Bravada 2000 intake manifold

[waldenhughes]

also can i remove the injectors and swap them around just to make sure that its not a wiring problem

[waldenhughes]

2 and 3 do not seem to running

[old_master]

Injectors 2 and 3 get their power from different places...not the problem. The ECM grounds the injectors to fire them; grounding is done on separate circuits by the ECM, each injector has its own separate wire...not the problem.

There could be a problem with the pins or sockets in the injector connector, or faulty, dirty, or restricted poppet valves in #2 and #3 cylinders. I'd check the pins and sockets real close, make sure the terminals in "C" "D" "G" and "H" are not damaged.

[waldenhughes]

Ok so turning the engine over i would not get gas out of 2&3 anyway ?
i'll take a look at the pins again and an even closer look at the connector lol

thanks Alex

[old_master]

Injectors 2 and 3 get their power from different circuits. There are 6 power wires to the injectors, all pink wires, they get power from 3 different places on the underhood fuse panel. If that were the problem, (broken power wires) injectors 1, 2, 3 and 5 wouldn't work. The only thing common to both 2 and 3 injectors is the connector, and it would have to be two bent pins. When you remove the electrical connector it exposes 12 pins. Each injector has two pins that connect into the sockets in the connector.

[waldenhughes]

ok think i may have got it wrong it seems it's 2&5
so could i have put the injectors into the wrong holes?
if so do you have a diagram of which injector goes into which hole ?

Alex

[old_master]

Cylinder 2 is the front cylinder on the passenger side. Cylinder 5 is the rear cylinder on the driver side. The fuel lines won't reach, you can't screw those two up. On the side of the black injector housing, near the top, the cylinders they feed are numbered.

[old_master]

If 2 and 5 are not squirting fuel, it could be a power problem as they both get power from the same wire. With the ignition in the RUN position, check all 6 pink wires in the connector for battery voltage. Pay special attention to terminals "B" and "H".

Remove the fuel pump relay before turning the ignition ON.

[waldenhughes]

i have voltage to the wires
it's starting to rain here again so am going to have to call it a night
i want to thank you for all your help it's been great if you can think of any thing please let me know i'll start back on it tomorrow if the rain stops

Thanks again alex

[old_master]

RAIN? I wish... I just plowed out 6" of SNOW off the drive! Got 11" from the storm on Wednesday! Running out of places to put it.

If you have voltage to all of the pink wires in the injector connector, the next step is to manually open injectors 2 and 5 and see if they spray fuel. First, are you sure it's injectors 2 and 5 that are not spraying? (Front cylinder on passenger side and rear cylinder on driver side.) Next, are you comfortable with making and using jumper wires?

[waldenhughes]

Originally Posted by old_master

RAIN? I wish... I just plowed out 6" of SNOW off the drive! Got 11" from the storm on Wednesday! Running out of places to put it.

And thats why I live in florida lol

I will check again tomorrow when it's light and make sure
noproblem with jumper wires
beleave it or not I am a maintenance tech lol I used to repair CNC machines ,
guess I just suck when it comes to cars lol

[old_master]

Originally Posted by waldenhughes

also can i remove the injectors and swap them around just to make sure that its not a wiring problem

The injectors are fired sequentially along with the firing order of the engine. To swap them around, you would need to swap the injectors in the injector housing and the poppets in the intake manifold. Lotta unnecessary work, there is an easier way.

[waldenhughes]

Hi
Ok I manually triggered the injectors by way of jumper wire and some crap came out of 2&5 ,so I then connected the injectors back in and turned the engine over and I was now getting gas coming out of all the injectors ,
Put every thing back together started her up NO CODES!! And ran smooth again took her for a run around the block ran great and no codes
So it was injector 2&5 blocked

Now I just have the front wheel bearings to do and the steering rack to replace LOL

Thanks for all your help

Alex

[old_master]

Good piece of work! Nice job.

When it comes time to get the bearings, don't get cheapies. BCA National and Timken are both good choices.