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The fuel pump is located inside of the gas tank. In order to change it, you must remove the gas tank and it pulls out through the top, a new fuel pump assembly slides in easily.
Dont forget to drain the gas before removing the tank, gas is heavy!
You look it up in factory service info , look at a wiring diagram , fuse box diagram etc.... This vehicle also has an inertia fuel shut off switch . You can view all this at http://www.bbbind.com/free_tsb.html
Also know that the PCM - engine computer turns on the fuel pump relay . If there is no crankshaft position sensor (RPM signal ) to the PCM ,the PCM will not turn on the fuel pump relay . Relay #5 is fuel pump relay . Do you know how to test electrical circuits ? Use a Volt meter ? Or are you just going to replace the relay and hope that's the problem .
AS I known, the fuel pump is located in the tank. You will need to drop to drop the dank from under the car to gain access to the tank, the pump is in the top of the tank. Opel opcom
usually all of these cars get same way to replace the fuel pomp ... it 's into the fuel tank ... get it down and then you can replace the fuel pomp from fuel tank
When you accelerate, it open more throttle valve and at the same time more fuel is supposed to spray in to meet the demand, but it didn't that why the engine is hesitate. The problem is that you don't have a correct air: gas ratio of 14.6 :1
Need to check
1- Fuel pomp rate of delivery to determine pump is weak for a change.
2- Fuel accumulator ( regulator) if it still maintains correct pressure for Fuel distributor
3- After the#1 2nd #2 fixed and the problem is still existed, then your Fuel distributor need to be taken care of.
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