What else can i do?

Asked by Apr 25, 2016 at 02:42 PM about the 1998 Vauxhall Astra

Question type: Maintenance & Repair

I have replaced the EGR valve< plugs, air filter,fuel filter, cleaned throttle replaced gasket and STILL it starts runs for 5 or 6 seconds and dies. It will rev but still fades and dies.....Im at my wits end and yes i have put petrol in it. CAN ANYONE PLEEEEESE HELP????

4 Answers

70

The first thing you need to do is make sure it is not an immobilizer problem, When you put the key in the ignition and turn it to the second position the dash lights will come on. If the Engine symbol or the 'car with a spanner' symbol flashes, The immobilizer is the problem...Try your other key! A diagnostic check with a proper scanner would show if it was faulty for definite. 2, Possibly fuel pump relay. The fuel Pump Relay is in the box near the battery..

1 of 1 people found this helpful.

thanks Mark, I have'nt seen that symbol at all on dash lights. Will check again though. I thought about the relay (is it the purple one?) i will check it out. How would i check to see if its faulty or not? If I put a multi tester on it and did a continuity test, would that work do you know? Sorry I know i must be pushing it now but would it start and run at all if the Immobiliser was out or wonky? Sorry but the Council are threatening to tow it and its all I got left now Sorry

70

Yes it would start and run 5-6 sec then shut down.. the fuel pump. The fuel pump relay nearest to battery (purple) 4 pin. TRY this: Step 1 – Remove the Fuel Pump Relay Unplug the fuel pump relay, but do not break the cover and connecting tabs. Place it on a work surface. Step 3 – Identify the Components Generally there are four pins (terminals) on the fuel pump relay. One is for input voltage, one is the ground pin, one is the load pin that goes to the fuel pump, and one goes to the battery. To figure out which pin is which, there will usually be numbers on the bottom of the relay that indicate the pin positions, or you can locate a wiring diagram from your relay’s specific manufacturer. Step 4 – Set up the Multi-meter or Ohmmeter Whether you are using an ohmmeter or multi-meter, you'll need to set it to resistance mode. Connect your multi-meter or ohmmeter probes to the relay. One probe should connect to the pin that goes to the fuel pump, and the other should connect to the pin that goes to the battery. Step 5 – Testing the Fuel Pump Relay You want to use either a 12V battery or voltage regulator to test the relay. Connect your ground connection on the power supply to the ground pin on the relay. Touch the power supply's trigger to the input pin. The relay will close, and you should get continuity between the two pins that the meter is connected to. You should also hear a clicking noise coming from the fuel pump relay. This noise is the solenoid inside the relay pulling it shut to connect the two posts together. If your meter does not show continuity from the fuel pump pin and the battery pin, or if you do not hear a clicking from the fuel pump relay, you need to replace your fuel pump relay.

1 of 1 people found this helpful.

Thank you Mark I will try that First thing. I'll let you know......

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