A few things it could be, Dirt in the fuel line, or tank strainer is mostly clogged. Pinched fuel line. Plugged tank vent. Spark plug not gapped correctly, poor quality fuel, old fuel, 87 octane fuel that is more than a few weeks old.
It can also be a faulty magneto.
SOURCE: 1992 buick lesabre starts fine.
You check the coils with a ohm meter. They should 6-8 thousand ohms at the spark plug connections. One lead to one spark plug connection and the other lead to the other . It's not likely a coil for stalling. If coil , Your car can still run on four cylinders. It can be a ignition module. It fails when it gets extremely hot. The module is located under the coils.
SOURCE: starts fine runs for about 2 miles then dies but starts up
you need to change module inside your distributor. When they get hot they quit.
SOURCE: 88 Toyota Corolla backfires through carburetor.
If that is carbureted, and has a mechanical fuel pump, try running a length of fuel line from inlet side of pump to a gas can that has fresh, clean fuel, and if it runs good that way, you know problem is most likely in the tank. Removing the tank & cleaning it out is best solution from there. I'd even be tempted to add a small bottle or 2 of Lucas Fuel Sytem Cleaner to first fill in clean tank, just to help clean lines as well as carb.
SOURCE: 1994 pontiac transport se sluggish running
Ck your exhaust pipe at rear of car noting any obnoxious smell like rottrn eggs. Hold a piece of paper, I use a dollar bill ,in in front of the exhaust. If it blows the paper gently, you have a catalyctic converter going or is bad. Will need replace if so.
SOURCE: starts runs realy rough then dies put new fuel
It sounds like you already solved your problem. Attach fuel gauge to fuel rail pressure line and monitor for fuel pressur (above 30 p.s.i. @ crank). If pressure low suspect pump. If pressure o.k. but dies out and pressure drops but restarts, check oil sending switch as this controls fuel pump. Computer primes pump for start, then oil sender powers up pump for normal operation. Check for oil leaking at terminals on sender. Also check plug connector at fuel sender on tank as they are known to melt and fail. If fuel not problem, check for spark as ignition module failure is common. Have obd2 diagnostic run to check for codes as this may help with diagnosis.
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