My unit is mazda titan with TF88 engine. Problem is: i have replaced new fuel filter and fuel pump but still the engine start for a while then, shutdown again in a minute or two

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: Vehicle dies while driving down the road.

could it be the A/C pump kicking in. might be boging down the motor or electrical circuit, not letting the injectors get enough power. This could happen if the bearings are going bad in th A/C pump or there is a short in it. Just an idea. sounds like you have done the main components.

SOURCE: 1995 GMC Sierra 5.7 liter stalls and is hard

even though parts are new they also come with defects so it sounds as if when you turn the key you hear it working and other times not at all hmmm connections are tight ? could be faulty fuel pump or relay .

SOURCE: 1991 Jeep Fuel Control Issue

Hey Mudkicker,

Who ever thought of putting an electric fuel pump inside a tank of gas........

Check your other gauges for accuracy. They do that when a ground is loose.

Check the wiring from the fuel tank along the longitudinal frame for frays and shorts. Plugs are secured.

Under the hood, passenger side, check the fuel pump relay. Switch it with one of the others to test it.

Bring the vehicle to an auto parts store. Ask them to break out he code reader. Check for diag codes

Comment me back
Mike.

SOURCE: my Nissan terrano 1996 2.7

I just had the computer on my Terrano rebooted, which seems to have solved the problem with it 'die'-ing and surging. One of the local Auto Electrical places sorted it.