2.5 l fuel injector problem

Hi again,

ok, I actually managed to remove the rear inst clusted housing! & yes, they are easy to get at.

checked all the bulbs & had 1 dud in the tac.

Grounded the brown wire /white stripe..nothing.

It seems like most of your meeting fall on an event day of my medieval club (SCA). So I've found it tough over the last 2 years to get to one.

Thanks , Rob

Hi I'm back..

OK I found a pink/black wire on the back of the dash and with the key in the on position it reads 12.85 v

Yes, when I grounded the wire the key was on.

I tugged on the fuseable links, but i had checked their continuity with the ohm meter and they were ok. Would it be better not to keep those fuseable links?

next?   

Well, might be onto something with the links being bad.

You might as well pull the ground wire off, clean the lug, and bolt it goes to on the engine.  Even if it's not f'd now, it's just 'a good idea'.

If the battery voltage drops much below 10 volts, the ECM will shut down - so put a meter on it while you're cranking and make sure it's not dropping too low or all of this is for naught.  Probably want to jump it while cranking if your battery is 'suspect'.

What do you mean 'wires reversed'?  Do you mean the high tension leads?
If you're getting backfiring through the throttle body - you've probably got wires reversed!  You're trying to fire on an intake stroke.

If the link(s) are bad - replace them with a new correctly sized one, or put an inline in it's place.  But don't delete them altogether.

Coils should be labeled 1&4, 2&3.  Water pump end is #1.
The wires on EACH coil pack can be flipped either way.  They both fire at the same time anyhow (it's just less confusing if you do them as marked).

If you are dropping too low, and the ECM is shutting down, you could still get weird mis-fires.  Measure voltage at the battery as you're cranking.  All voltages should be equal at any point in the circuit.  If there's ever any variation, you have a faulty connection somewhere inbetween the two measured points.

See those two studs near the battery?  10mm & 11mm nuts.  While you're there, you might want to pull 'em, clean 'em, replace 'em.  They can get wet and corroded since they're right under the louver.

Rob N. wrote: Is there an easy way to get the old fuel out? It must be 1- 2 years old by now.

I ran my '84 on gas which had been sitting in its tank for five years, although I did also add a full jerry can of gas to the tank.

Before I actually ran the engine, I disconnected both fuel lines at the TB and spliced them together with a short piece of clear hose clamped in place. Then I jumpered the fuel pump terminal in the ALDL connector on the console and watched the fuel circulate in the clear hose to make sure there wasn't weird looking stuff (chunks of rust, frogs, etc) being pumped through the system. Basically I was checking to make sure the fuel filter was doing its job. (I didn't want to replace the fuel filter with a new one until after the old filter had grabbed any/all particles of crud floating around in the tank.)

If you're concerned about using the fuel in your tank because of possible water contamination for example, jumper the fuel pump terminal and simply aim the disconnected fuel supply hose into a gas can. Disconnect the power to the terminal as soon as you see the supply of gas start to slow down. You don't wish to run the fuel pump dry.

If you do end up with a gas can of mixed water and gas, the gasoline will float on top of the water. If you're careful, you can pour the gas out into a second container and then add it back to your gas tank (or use it in your lawnmower).

 

tahank you good Doctor. I think I'll replace with correct fuseable links.. Dealer or lordco?

I'll check the bat voltage cranking it over, then I'll try cranking it over again with a battery booster and see what happens.

Thanks for the chart it looks much simpler then the one in the oh manual.

10.25V (cranking) is fine.

To the left is V6, to the right L4.

As for jumping the ALDL...  I'm not sure!  It's been too long since I've done anything with a duke.