Need TBI help...backfiring

[clarkjw24]

if you can wait till in the morning i can tell you what color wires go where in my 87 k5 as far as the aldl is concerned.

ryan

Hey I can wait. I was planning on doing this in the morning anyway. BTW I robbed this tbi and ecm from an 87 so that will be great.

Is this what I'm looking for in a cable?
http://motors.search.ebay.com/?from=R40&satitle=aldl+cable

 

[ryan22re]

ok, should get to the shop around 7 am, look at the wires, and post up.

ryan

 

[randy88k5]

http://winaldl.joby.se/aldlcable.htm

http://www.aldlcable.com/

http://www.customefis.com/

http://www.akmcables.com/ic.htm

 

[clarkjw24]

Thanks Randy good stuff. I'm going to build my own cable in a couple of days. Now I just need to get the aldl port straight. This is what I've got right now.

 

[ryan22re]

yep thats what my aldl looks like

A black/white
B white
C brown
E orange
F tan/Black

not sure where the tan/black goes

ryan

 

[clarkjw24]

Heres the update: I've got the aldl port all straight. I made a cable and ran Winaldl, it worked for a 7 secs (I was loging data) and then I think my solering skills became apparent. So I borrowed a friends snap on computer and checked it out. No codes came up and it looked as if all sensors were well within spec. Its still not running right. I have since change the fuel filter, coil, plugs, wires, dist. cap, rotor button, and now I thinking about the fuel pump. Is there anyway to check this pump before I by a new one? I know a guage but I don't have one. If I unhook the main out line on the pump and switch the truck on should'nt fuel start pumping out? It doesn't.

 

[randy88k5]

To make sure 'not getting fuel' is the problem, just incase I have overlooked something, I spray some ether (starting fluid) down the intake while cranking. If the truck runs as long as you keep spraying the fluid, then its most likely a fuel issue. A pump would be a likely culprit. Check to see if your getting power to the pump. Check the relay. Just to be sure, I even put power to the pumps power wire to see if I could manually run the pump before I dropped the tank.

All being said, its most likely a fuel pump. I would get an ACDelco just for the piece of mind. Dont forget to get a strainer sock(fuel pump filter) while your at it.