Thread: engine stalling 93 RRC v8

Just had a look, the button was pushed down. I moved it up and down and still nothing.

Cheers

Other than the ecu i don`t know of anything that links the pump and coil .

With the ignition off there should be power at pin 15 ecu , fuel pump relay terminal 30 and main relay terminals 86 and 30 .

The fuel pump relay is the one in the blue holder .

If they checkout the purge valve on the canster has a white/purple , with the ignition on for a short time or cranking it should have power and coarse when it`s running .

If that checks there is a white/blue that goes to the inertia switch that should have power with ignition on , same deal as last above .

There is a fuel pump fuse which is wired before or on the relay side of the inertia switch .

The fuel pump is powered through the inertia switch or gets its power from the inertia switch on should be white/blue .

The power feed is not straight forward because of the time out on the pump and the crank and run setup .

If the power ceases at a point between 2 it should be easier to find the fault and if it all checks or none checks let us know .

If you have a helper ,to test you can remove a wire from the starter solenoid and turn the key to crank and hold as far as what your doing speed has no influence so the fact it`s not rotating won`t matter .

Thanks for the tips PLR, I'll follow your steps when I next have a chance. I also swapped out the 14 cux ecu with a spare I have but still no go. Some of the wiring has been altered as I have a Unichip installed. Maybe the unichip has failed? Not sure if this would cut the fuel pump out though.

Originally Posted by milld

........I'm not sure what I should be getting from the one that runs on top of the alternator with the twin plug connector. I have the Bosch conversion system.

Can you clarify on what you mean by .... "I have the Bosch conversion system"

If you pull the electrical plug on the MAF ... then this will make the ECU go into default mode .... but the car will start OK (Lets you know if the MAF could be at fault)

If you hit the bottom of the fuel tank with a rubber mallet ... this may jump a worn out fuel pump back into life

If you are using the original LUCUS ignition module .... then this will have a good change of being cuput .... but they generally fire back up when the motor is cold (but can fail altogether) ..... If you have the Bosch ignition module conversion .... then "maybe" this could be faulty

The other thing check is the voltage of the TPS .......


Electricity .... gotta love em


Hope it helps
Mike

Hi Mike,

Thanks for the tips,

I have the Bosch ignition module Bim 024 I'll give the tank a good wack tomorrow arvo after work and see if I can get some life in to it. It would seem though that the 2 problems are linked together somehow. I was letting it idle for 5 mins when I got home and listening to the fuel pump. Stepped inside the house and I could hear it start to splutter for a bit then die, raced outside but too late. I could get it to just run after that but I noticed there wasn't that familiar sound of the fuel pump for a few seconds with ignition. After a few more starts......nothing. After mucking around swapping fuel pump relays I thought to test spark......nothing. I Do have another TPS so I could try that. I really need to buy another bim 024 anyways for testing purposes. I might try another MAF as I have a spare.

thanks

Steve

Originally Posted by milld

I have the Bosch ignition module Bim 024 I'll give the tank a good wack tomorrow arvo after work and see if I can get some life in to it. It would seem though that the 2 problems are linked together somehow.

I guess you can only eliminate 1 thing at a time to get you closer to the solution .....


To help in figuring out fuel pump issues .... Buy some electrical contact cleaner fluid (circuit board cleaner) .... Repco have a CRC can for $20 .... Great stuff ...

Spray some up the intake manifold via 1 of the vent hose connections .... If you have spark and the motor gets a sniff of that stuff, then it will fire up for a burst .....

Hi All,

Just an update...... I bit the bullet today and went out looking for another Bosch Bim 024 module. Super cheap no longer sells but I managed to get one at autobarn for a small fortune .......but I did get the last one ))). I figured that it would be handy to have a spare even if it wasn't the problem.

I can report that I now have spark ) I thought for giggles I would plug the old one back in and when I turned on the ignition and holding the earth wire at the same time holding it against the module I felt myself getting electricuted with pulses of electricity even though I wasn't trying to turn the motor over. I couldn't get spark to show from the coil though. Plug in new one and nice big blue spark from coil Going back, the original Bim 024 was installed in 2000. It is located remotely with a small heat sink attached to it that had thermal paste over the base.

Still no life from pump even though I bashed the **** out of the metal tank ,
one step closer. I will try and find some aerostart or contact cleaner and see if I can get it to burst in to life.


Cheers

Just a quick update;

I'm getting 12v to the plug nearest the fuel pump for a couple of seconds with the ignition on. Time to pull out the fuel pump and see if there are any bad connections. How can one explain 2 bad things happening at once? It was very strange at the time as I live out on a property so there is not much traffic but just as a Cruiser was passing by in the opposite direction that is when it all started to cut out. Right at that moment of crossing. Maybe he had some sort of EMP device on board to cars he dislikes? LOL