerk here, but if you're having all these problems why would you go race? Let alone push it past the redline?
Our 302's don't perform all the way up to the redline anyways. If your Cobra is basically stock then you shouldn't even be going past 5K-5500 RPMs. Anything past that and you're just loosing valuable time.
Just trying to help you out bud.
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-1994 Mustang GT... K&N filter,GT40 tubular intake,BBK Full Length Headers,modified midpipe & Flowmaster muffs, timing at 12*. Best time- 14.74 @ 93.16 -Check profile for pics of our car collection! -Member of MBMCustoms Car Club - AmericanMuscle ROCKS!! - "Save a horse, drive a Mustang!"
BTW- I saw that you said you were in Iraq. So I'm guessing your in the military....
I just wanted to say thank you for your service. You're all doing a great job.
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-1994 Mustang GT... K&N filter,GT40 tubular intake,BBK Full Length Headers,modified midpipe & Flowmaster muffs, timing at 12*. Best time- 14.74 @ 93.16 -Check profile for pics of our car collection! -Member of MBMCustoms Car Club - AmericanMuscle ROCKS!! - "Save a horse, drive a Mustang!"
If the car sat for 15 months with a half tank of gas, that's part of the problem. Running a can of cleaner through the tank won't get things clean either, not after all that time. The gas needs to be removed, tank cleaned out, fuel filter replaced, and the injectors professionally cleaned. You might have varnish deposits in there because gas has a short shelf life. After 2 months, it starts breaking down into separate elements and sours.
I would do that and go from there.
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If the car sat for 15 months with a half tank of gas, that's part of the problem. Running a can of cleaner through the tank won't get things clean either, not after all that time. The gas needs to be removed, tank cleaned out, fuel filter replaced, and the injectors professionally cleaned. You might have varnish deposits in there because gas has a short shelf life. After 2 months, it starts breaking down into separate elements and sours.
I would do that and go from there.
Yep yep yep...
And for his sake let's hope it wasn't the 10% ethonal crap. Otherwise he might need new fuel lines too.
I was working on a mower last month. The customer left about half a tank of fuel in the mower for just the winter (or about 6 months). I didn't even bother TRYING to start the mower, the first thing I did was take the fuel tank off and hosed it down with carb cleaner. Then I took the bowl and float off the carburetor... Oh my God! That was SO nasty. I seriously looked like it had grown algea the inside of the float bowl was green, and the jets in the carb were completely plugged up and covered with some kind of black goo.
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-1994 Mustang GT... K&N filter,GT40 tubular intake,BBK Full Length Headers,modified midpipe & Flowmaster muffs, timing at 12*. Best time- 14.74 @ 93.16 -Check profile for pics of our car collection! -Member of MBMCustoms Car Club - AmericanMuscle ROCKS!! - "Save a horse, drive a Mustang!"
Ok well i will say this when i was in iraq i got a new engine put in it so i really didnt have to tune anything up. everything under the hood was new except for the injectors they were from the old engine. yesterday i was off work so i went to town on trying to find out what my issue was. well it really didnt seem to me that it was a fuel filter or fuel pump issue, it was acting like it was an electrical issue. so i got under it yesterday and saw my o2 sensor was damaged badly, my car is lowered so i am guessing i ran something over but to make the story short, i bought an o2 sensor put it on and test drove the car and it fixed it. so i am pretty happy that it wasent extremely exspensive to fix. i also had to order the fuel filter so when that gets there on monday i will be installing that. thank you everyone for your help and ideas!!!!!
Engine Bogging Issue 
