I will try to be quick but I want you to have all the symptoms. My son drives a 91 crx dx with 1.5l with tbi injected. Car runs excellent, no misfires, no eratic idleing.When this car has a full tank of fuel everything is perfect. After driving around 140-150 miles on it( about 6 gallons) the car will stumble heavily in an accelerated(drifting like) turn as well as when you come to a fast stop or going down a steep hill. Now when I mean stummble I mean that your foot is on the gas and the car acts like it is not running and wont accelerate. now with that in mind after you get around the corner 1 of 2 things will happen, either the car will stumble then die or everything will be okay as if nothing has happened and down the road you go. Last night my son said he was coming down a hill at a offramp and it did the same senerio listed above. sometimes when you come to a fast stop at a red light the car idle will drop significantky then possiblly die. last week it dies at a stop light for no reason after a quick stop, car would not fire right back up, let sit for about 2 minutes then it fired up and ran perfect. Now that I got that out this is what I have done. I dropped the fuel tank and cleaned out the tank, replaced fuel pump and strainer and replaced a few fuel lines as well. I also replaced fuel filter. Filled the car up with gas fired right up with excellent fuel pressure. Last night about 150 miles in car did same thing coming down a hill, so problem not solved. Car is not throwing any codes.
OKAY does a 91 crx dx have an inertia swith somewwhere in the car?? What does the 2 way valve on the tank control on this car ??? And is the fuel regulator located in the tb on the intake. Im stumped this problem only occurs after you have used about 5-6 gallons in the tank. Ive checked sensors, dist., and a few other items..Hopefully someone has experienced these problems and has found the fix
PLEASE SOMEONE HELP...I have not replaced the main fuel relay but that does not seem at this time to be the problem due to it would probaly I think happen all the time...